PR_DisableClockInterrupts
disables timer signals used for preemptive scheduling.
... syntax #include <prinit.h> void pr_disableclockinterrupts(void); ...

:-moz-handler-disabled - CSS: Cascading Style Sheets
the :-moz-handler-disabled css pseudo-class is a mozilla extension that matches elements that can't be displayed because their handlers have been disabled by the user.
... syntax :-moz-handler-disabled specifications not part of any standard.

:-moz-user-disabled - CSS: Cascading Style Sheets
the :-moz-user-disabled css pseudo-class is a mozilla extension that matches elements representing images that were not loaded because images have been entirely disabled by the user's preferences.
... syntax :-moz-user-disabled examples styling user-disabled elements :-moz-user-disabled { background-color: lightgray; padding: 8px; } specifications not part of any standard.

buttondisabledaccept - Archive of obsolete content
« xul reference home buttondisabledaccept type: boolean if true, the accept button is disabled.

disableautocomplete - Archive of obsolete content
« xul reference home disableautocomplete new in thunderbird 3requires seamonkey 2.0 type: boolean if true, the autocomplete behavior will be disabled.

disableautoselect - Archive of obsolete content
« xul reference home disableautoselect type: boolean if this attribute is true or omitted, the selected item on the menu will update to match what the user entered in the textbox.

disablechrome - Archive of obsolete content
« xul reference home disablechrome type: boolean set this attribute to true to disable chrome in the window.

disableclose - Archive of obsolete content
« xul reference home disableclose type: boolean if this attribute is true the close button will be disabled.

disablefastfind - Archive of obsolete content
« xul reference homedisablefastfindtype: booleanput disablefastfind="true" on the root element of a xul document, which is intended to be loaded in a tab, to disable the find bar for the tab with this document.

disableglobalhistory - Archive of obsolete content
« xul reference home disableglobalhistory type: boolean disables global history for the docshell attached to the browser while keeping session history active.

disablehistory - Archive of obsolete content
« xul reference home disablehistory type: boolean disables both session and global history for the docshell attached to the browser.

disablesecurity - Archive of obsolete content
« xul reference home disablesecurity type: boolean set this attribute to true to disable the security ui for this browser.

textbox.disableAutocomplete - Archive of obsolete content
« xul reference home disableautocomplete obsolete since gecko 1.9.1 type: boolean if true, the autocomplete behavior will be disabled.

textbox.disablehistory - Archive of obsolete content
« xul reference home disablehistory obsolete since gecko 2.0 type: boolean note: applies to: thunderbird and seamonkeyif false, an arrow button will appear on the end of the textbox which will open a dropdown menu of all available results.

disableAutocomplete - Archive of obsolete content
« xul reference disableautocomplete type: boolean gets and sets the value of the disableautocomplete (or disableautocomplete) attribute.

disableKeyNavigation - Archive of obsolete content
« xul reference disablekeynavigation type: boolean gets or sets the value of the disablekeynavigation attribute.

disableautoselect - Archive of obsolete content
« xul reference disableautoselect type: boolean gets and sets the value of the disableautoselect attribute.

browser.pagethumbnails.capturing_disabled
the preference browser.pagethumbnails.capturing_disabled controls whether the application creates screenshots of visited pages which will be shown if the web page is shown in the grid of the "new tab page" (about:newtab) which offers the most often visited pages for fast navigation.

disabled - Web APIs
is a boolean indicating whether or not the control is disabled, meaning that it does not accept any clicks.

Index - Archive of obsolete content
443 disabling interruptible reflow add the following variables to your environment to disable gecko interruptible reflow: 444 document loading - from load start to finding a handler docshell, outdated_articles, uriloader this document describes the beginning of the document loading process.
...the access is disabled by default, and there is nothing the user needs to do to open access, and nothing that can go wrong to make a hole in his firewall.
... 788 buttondisabledaccept xul attributes, xul reference no summary!
...And 21 more matches

JavaScript modules - JavaScript
firefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsimportchrome full support 61edge full support 16 full support 16 full support 15disabled disabled from version 15: this feature is behind the experimental javascript features preference.firefox full support 60 full support 60 no support 54 — 60disabled disabled from version 54 until version 60 (exclusive): this feature is behind the dom.modulescripts.enabled preferen...
...ri full support 10.1webview android full support 61chrome android full support 61firefox android full support 60 full support 60 no support 54 — 60disabled disabled from version 54 until version 60 (exclusive): this feature is behind the dom.modulescripts.enabled preference.
... full support 12.0.0notes disabled notes modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module".
...And 19 more matches

BluetoothCharacteristicProperties - Web APIs
full support 56notes disabled notes linux and versions of windows earlier than 10.disabled from version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 56notes disabled notes linux and versions of windows earlier than 10.disabled from version 56: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
...And 17 more matches

Index - Archive of obsolete content
41 buttondisabledaccept xul attributes, xul reference no summary!
... 93 disablekeynavigation xul attributes, xul reference no summary!
... 94 disableautocomplete xul attributes, xul reference no summary!
...And 16 more matches

sslfnc.html
ssl_rollback_detection disables detection of a rollback attack.
... ssl_cipherprefsetdefault enables or disables ssl2 or ssl3 cipher suites (subject to which cipher suites are permitted or disallowed by previous calls to one or more of the ssl export policy functions).
... this function must be called once for each cipher you want to enable or disable by default.
...And 16 more matches

BluetoothRemoteGATTDescriptor - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
...And 15 more matches

Index - Web APIs
if the track is disabled by setting enabled to false, the track is muted and does not produce audio.
... 197 audiotracklist.onchange api, adding audio tracks, adding tracks, audio, audiotracklist, event handler, html dom, media, property, reference, addtrack, onchange, track the audiotracklist property onchange is an event handler which is called when the change event occurs, indicating that one or more of the audiotracks in the audiotracklist have been enabled or disabled.
... 200 audiotracklist: change event event the change event is fired when an audio track is enabled or disabled, for example by changing the track's enabled property.
...And 15 more matches

WebAssembly - JavaScript
afariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jswebassemblychrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0compileerrorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabl...
... 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0globalchrome full support ...
...And 14 more matches

WebAssembly
afariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jswebassemblychrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0compileerrorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabl...
... 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0globalchrome full support ...
...And 14 more matches

@font-feature-values - CSS: Cascading Style Sheets
efox for androidopera for androidsafari on iossamsung internet@font-feature-valueschrome no support noedge no support nofirefox full support 34 full support 34 full support 24disabled disabled from version 24: this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
... full support 9.1webview android no support nochrome android no support nofirefox android full support 34 full support 34 full support 24disabled disabled from version 24: this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
...rnet android no support no@annotationchrome no support noedge no support nofirefox full support 34 full support 34 full support 24disabled disabled from version 24: this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
...And 13 more matches

textbox (Toolkit autocomplete) - Archive of obsolete content
attributes accesskey, autocompletepopup, autocompletesearch, autocompletesearchparam, completedefaultindex, completeselectedindex,crop, disableautocomplete, disabled, disablekeynavigation, enablehistory, focused, forcecomplete, highlightnonmatches, ignoreblurwhilesearching, inputtooltiptext, label, maxlength, maxrows, minresultsforpopup, nomatch, onchange, oninput, onsearchcomplete, ontextentered, ontextreverted, open, readonly,showcommentcolumn, showimagecolumn, size, tabindex, tabscrolling, timeout, type, value properties acc...
...essibletype, completedefaultindex, controller, crop, disableautocomplete, disablekeynavigation, disabled, editable, focused, forcecomplete, highlightnonmatches, ignoreblurwhilesearching, inputfield, label, maxlength, maxrows, minresultsforpopup, open, popup, popupopen, searchcount, searchparam, selectionend, selectionstart, showcommentcolumn, showimagecolumn,size, tabindex, tabscrolling, textlength, textvalue, timeout, type, value methods getsearchat, onsearchcomplete, ontextentered, ontextreverted, select, setselectionrange examples <textbox type="autocomplete" autocompletesearch="history"/> attributes accesskey type: character this should be set to a character that is used as a shortcut key.
... disableautocomplete new in thunderbird 3requires seamonkey 2.0 type: boolean if true, the autocomplete behavior will be disabled.
...And 12 more matches

Shell global objects
disablelastwarning() disable storing the last warning.
... setcachingenabled(b) enable or disable js caching.
... disablesinglestepprofiling() return the array of backtraces recorded by enablesinglestepprofiling.
...And 12 more matches

Feature-Policy - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.
...And 12 more matches

Textbox (XPFE autocomplete) - Archive of obsolete content
attributes accesskey, alwaysopenpopup, autocompletesearch, autocompletesearchparam, autofill, autofillaftermatch, autofill, completedefaultindex, crop, disableautocomplete, disableautocomplete, disabled, disablehistory, enablehistory, focused, forcecomplete, forcecomplete, highlightnonmatches, ignoreblurwhilesearching, ignoreblurwhilesearching, inputtooltiptext, label, maxlength, maxrows, minresultsforpopup, minresultsforpopup, nomatch, onchange, onerrorcommand, oninput, onsearchcomplete, ontextcommand, ontextentered, ontextrevert, ontextreverted, open,...
... readonly, searchsessions, showcommentcolumn, showcommentcolumn, showpopup, size, tabindex, tabscrolling, tabscrolling, timeout, type, useraction, value properties accessible, alwaysopenpopup, autofill, autofillaftermatch, completedefaultindex, crop, disableautocomplete, disabled, editable, focused, forcecomplete, highlightnonmatches, ignoreblurwhilesearching, inputfield, issearching, iswaiting, label, maxlength, maxrows, minresultsforpopup, nomatch, open, popup, popupopen, resultspopup, searchcount, searchparam, searchsessions, selectionend, selectionstart, sessioncount, showcommentcolumn, showpopup, size, tabindex, tabscrolling, textlength, textvalue, timeout, type, useraction, value methods addsession, clearresults, getdefaultsession, getresultat, getresultcount...
... disableautocomplete obsolete since gecko 1.9.1 type: boolean if true, the autocomplete behavior will be disabled.
...And 11 more matches

IME handling guide
if ime is not fully available(i.e., user cannot enable ime), we call this state "disabled".
...although, this can be disabled with "dom.compositionevent.allow_control_characters" pref.
... when a remote process gets focus, temporarily, imestatemanager in parent process disables ime in the widget.
...And 11 more matches

BasicCardResponse - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbasiccardresponsechrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true) and the dom.payments.request.supportedregions preference (needs to be set to a comma-delineated list of one or more 2-character iso country codes indicating the cou...
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true) and the dom.payments.request.supportedregions preference (needs to be set to a comma-delineated list of one or more 2-character iso country codes indicating the cou...
... samsung internet android full support 7.0billingaddresschrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...And 11 more matches

Theme changes in Firefox 2 - Archive of obsolete content
global/notification.css new file; defines styles used by the notification strip that appears at the top of browser windows to present notices such as "a popup was blocked." global/scrollbox/autorepeat-arrow-dn-dis.gif new file; icon displayed for a disabled autorepeat down arrow in a scroll box.
... global/scrollbox/autorepeat-arrow-up-dis.gif new file; icon displayed for a disabled autorepeat up arrow in a scroll box.
... mozapps/extensions/itemdisabledfader.png new file; a translucent png used as an overlay on top of items that are disabled in the add-ons manager.
...And 10 more matches

<textarea> - HTML: Hypertext Markup Language
the <textarea> element also accepts several attributes common to form <input>s, such as autocomplete, autofocus, disabled, placeholder, readonly, and required.
...possible values are: none: completely disables automatic capitalization.
... disabled this boolean attribute indicates that the user cannot interact with the control.
...And 10 more matches

MenuItems - Archive of obsolete content
as this can be more complicated, it is also possible to use the autocheck attribute to disable this behavior.
... as with checkbox type menuitems, you can also set the autocheck attribute on a radio menuitem to disable the automatic adjustment of the checked state.
... disabling a menuitem to have an item initially disabled, set the disabled attribute to true as in the following example: <menuitem label="undo" accesskey="u" disabled="true"/> when disabled, the item will appear greyed out and the action associated with the item cannot be carried out.
...And 9 more matches

tree - Archive of obsolete content
attributes disablekeynavigation, disabled, editable, enablecolumndrag, flags, hidecolumnpicker, onselect, rows, seltype, statedatasource, tabindex, treelines properties accessibletype, builderview, columns, contentview, currentindex, disablekeynavigation, disabled, editingcolumn, editingrow, enablecolumndrag, firstordinalcolumn, inputfield, seltype, selstyle, tabindex, treeboxobject, view examples a tree wi...
...rue" --> <treeitem container="true" open="true"> <treerow> <treecell label="2"/> <treecell label="b"/> </treerow> <treechildren> <treeitem> <treerow> <treecell label="2a"/> <treecell label="ba"/> </treerow> </treeitem> </treechildren> </treeitem> </treechildren> </tree> attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 9 more matches

UI pseudo-classes - Learn web development
:enabled and :disabled, and :read-only and :read-write: target enabled or disabled form controls (e.g.
... with the disabled html attribute set), and read-write or read-only form controls (e.g.
... styling enabled and disabled inputs, and read-only and read-write an enabled element is an element that can be activated; it can be selected, clicked on, typed into, etc.
...And 9 more matches

Software accessibility: Where are we today?
many, including those who were blind or physically disabled, were unable to use applications which were written for microsoft operating systems.
...here are some of the groups of people that have problems doing some of those tasks: print disabled: blind, deaf-blind, low vision, obstructed vision, dyslexic, cognitively disabled and illiterate individuals.
... physically disabled: users have amputations, paralysis, repetitive stress, cerebral palsy, muscular dystrophy, parkinson's or other problems limiting mobility.
...And 9 more matches

Index
you can use the tool to add and delete pkcs #11 modules, change passwords, set defaults, list module contents, enable or disable slots, enable or disable fips 140-2 compliance, and assign default providers for cryptographic operations.
...modutil can add and delete pkcs #11 modules, change passwords on security databases, set defaults, list module contents, enable or disable slots, enable or disable fips 140-2 compliance, and assign default providers for cryptographic operations.
... -disable modulename disable all slots on the named module.
...And 9 more matches

Fullscreen API - Web APIs
document.onfullscreenerror an event handler for the fullscreenerror event that gets sent to a document when an error occurs while trying to enable or disable full-screen mode for the entire document.
... ≤79 full support ≤79 full support ≤79alternate name alternate name uses the non-standard name: webkitisfullscreenfirefox full support 64 full support 64 no support 49 — 65disabled disabled from version 49 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).
... 71 full support 71 full support 18alternate name alternate name uses the non-standard name: webkitisfullscreenfirefox android full support 64 full support 64 no support 49 — 65disabled disabled from version 49 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).
...And 9 more matches

Commands - Archive of obsolete content
however, a command has the advantage that it can be disabled when needed and can be invoked without needing to know about the details of its implementation.
...in addition, the menu commands would need to be enabled and disabled depending on whether the focused element had selected text or not, and for paste operations, whether there is something suitable on the clipboard to paste.
... additionally, if you set the disabled attribute on the command, the command will be disabled and it will not be invoked.
...And 8 more matches

listbox - Archive of obsolete content
attributes disabled, disablekeynavigation, preference, rows, seltype, suppressonselect, tabindex, value properties accessibletype, currentindex, currentitem, disabled, disablekeynavigation, itemcount, listboxobject, selectedcount, selectedindex, selecteditem, selecteditems, seltype, suppressonselect, tabindex, value methods additemtoselection, appenditem, clearselection, ensureelementisvisible, ensureinde...
...,000"} ]; for (var i = 0; i < gems.length; i++) { var row = document.createelement('listitem'); var cell = document.createelement('listcell'); cell.setattribute('label', gems[i].gem); row.appendchild(cell); cell = document.createelement('listcell'); cell.setattribute('label', gems[i].price ); row.appendchild(cell); thelist.appendchild(row); } attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 8 more matches

richlistbox - Archive of obsolete content
attributes disabled, disablekeynavigation, preference, seltype, suppressonselect, tabindex, value properties accessibletype, currentindex, currentitem, disabled, disablekeynavigation, itemcount, scrollboxobject, selectedcount, selectedindex, selecteditem, selecteditems, seltype, suppressonselect, tabindex, value methods additemtoselection, appenditem, clearselection, ensureelementisvisible, ensureindexisv...
... attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 8 more matches

NSS tools : modutil
modutil can add and delete pkcs #11 modules, change passwords on security databases, set defaults, list module contents, enable or disable slots, enable or disable fips 140-2 compliance, and assign default providers for cryptographic operations.
... -disable modulename disable all slots on the named module.
... use the -slot argument to disable a specific slot.
...And 8 more matches

Window.open() - Web APIs
but if javascript support is disabled or non-existent on the user's browser, then the onclick event handler is ignored and the browser loads the referenced resource in the target frame or window that has the name "promotefirefoxwindowname".
... you cannot reliably because the users can prevent the window from being resized by setting dom.disable_window_move_resize to true in about:config or by editing accordingly their user.js file.
... in general, users usually disable moving and resizing of existing windows because allowing authors' scripts to do so has been abused overwhelmingly in the past and the rare scripts that do not abuse such feature are often wrong, inaccurate when resizing the window.
...And 8 more matches

arrowscrollbox - Archive of obsolete content
attributes clicktoscroll, disabled, smoothscroll, tabindex properties disabled, scrollboxobject, scrollincrement, smoothscroll, tabindex methods ensureelementisvisible, scrollbyindex, scrollbypixels examples <arrowscrollbox orient="vertical" flex="1"> <button label="red"/> <button label="blue"/> <button label="green"/> <button label="yellow"/> <button label="orange"/> <button label="silver"/> <button ...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 7 more matches

menulist - Archive of obsolete content
attributes accesskey, crop, disableautoselect, disabled, editable, focused, image, label, oncommand, open, preference, readonly, sizetopopup, tabindex, value properties accessibletype, crop, description, disableautoselect, disabled, editable, editor, image, inputfield, itemcount, label, menuboxobject, menupopup, open, selectedindex, selecteditem, tabindex, value methods appenditem, contains, getindexofitem, getitematindex...
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disableautoselect type: boolean if this attribute is true or omitted, the selected item on the menu will update to match what the user entered in the textbox.
... disabled type: boolean indicates whether the element is disabled or not.
...And 7 more matches

preference - Archive of obsolete content
attributes disabled, instantapply, inverted, name, onchange, readonly, tabindex, type properties defaultvalue, disabled, hasuservalue, inverted, locked, name, preferences, readonly, tabindex, type, value, valuefrompreferences methods reset examples <preferences> <preference id="pref_id" name="preference.name" type="int"/> </preferences> see preferences system for a complete example.
... attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 7 more matches

textbox - Archive of obsolete content
attributes cols, decimalplaces, disabled, emptytext, hidespinbuttons, increment, label, max, maxlength, min, multiline, newlines, onblur, onchange, onfocus, oninput, placeholder, preference, readonly, rows, searchbutton, size, spellcheck, tabindex, timeout, type, value, wrap, wraparound properties accessibletype, clickselectsall, decimalplaces, decimalsymbol, defaultvalue, disabled, editor, emptytext, increment, inputfield, label,...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 7 more matches

NSS tools : modutil
modutil can add and delete pkcs #11 modules, change passwords on security databases, set defaults, list module contents, enable or disable slots, enable or disable fips 140-2 compliance, and assign default providers for cryptographic operations.
... -disable modulename disable all slots on the named module.
... use the -slot argument to disable a specific slot.
...And 7 more matches

WebGL constants - Web APIs
constant name value description cull_face 0x0b44 passed to enable/disable to turn on/off culling.
... enabling and disabling constants passed to webglrenderingcontext.enable() or webglrenderingcontext.disable().
... constant name value description blend 0x0be2 passed to enable/disable to turn on/off blending.
...And 7 more matches

tab - Archive of obsolete content
attributes accesskey, afterselected, beforeselected, command, crop, disabled, first-tab, image, label, last-tab, linkedpanel, oncommand, pending, pinned, selected, tabindex, unread, validate, value properties accesskey, accessibletype, command, control, crop, disabled, image, label, linkedpanel, selected, tabindex, value examples (example needed) attributes accesskey type: character this should be set to a character that is used as a shortcut key.
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 6 more matches

tabs - Archive of obsolete content
attributes closebutton, disableclose, disabled, onclosetab, onnewtab, onselect, setfocus, selectedindex, tabbox, tabindex, tooltiptextnew, value, properties accessibletype, disabled, itemcount, selectedindex, selecteditem, tabindex, value, methods advanceselectedtab, appenditem, getindexofitem, getitematindex, insertitemat, removeitemat examples (example needed) attributes closebutton obsolete since ge...
... disableclose type: boolean if this attribute is true the close button will be disabled.
... disabled type: boolean indicates whether the element is disabled or not.
...And 6 more matches

Using the Browser API
enabling/disabling the back and forward buttons you will also notice after a bit of surfing that the back and forward buttons are disabled when you cannot move backwards/forwards, and enabled when you can.
... we did this with the following functions: function canmovebwd() { var request = browser.getcangoback(); request.onsuccess = function() { if (request.result) { back.disabled = false; console.log("it's possible to navigate the history backward."); } else { back.disabled = true; console.log("it's not possible to navigate the history backward."); } } } function canmovefwd() { var request = browser.getcangoforward(); request.onsuccess = function() { if (request.result) { fwd.disabled = false; console.log("it's possible to navigate the history forward."); } else { fwd.disabled = true; console.log("it's not possible to navigate the history forward."); } } } so here we have functions to detect whether we can navigat...
...if true is returned, the relevant button is disabled, and if false is returned, the relevant button is enabled.
...And 6 more matches

NSS environment variables
nss_shared_db 3.12 nss_disable_arena_free_list string (any non-empty value) define this variable to get accurate leak allocation stacks when using leak reporting software.
... nss_memory_allocation 3.4 nss_disable_unload string (any non-empty value) disable unloading of dynamically loaded nss shared libraries during shutdown.
..."0" disables it, "1" enables it.
...And 6 more matches

nsILoginManagerStorage
method overview void addlogin(in nsilogininfo alogin); unsigned long countlogins(in astring ahostname, in astring aactionurl, in astring ahttprealm); void findlogins(out unsigned long count, in astring ahostname, in astring aactionurl, in astring ahttprealm, [retval, array, size_is(count)] out nsilogininfo logins); void getalldisabledhosts([optional] out unsigned long count, [retval, array, size_is(count)] out wstring hostnames); void getallencryptedlogins([optional] out unsigned long count, [retval, array, size_is(count)] out nsilogininfo logins); void getalllogins([optional] out unsigned long count, [retval, array, size_is(count)] out nsilogininfo logins); boolean getloginsavingenabled(in astring ahost); void init(...
... getalldisabledhosts() implement this method to return a list of all hosts for which password saving is disabled.
... void getalldisabledhosts( out unsigned long count, optional [retval, array, size_is(count)] out wstring hostnames ); parameters count optional return in this parameter the number of disabled hostnames returned in the hostnames parameter.
...And 6 more matches

:is() (:matches(), :any()) - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internet:is()chrome full support 68notes disabled full support 68notes disabled notes combinators in the selector list argument may not match correctly (see bug 842157).disabled from version 68: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... no support 66 — 71notes alternate name disabled notes combinators in the selector list argument may not match correctly (see bug 842157).alternate name uses the non-standard name: :matches()disabled from version 66 until version 71 (exclusive): this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 12notes alternate name notes doesn't support combinators.alternate name uses the non-standard name: :-webkit-any()edge full support 79notes disabled full support 79notes disabled notes combinators in the selector list argument may not match correctly (see bug 842157).disabled from version 79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
...And 6 more matches

<input>: The Input (Form Input) element - HTML: Hypertext Markup Language
m autofill feature autofocus all automatically focus the form control when the page is loaded capture file media capture input method in file upload controls checked radio, checkbox whether the command or control is checked dirname text, search name of form field to use for sending the element's directionality in form submission disabled all whether the form control is disabled form all associates the control with a form element formaction image, submit url to use for form submission formenctype image, submit form data set encoding type to use for form submission formmethod image, submit http method to use for form submission formnovalidate image, subm...
... disabled a boolean attribute which, if present, indicates that the user should not be able to interact with the input.
... disabled inputs are typically rendered with a dimmer color or using some other form of indication that the field is not available for use.
...And 6 more matches

WebAssembly.Table - JavaScript
operasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jstablechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0table() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes...
... disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full...
...And 6 more matches

Enhanced Extension Installation - Archive of obsolete content
when changes are made to the extensions datasource - new items are installed, old items uninstalled, enabled or disabled, a .autoreg file is written to the profile directory as well, which tells the startup code that the system has been modified, so that it destroys the component registries, finishes pending transactions and regenerates metadata appropriately.
... uninstallation, disabling, enabling these functions work on the same principle as installation - the user requests an action through the ui while the application is running and metadata is written (tobeuninstalled, tobedisabled, tobeenabled) and a .autoreg file created in the profile so that on the subsequent startup the extension system's startup routine can remove files (in the uninstall case) and write a new extensions.ini file listing the directories for the currently "active" items.
... <profile>/extensions.rdf -visible items this file contains non-startup and compatibility metadata for extensions that are visible to the user, whether they are enabled or disabled.
...And 5 more matches

Search Extension Tutorial (Draft) - Archive of obsolete content
due to the large volume of user complaints regarding hidden settings being changed against their will, and not being restored after the add-ons responsible are disabled, mozilla will take any steps necessary to mitigate the impact of offending add-ons.
...pref("browser.search.defaultenginename", "data:text/plain,browser.search.defaultenginename=example engine"); in the case or restartless extensions, the preferences need to be changed manually, and reverted when the extension is disabled if they have not been changed in the meantime.
... while changes to default preference values will not persist across sessions, restartless extensions must nevertheless restore them for the balance of the session after they have been disabled.
...And 5 more matches

button - Archive of obsolete content
attributes accesskey, autocheck, checkstate, checked, command, crop, dir, disabled, dlgtype, group, icon, image, label, open, orient, tabindex, type properties accesskey, accessibletype, autocheck, checkstate, checked, command, crop, dir, disabled, dlgtype, group, image, label, open, orient, tabindex, type examples <button label="press me" oncommand="alert('you pressed me!');"/> attributes accesskey type: character this should be set to a charact...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

checkbox - Archive of obsolete content
attributes accesskey, checked, command, crop, disabled, src, label, preference, tabindex properties accesskey, accessibletype, checked, command, crop, disabled, src, label, tabindex examples <checkbox label="enable javascript" checked="true"/> <checkbox label="enable java" checked="false"/> attributes accesskey type: character this should be set to a character that is used as a shortcut key.
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

command - Archive of obsolete content
in addition, disabling the command will automatically disable the menu items and keyboard shortcuts.
...see also: command attribute, commandset element attributes disabled, label, oncommand,reserved examples the following code will send a paste command (cmd_paste) to the currently focused element: // first include chrome://global/content/globaloverlay.js godocommand("cmd_paste"); example with two buttons <commandset><command id="cmd_openhelp" oncommand="alert('help');"/></commandset> <button label="help" command="cmd_openhelp"/> <button label="more help" co...
...mmand="cmd_openhelp"/> attributes disabled type: boolean indicates whether the element is disabled or not.
...And 5 more matches

description - Archive of obsolete content
attributes crop, disabled, tabindex value properties accessibletype, crop, disabled, tabindex, value style classes header, indent, monospace, plain, small-margin examples this is a long section of text that will word wrap when displayed <description> this is a long section of text that will word wrap when displayed.
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

label - Archive of obsolete content
attributes accesskey, control, crop, disabled, href, value properties accesskey, accessibletype, control, crop, disabled, value style classes header, indent, monospace, plain, small-margin, text-link examples <label value="email address" control="email"/> <textbox id="email"/> attributes accesskey type: character this should be set to a character that is used as a shortcut key.
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

listcell - Archive of obsolete content
attributes crop, disabled, image, label, type properties disabled style classes listcell-iconic, examples (example needed) attributes crop type: one of the values below if the label of the element is too big to fit in its given space, the text will be cropped on the side specified by the crop attribute.
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

listitem - Archive of obsolete content
attributes accesskey, checked, command, crop, current, disabled, image, label, preference, selected, tabindex, type, value properties accesskey, accessible, checked, control, crop, current, disabled, image, label, selected, tabindex, value style classes listitem-iconic examples <listbox id="thelist"> <listitem label="ruby"/> <listitem label="emerald"/> <listitem label="sapphire" selected="true"/> <listitem label="diamond"/> </listbox> ...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

menuitem - Archive of obsolete content
attributes acceltext, accesskey, allowevents, autocheck, checked, closemenu, command, crop, description, disabled, image, key, label, name, selected, tabindex, type, validate, value properties accessibletype, accesskey, command, control, crop, disabled, image, label, labelelement, parentcontainer, selected, tabindex, value style classes menuitem-iconic, menuitem-non-iconic examples <menulist> <menupopup> <menuitem label="option 1" value="1"/> <menuitem label="option 2" value="2"/> <menuitem label="option 3" value="3"/>...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

menuseparator - Archive of obsolete content
attributes acceltext, accesskey, allowevents, command, crop, disabled, image, label, selected, tabindex, value properties accessibletype, accesskey, command, control, crop, disabled, image, label, labelelement, parentcontainer, selected, tabindex, value examples <menu label="menu"> <menupopup> <menuitem label="item1"/> <menuseparator/> <menuitem label="item2"/> <menuitem label="item3"/> </menupopup> </menu> attributes acceltext type: string text that appears beside the menu label to indicate the shortcut key...
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

radio - Archive of obsolete content
attributes accesskey, command, crop, disabled, focused, group, image, label, selected, tabindex, value properties accesskey, accessibletype, control, crop, disabled, image, label, radiogroup, selected, tabindex, value examples <radiogroup> <radio id="orange" label="red" accesskey="r"/> <radio id="violet" label="green" accesskey="g" selected="true"/> <radio id="yellow" label="blue" accesskey="b" disabled="true"/> </radiogro...
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

radiogroup - Archive of obsolete content
attributes disabled, focused, preference, tabindex, value properties accessibletype, disabled, focuseditem, itemcount, selectedindex, selecteditem, tabindex, value methods appenditem, checkadjacentelement, getindexofitem, getitematindex, insertitemat, removeitemat examples <radiogroup> <radio id="orange" label="red"/> <radio id="violet" label="green" selected="true"/> <radio id="yellow" label="...
...blue"/> </radiogroup> attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

scale - Archive of obsolete content
attributes dir, disabled, increment, max, min, movetoclick, pageincrement, tabindex, value properties disabled, max, min, increment, pageincrement, tabindex, value, methods decrease, decreasepage, increase, increasepage, examples horizontal scale: <scale min="1" max="10"/> vertical scale: <scale min="1" max="10" orient="vertical"/> attributes dir type: one of the values below the direction ...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

toolbarbutton - Archive of obsolete content
attributes accesskey, autocheck, checkstate, checked, command, crop, dir, disabled, dlgtype, group, image, label, oncommand, open, orient, tabindex, title, type, validate properties accesskey, accessibletype, autocheck, checkstate, checked, command, crop, dir, disabled, dlgtype, group, image, label, open, orient, tabindex, type examples <toolbar id="test-toolbar"> <toolbarbutton accesskey="p" label="plain"/> <toolbarbutton accesskey="c" label="checkbox" type=...
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 5 more matches

WAI-ARIA basics - Learn web development
states — special properties that define the current conditions of elements, such as aria-disabled="true", which specifies to a screenreader that a form input is currently disabled.
... note: also, try to make sure you test your site with a variety of real users — non-disabled people, people using screenreaders, people using keyboard navigation, etc.
...for example, aria-disabled="true" can be used to indicate that a form field is disabled.
...And 5 more matches

NSS Tools modutil
you can use the tool to add and delete pkcs #11 modules, change passwords, set defaults, list module contents, enable or disable slots, enable or disable fips 140-2 compliance, and assign default providers for cryptographic operations.
... -disable modulename disable all slots on the named module.
... use the [-slot slotname] argument to disable a specific slot.
...And 5 more matches

Document.execCommand() - Web APIs
syntax document.execcommand(acommandname, ashowdefaultui, avalueargument) return value a boolean that is false if the command is unsupported or disabled.
... enableabsolutepositioneditor enables or disables the grabber that allows absolutely-positioned elements to be moved around.
... the grabber is disabled by default since firefox 64 (bug 1490641).
...And 5 more matches

Slottable - Web APIs
droidfirefox for androidopera for androidsafari on iossamsung internetslottable experimentalchrome full support 53edge full support 79firefox full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...ri full support 10.1webview android full support 53chrome android full support 53firefox android full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...And 5 more matches

ui/button/toggle - Archive of obsolete content
png", "32": "./icon-32.png", "64": "./icon-64.png" }, onchange: handlechange }); var panel = panels.panel({ contenturl: self.data.url("panel.html"), onhide: handlehide }); function handlechange(state) { if (state.checked) { panel.show({ position: button }); } } function handlehide() { button.state('window', {checked: false}); } disabling buttons you can disable a button by setting its disabled property to true.
... a disabled button will not generate click or change events and its icon will appear disabled: updating state you can update all the button's properties, except for its id.
... here's an add-on with a button that disables itself when you click it, but only for the currently active window: var { togglebutton } = require("sdk/ui/button/toggle"); var button = togglebutton({ id: "my-button", label: "my button", icon: { "16": "./firefox-16.png", "32": "./firefox-32.png" }, onclick: disableforthiswindow }); function disableforthiswindow(state) { button.state("window", { disabl...
...And 4 more matches

Setting up an extension development environment - Archive of obsolete content
the -purgecaches command-line flag disables this behavior.
... nglayout.debug.disable_xul_cache = true.
... disables the xul cache so that changes to windows and dialogs do not require a restart.
...And 4 more matches

Broadcasters and Observers - Archive of obsolete content
in addition, if you place the disabled attribute on the command element, any elements hooked up to it will also become disabled automatically.
...we saw something like this in a previous section where the disabled attribute was adjusted once and propagated to other elements.
...for instance, let's say that we want the back action in a browser to be disabled.
...And 4 more matches

colorpicker - Archive of obsolete content
attributes disabled, color, onchange, preference, tabindex, type properties accessibletype, color, disabled, open, tabindex, value examples <colorpicker/> attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 4 more matches

datepicker - Archive of obsolete content
attributes disabled, firstdayofweek, readonly, type, tabindex, value properties date, dateleadingzero, datevalue, disabled, month, monthleadingzero, open, readonly, tabindex, value, year, yearleadingzero examples <datepicker type="grid" value="2007-03-26"/> attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 4 more matches

key - Archive of obsolete content
attributes command, disabled, key, keycode, keytext, modifiers, oncommand, phase examples (example needed) attributes command type: id set to the id of a command element that is being observed by the element.
... disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 4 more matches

keyset - Archive of obsolete content
attributes disabled examples <keyset> <key id="sample-key" modifiers="shift" key="r"/> </keyset> attributes inherited from xul element align, allowevents, allownegativeassertions, class, coalesceduplicatearcs, collapsed, container, containment, context, contextmenu, datasources, dir, empty, equalsize, flags, flex, height, hidden, id, insertafter, insertbefore, left, maxheight, maxwidth, menu, minheight, minwidth, mousethrough, observes, ordinal, orient, pack, persist, popup, position, preference-editable, querytype, ref, removeelement, sortdire...
...ction, sortresource, sortresource2, statustext, style, template, tooltip, tooltiptext, top, uri, wait-cursor, width disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 4 more matches

listhead - Archive of obsolete content
attributes disabled properties acesssibletype, disabled examples (example needed) attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 4 more matches

menu - Archive of obsolete content
attributes acceltext, accesskey, allowevents, command, crop, disabled, image, label, menuactive, open, sizetopopup, tabindex, value properties accessibletype, accesskey, command, control, crop, disabled, image, itemcount, label, labelelement, menupopup, open, parentcontainer, selected, tabindex, value methods appenditem, getindexofitem, getitematindex, insertitemat, removeitemat style classes menu-iconic example <menubar id="sample-menubar"> <menu...
...for example, for a menuitem in a menu you can add the following css rule when you want to use the value none: menupopup > menuitem, menupopup > menu { max-width: none; } disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
...And 4 more matches

richlistitem - Archive of obsolete content
attributes disabled, searchlabel, selected, tabindex, value properties accessible, control, disabled, label, selected, tabindex, value examples (example needed) attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 4 more matches

timepicker - Archive of obsolete content
attributes disabled, hideseconds, increment, readonly, tabindex, value properties amindicator, datevalue, disabled, hideseconds, hour, hourleadingzero, increment, is24hourclock, ispm, minute, minuteleadingzero, pmindicator, readonly, second, secondleadingzero, tabindex, value examples <timepicker value="12:05"/> attributes disabled type: boolean indicates whether the element is disabl...
...if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 4 more matches

Basic native form controls - Learn web development
all basic text controls share some common behaviors: they can be marked as readonly (the user cannot modify the input value but it is still sent with the rest of the form data) or disabled (the input value can't be modified and is never sent with the rest of the form data).
... the following screenshot shows default, focused and disabled text input types in firefox 71 and safari on macos and in chrome 79 and edge 18 on windows 10.
... the following screenshots show default, focused and disabled checkboxes in firefox 71 and safari 13 on macos and chrome 79 and edge 18 on windows 10: note: any checkboxes and radio buttons with the checked attribute on load match the :default pseudo class, even if they are no longer checked.
...And 4 more matches

Advanced Svelte: Reactivity, lifecycle, accessibility - Learn web development
we'll disable the buttons when there are no tasks to be processed.
... to create this we'll receive the todos array as a prop, and set the disabled property of each button accordingly.
...svelte' const dispatch = createeventdispatcher() export let todos let completed = true const checkall = () => { dispatch('checkall', completed) completed = !completed } const removecompleted = () => dispatch('removecompleted') $: completedtodos = todos.filter(t => t.completed).length </script> <div class="btn-group"> <button type="button" class="btn btn__primary" disabled={todos.length === 0} on:click={checkall}>{completed ?
...And 4 more matches

Frame script loading and lifetime
er = this; addeventlistener('unload', function(aevent) { if (aevent.target == gcontentframemessagemanager) { sendasyncmessage('my-addon-id', 'framescript-died'); // if you did not set third argument of `services.mm.addmessagelistener` to `true`, then this will fail to send a message } }, false); note about unload during uninstallation/upgrade when your add-on is uninstalled, or disabled, you should: cancel it, if you have used allowdelayedload, by calling removedelayedframescript; ensuring the frame script is not loaded into any new tabs.
... disable any frame scripts already loaded.
...you need to send a message to your frame scripts, telling them to disable themselves; for example, by undoing any changes they've made or removing any event listeners.
...And 4 more matches

AddonManager
auto update values constant description autoupdate_disable indicates that the add-on should not update automatically.
... pending_disable this add-on will be disabled after the application restarts.
... perm_can_disable this add-on can be disabled.
...And 4 more matches

nsILoginManager
t, in nsidomhtmlinputelement aelement); unsigned long countlogins(in astring ahostname, in astring aactionurl, in astring ahttprealm); boolean fillform(in nsidomhtmlformelement aform); void findlogins(out unsigned long count, in astring ahostname, in astring aactionurl, in astring ahttprealm, [retval, array, size_is(count)] out nsilogininfo logins); void getalldisabledhosts([optional] out unsigned long count, [retval, array, size_is(count)] out wstring hostnames); void getalllogins([optional] out unsigned long count, [retval, array, size_is(count)] out nsilogininfo logins); boolean getloginsavingenabled(in astring ahost); void modifylogin(in nsilogininfo oldlogin, in nsisupports newlogindata); void removealllogins(); ...
... example this method can be called from javascript like this: var logins = myloginmgr.findlogins({}, 'https://bugzilla.mozilla.org', '', '', {}); getalldisabledhosts() returns a list of all hosts for which login saving is disabled.
... void getalldisabledhosts( [optional] out unsigned long count, [retval, array, size_is(count)] out wstring hostnames ); parameters count the number of elements in the returned array.
...And 4 more matches

nsISelectionController
selection_on 2 selection_disabled 3 selection_attention 4 scroll constants constant value description scroll_synchronous 1<<1 if set scrolls the selection into view before returning.
...return value off, on, disabled.
...setcaretenabled() set the caret as enabled or disabled.
...And 4 more matches

WebAssembly.Module - JavaScript
perasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsmodulechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0module() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes note...
...s disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android ful...
...And 4 more matches

ui/button/action - Archive of obsolete content
disabling buttons you can disable a button by setting its disabled property to true.
... a disabled button will not generate click events and its icon will appear disabled: updating state you can update all the button's properties except for its id.
... here's an add-on with a button that disables itself when you click it, but only for the currently active window: var { actionbutton } = require("sdk/ui/button/action"); var button = actionbutton({ id: "my-button", label: "my button", icon: { "16": "./firefox-16.png", "32": "./firefox-32.png" }, onclick: disableforthiswindow }); function disableforthiswindow(state) { button.state("window", { disabl...
...And 3 more matches

Bootstrapped extensions - Archive of obsolete content
when the extension becomes disabled.
...this happens at application launch time, when the extension is enabled after being disabled or after it has been shut down in order to install an update.
...this will be one of app_startup, addon_disable, addon_install, addon_upgrade, or addon_downgrade.
...And 3 more matches

Install Manifests - Archive of obsolete content
this allows your add-on's icon to be displayed even when the add-on is disabled, or if the manifest is missing an iconurl entry.
...this allows your add-on's icon to be displayed even when the add-on is disabled, or if the manifest is missing an icon64url entry.
...moreover, an extension being disabled, even for a short period, leads to a bad experience for the user.
...And 3 more matches

Adding Buttons - Archive of obsolete content
syntax of buttons the button tag has the following syntax: <button id="identifier" class="dialog" label="ok" image="images/image.jpg" disabled="true" accesskey="t"/> the attributes are as follows, all of which are optional: id a unique identifier so that you can identify the button with.
... disabled if this attribute is set to true, the button is disabled.
...if the button is disabled, the function of the button cannot be performed.
...And 3 more matches

listheader - Archive of obsolete content
attributes disabled properties acesssibletype examples <listbox> <listhead> <listheader label="name"/> <listheader label="occupation"/> </listhead> <listitem> <listcell label="george"/> <listcell label="house painter"/> </listitem> <listitem> <listcell label="mary ellen"/> <listcell label="candle maker"/> </listitem> <listitem> <listcell label="roger"/> <listcell label="swashbuckler"/> </listitem> </listbox> attributes disabled type: boolean indicates whether the element is disabled or not.
... if this attribute is set, the element is disabled.
... disabled elements are usually drawn with grayed-out text.
...And 3 more matches

Common Firefox theme issues and solutions - Archive of obsolete content
operating system specific issues windows 7 windows 7 aero missing right-hand title bar buttons when tabs are on top and the menu bar is disabled, firefox is missing the min/max/restore/close button on the right side of the title bar.
... app button not styled on linux, but is styled on windows on linux the firefox app button that is displayed when tabs are on top and menu bar is disabled is not styled properly compared to windows and is not changing colors when in private browsing mode.
... toolbars and menus firefox application button application button doesn't change styling for private browsing mode when in private browsing mode there needs to be a visual difference to the firefox app button that is displayed when tabs are on top and the menu bar is disabled.
...And 3 more matches

Advanced form styling - Learn web development
this can be fixed using our friend appearance: none;, which disables the default aqua appearance: input[type="search"] { -webkit-appearance: none; appearance: none; } in the example below, you can see two identical styled search boxes.
... interestingly, setting border/background on the search field also fixes this problem, as it disables or "breaks" the aqua appearance too.
...an remove the default appearance of a checkbox or radio button altogether with appearance:none; let's take this example html: <form> <fieldset> <legend>fruit preferences</legend> <p> <label> <input type="checkbox" name="fruit-1" value="cherry"> i like cherry </label> </p> <p> <label> <input type="checkbox" name="fruit-2" value="banana" disabled> i can't like banana </label> </p> <p> <label> <input type="checkbox" name="fruit-3" value="strawberry"> i like strawberry </label> </p> </fieldset> </form> now, let's style these with a custom checkbox design.
...And 3 more matches

Configuring Build Options
for example, a mozconfig-dbg: mk_add_options moz_objdir=@topsrcdir@/obj-ff-dbg ac_add_options --enable-debug and a mozconfig-rel-opt: mk_add_options moz_objdir=@topsrcdir@/obj-ff-rel-opt ac_add_options --disable-debug ac_add_options --enable-optimize allow for building both versions by specifiying the configuration via the mozconfig environment variable: $ env mozconfig=/path/to/mozconfig-dbg ./mach build $ env mozconfig=/path/to/mozconfig-rel-opt ./mach build don't forget to set the mozconfig environment variable for the mach run command as well.
... ac_add_options --disable-optimize disables compiler optimization.
... tests ac_add_options --disable-tests by default, many auxiliary test applications are built, which can help debug and patch the mozilla source.
...And 3 more matches

ByteLengthQueuingStrategy - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbytelengthqueuingstrategy experimentalchrome full support 59edge full support 16firefox full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
... webview android full support 59chrome android full support 59firefox android full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
... samsung internet android full support 7.0bytelengthqueuingstrategy() constructor experimentalchrome full support 59edge full support 16firefox full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
...And 3 more matches

CountQueuingStrategy - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcountqueuingstrategy experimentalchrome full support 59edge full support 16firefox full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
... webview android full support 59chrome android full support 59firefox android full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
... samsung internet android full support 7.0countqueuingstrategy() constructor experimentalchrome full support 59edge full support 16firefox full support 57disabled full support 57disabled disabled from version 57: this feature is behind the dom.streams.enabled preference (needs to be set to true) and the javascript.options.streams preference (needs to be set to true).
...And 3 more matches

PaymentAddress.toJSON() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internettojson()chrome full support 61disabled full support 61disabled disabled from version 61: this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.edge full support 15firefox full support 62notes disabled full support 62notes disabled notes available only in nightly builds.
... requires the comma-delineated list in dom.payments.request.supportedregions to contain one or more of the supported 2-character iso locales, currently us and ca.disabled from version 62: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...And 3 more matches

TextTrack.mode - Web APIs
the texttrack interface's mode property is a string specifying and controlling the text track's mode: disabled, hidden, or showing.
... syntax var mode = texttrack.mode; texttrack.mode = "disabled" | "hidden" | "showing"; value a domstring which indicates the track's current mode.
... text track mode constants the text track mode—sometimes identified using the idl enum texttrackmode—must be one of the following values: disabled the text track is currently disabled.
...And 3 more matches

A simple RTCDataChannel sample - Web APIs
first, we have a couple of buttons for establishing and closing the connection: <button id="connectbutton" name="connectbutton" class="buttonleft"> connect </button> <button id="disconnectbutton" name="disconnectbutton" class="buttonright" disabled> disconnect </button> then there's a box which contains the text input box into which the user can type a message to transmit, with a button to send the entered text.
... <div class="messagebox"> <label for="message">enter a message: <input type="text" name="message" id="message" placeholder="message text" inputmode="latin" size=60 maxlength=120 disabled> </label> <button id="sendbutton" name="sendbutton" class="buttonright" disabled> send </button> </div> finally, there's the little box into which we'll insert the messages.
...these handlers can do whatever's needed, but in this example, all we need to do is update the user interface: function handlelocaladdcandidatesuccess() { connectbutton.disabled = true; } function handleremoteaddcandidatesuccess() { disconnectbutton.disabled = false; } the only thing we do here is disable the "connect" button when the local peer is connected and enable the "disconnect" button when the remote peer connects.
...And 3 more matches

ime-mode - CSS: Cascading Style Sheets
/* keyword values */ ime-mode: auto; ime-mode: normal; ime-mode: active; ime-mode: inactive; ime-mode: disabled; /* global values */ ime-mode: inherit; ime-mode: initial; ime-mode: unset; the ime-mode property is only partially and inconsistently implemented in browsers.
... disabled the input method editor is disabled and may not be activated by the user.
...users may correct the inappropriate behavior of sites that don't follow this recommendation by placing the following css into their user stylesheet: input[type=password] { ime-mode: auto !important; } the mac version of gecko 1.9 (firefox 3) can't recover the previous state of the ime when a field for which it is disabled loses focus, so mac users may get grumpy when you use the disabled value.
...And 3 more matches

<fieldset>: The Field Set element - HTML: Hypertext Markup Language
it takes few attributes, the most notable of which are form, which can contain the id of a <form> on the same page, allowing you to make the <fieldset> part of that <form> even if it is not nested inside it, and disabled, which allows you to disable the <fieldset> and all its contents in one go.
... disabled if this boolean attribute is set, all form controls that are descendants of the <fieldset>, are disabled, meaning they are not editable and won't be submitted along with the <form>.
...note that form elements inside the <legend> element won't be disabled.
...And 3 more matches

<input type="button"> - HTML: Hypertext Markup Language
disabling and enabling a button to disable a button, simply specify the disabled global attribute on it, like so: <input type="button" value="disable me" disabled> you can enable and disable buttons at run time by simply setting disabled to true or false.
... in this example our button starts off enabled, but if you press it, it is disabled using button.disabled = true.
... hidden code 1 <input type="button" value="enabled"> const button = document.queryselector('input'); button.addeventlistener('click', disablebutton); function disablebutton() { button.disabled = true; button.value = 'disabled'; window.settimeout(function() { button.disabled = false; button.value = 'enabled'; }, 2000); } if the disabled attribute isn't specified, the button inherits its disabled state from its parent element.
...And 3 more matches

Using Feature Policy - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.
...And 3 more matches

WebAssembly.Memory - JavaScript
perasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsmemorychrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0memory() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes note...
...s disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android ful...
...And 3 more matches

Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
setting hidden="true" disables display of that element.
... disabled while not appropriate for all elements, you can use the disabled attribute to temporarily disable input to an element that is normally operable by the user.
... typically, elements with the disabled="true" attribute will appear as either transparent or pale gray.
...And 2 more matches

MCD, Mission Control Desktop, AKA AutoConfig - Archive of obsolete content
add autoconfig and ldap support in firefox 1.0.x add pref extension (--enable-extensions=pref) and remove --disable-ldap from mozconfig file.
...3-22.fc3) -wall -w -wno-unused -wpointer-arith -wcast-align -wno-long-long -pedantic -pthread -pipe c++ gcc version 3.4.3 20050227 (red hat 3.4.3-22.fc3) -fno-rtti -fno-exceptions -wall -wconversion -wpointer-arith -wcast-align -woverloaded-virtual -wsynth -wno-ctor-dtor-privacy -wno-non-virtual-dtor -wno-long-long -pedantic -fshort-wchar -pthread -pipe -i/usr/x11r6/include configure arguments --disable-mailnews --enable-extensions=cookie,xml-rpc,xmlextras,pref,transformiix,universalchardet,webservices,inspector,gnomevfs,negotiateauth --enable-crypto --disable-composer --enable-single-profile --disable-profilesharing --with-system-jpeg --with-system-zlib --with-system-png --with-pthreads --disable-tests --disable-jsd --disable-installer '--enable-optimize=-os -g -pipe -m32 -march=i386 -mtune=pen...
...tium4' --enable-xft --enable-xinerama --enable-default-toolkit=gtk2 --enable-official-branding --disable-xprint --disable-strip --enable-pango autoconf.js [root@b008-02 /usr/lib/firefox-1.5.0.2] $tail -4 greprefs/autoconf.js // autoconfig jehan pref('general.config.obscure_value', 0); pref('general.config.filename', 'firefox.cfg'); firefox.cfg this file will set the browser home page to the labeleduri page defined in the user's ldap entry, hence it checks that both autoconfig + ldap work fine.
...And 2 more matches

Keyboard Shortcuts - Archive of obsolete content
one additional feature of key definitions is that you can disable them easily.
... to do this add a disabled attribute to the key element and set it to the value true.
... this disables the keyboard shortcut so that it cannot be invoked.
...And 2 more matches

browser - Archive of obsolete content
attributes autocompleteenabled, autocompletepopup, autoscroll, disablehistory, disableglobalhistory, disablesecurity, droppedlinkhandler, homepage, showcaret, src, type properties accessibletype, cangoback, cangoforward, contentdocument, contentprincipal, contenttitle, contentvieweredit, contentviewerfile, contentwindow, currenturi, docshell, documentcharsetinfo, homepage, markupdocumentviewer, messagemanager, preferences, securityui, sessionhistory, webbrowser...
... autoscroll type: boolean set to false to disable autoscroll for this browser.
... disablehistory type: boolean disables both session and global history for the docshell attached to the browser.
...And 2 more matches

Vulnerabilities - Archive of obsolete content
examples of settings are an operating system offering access to control lists that set the privileges that users have for files, and an application offering a setting to enable or disable the encryption of sensitive data stored by the application.
... there may also be confusion regarding misuse vulnerabilities for features that can be enabled or disabled—in a way, configured—versus security configuration issues.
... the key difference is that for a misuse vulnerability, the configuration setting enables or disables the entire feature and does not specifically alter just its security; for a security configuration issue vulnerability, the configuration setting alters only the software’s security.
...And 2 more matches

XForms Custom Controls - Archive of obsolete content
since firefox 4, xbl and xul are disabled by default for all pages not loaded from a chrome:// url.
...for example, you might want to render images that are held inside an instance document or you would like to show a disabled trigger when its bound node becomes irrelevant rather than having it not display (the current default behavior).
... */ boolean focus(); /** * is called when control should be disabled.
...And 2 more matches

Benchmarking
debug builds debug builds (--enable-debug) and non-optimized builds (--disable-optimize) are much slower.
...the poisoning can be disabled by setting the environment variable jsgc_disable_poisoning=1 before starting the browser.
...(this may be disabled for many situations in the future.
...And 2 more matches

Debugging on Windows
disabling assertions there are basically two ways to disable assertions.
... environment variable there is an environment variable that can disable breaking for assertions.
...one way to view it is simply to disable e10s (./mach run --disable-e10s) but in order to debug with e10s enabled one can run ./mach run ...
...And 2 more matches

Investigating leaks using DMD heap scan mode
the build is going to be very slow, so you may need to disable some shutdown checks.
... the command you need to run firefox will look something like this: xpcom_mem_bloat_log=1 moz_cc_log_shutdown=1 moz_disable_content_sandbox=t moz_cc_log_directory=$logdir moz_cc_log_process=content moz_cc_log_thread=main moz_dmd_shutdown_log=$logdir moz_dmd_log_process=tab ./mach run --dmd --mode=scan breaking this down: xpcom_mem_bloat_log=1: this reports a list of the counts of every object created and destroyed and tracked by the xpcom leak tracking system.
...creating this log during shutdown is nice because there are less things unrelated to the leak in the log, and various cycle collector optimizations are disabled.
...And 2 more matches

sslerr.html
ssl_error_post_warning -12275 (unused) ssl_error_ssl2_disabled -12274 "peer only supports ssl version 2, which is locally disabled." the remote server has asked to use ssl version 2, and ssl version 2 is disabled in the local client's configuration.
... ssl_error_ssl_disabled -12268 "cannot connect: ssl is disabled." the local socket is configured in such a way that it cannot use any of the ssl cipher suites.
... possible causes include: (a) both ssl2 and ssl3 are disabled, (b) all the individual ssl cipher suites are disabled, or (c) the socket is configured to handshake as a server, but the certificate associated with that socket is inappropriate for the key exchange algorithm selected.
...And 2 more matches

nsIDOMWindowUtils
nts(); pruint32 comparecanvases(in nsidomhtmlcanvaselement acanvas1, in nsidomhtmlcanvaselement acanvas2, out unsigned long amaxdifference); double computeanimationdistance(in nsidomelement element, in astring property, in astring value1, in astring value2); nsicompositionstringsynthesizer createcompositionstringsynthesizer(); obsolete since gecko 38.0 void disablenontestmouseevents(in boolean adisable); boolean dispatchdomeventviapresshell(in nsidomnode atarget, in nsidomevent aevent, in boolean atrusted); nsidomelement elementfrompoint(in float ax, in float ay, in boolean aignorerootscrollframe, in boolean aflushlayout); void entermodalstate(); nsidomelement findelementwithviewid(in nsviewid aid); void foc...
...lta_y_positive 0x0200 wheel_event_expected_overflow_delta_y_negative 0x0400 mousescroll_prefer_widget_at_point 1 mousescroll_scroll_lines 2 mousescroll_win_scroll_lparam_not_null 65536 touch_hover 1 touch_contact 2 touch_remove 4 touch_cancel 8 ime_status_disabled 0 users cannot use ime at all.
... this state is not the same as ime-mode: disabled.
...And 2 more matches

The HTML DOM API - Web APIs
javascript const namefield = document.getelementbyid("username"); const sendbutton = document.getelementbyid("sendbutton") sendbutton.disabled = true; // [note: this is disabled since it causes this article to always load with this example focused and scrolled into view] //namefield.focus(); namefield.addeventlistener("input", event => { const elem = event.target; const valid = elem.value.length != 0; if (valid && sendbutton.disabled) { sendbutton.disabled = false; } else if (!valid && !sendbutton.disabled) { sendbutt...
...on.disabled = true; } }); this code uses the document interface's getelementbyid() method to get the dom object representing the <input> elements whose ids are username and sendbutton.
... the htmlinputelement object for the "send" button's disabled property is set to true, which disables the "send" button so it can't be clicked.
...And 2 more matches

Signaling and video calling - Web APIs
this requires video elements, and a button to hang up the call: <div class="flexchild" id="camera-container"> <div class="camera-box"> <video id="received_video" autoplay></video> <video id="local_video" autoplay muted></video> <button id="hangup-button" onclick="hangupcall();" disabled> hang up </button> </div> </div> the page structure defined here is using <div> elements, giving us full control over the page layout by enabling the use of css.
... finally, the "hangup-button" <button>, to disconnect from a call, is defined and configured to start disabled (setting this as our default for when no call is connected) and apply the function hangupcall() on click.
...in our example, we add the track's stream to the <video> element that displays the incoming video: function handletrackevent(event) { document.getelementbyid("received_video").srcobject = event.streams[0]; document.getelementbyid("hangup-button").disabled = false; } the incoming stream is attached to the "received_video" <video> element, and the "hang up" <button> element is enabled so the user can hang up the call.
...And 2 more matches

-moz-user-input - CSS: Cascading Style Sheets
/* keyword values */ -moz-user-input: none; -moz-user-input: enabled; -moz-user-input: disabled; /* global values */ -moz-user-input: inherit; -moz-user-input: initial; -moz-user-input: unset; for elements that normally take user input, such as a <textarea>, the initial value of -moz-user-input is enabled.
... disabled the element does not accept user input.
... however, this is not the same as setting disabled to true, in that the element is drawn normally.
...And 2 more matches

Box-shadow generator - CSS: Cascading Style Sheets
ack_container"></div> </div> <div id="preview_zone"> <div id="layer_menu" class="col span_12"> <div class="button" id="element" data-type="subject" data-title="element"> element </div> <div class="button" id="before" data-type="subject" data-title=":before"> :before <span class="delete" data-type="disable"></span> </div> <div class="button" id="after" data-type="subject" data-title=":after"> :after <span class="delete" data-type="disable"></span> </div> <div class="ui-checkbox" data-topic='before' data-label=":before"></div> <div class="ui-checkbox" data-topic='after' data-label=...
... helvetica, sans-serif; line-height: 1.5em; color: #fff; -moz-user-select: none; -webkit-user-select: none; -ms-user-select: none; user-select: none; } .ui-checkbox > input { display: none; } .ui-checkbox > label { font-size: 12px; padding: 0.333em 1.666em 0.5em; height: 1em; line-height: 1em; background-color: #888; background-image: url("https://mdn.mozillademos.org/files/5683/disabled.png"); background-position: center center; background-repeat: no-repeat; color: #fff; border-radius: 3px; font-weight: bold; float: left; } .ui-checkbox .text { padding-left: 34px; background-position: center left 10px; } .ui-checkbox .left { padding-right: 34px; padding-left: 1.666em; background-position: center right 10px; } .ui-checkbox > label:hover { cursor: pointer; } .ui-...
...); slidermanager.setvalue("top", active.top); slidermanager.setvalue("left", active.left); slidermanager.setvalue("rotate", active.rotate); slidermanager.setvalue("z-index", active.zindex); slidermanager.setvalue("width", active.width); slidermanager.setvalue("height", active.height); buttonmanager.setvalue("border-state", active.border); active.updateshadows(); } var disableclass = function disableclass(topic) { classes[topic].toggledisplay(false); buttonmanager.setvalue(topic, false); } var addshadow = function addshadow(position) { if (animate === true) return -1; active.shadows.splice(position, 0, new shadow()); active.render.splice(position, 0, null); } var swapshadow = function swapshadow(id1, id2) { var x = active.shadows[id1]; ...
...And 2 more matches

<select>: The HTML Select element - HTML: Hypertext Markup Language
it also accepts most of the general form input attributes such as required, disabled, autofocus, etc.
... disabled this boolean attribute indicates that the user cannot interact with the control.
... if this attribute is not specified, the control inherits its setting from the containing element, for example <fieldset>; if there is no containing element with the disabled attribute set, then the control is enabled.
...And 2 more matches

Feature-Policy: fullscreen - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.
...And 2 more matches

Feature-Policy: geolocation - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.
...And 2 more matches

Link prefetching FAQ - HTTP
is there a preference to disable link prefetching?
... yes, there is a hidden preference that you can set to disable link prefetching.
... add this line to your prefs.js file located in your profile directory (or make the appropriate change via about:config): user_pref("network.prefetch-next", false); however, the theory is that if link prefetching needs to be disabled then there must be something wrong with the implementation.
...And 2 more matches

WebAssembly.Instance - JavaScript
rasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsinstancechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0instance() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes no...
...tes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android f...
...And 2 more matches

Modifying a XUL Interface - Archive of obsolete content
common properties that you will manipulate include the label, value, checked and disabled properties.
...changing a element disabled or enabled it is common to disable particular fields that don't apply in a given situation.
...example 7 : source view <script> function updatestate(){ var name = document.getelementbyid("name"); var sindex = document.getelementbyid("group").selectedindex; name.disabled = sindex == 0; } </script> <radiogroup id="group" onselect="updatestate();"> <radio label="random name" selected="true"/> <hbox> <radio label="specify a name:"/> <textbox id="name" value="jim" disabled="true"/> </hbox> </radiogroup> in this example a function updatestate() is called whenever a select event is fired on the radio group.
...if the first radio button is selected (index of 0), the textbox is enabled by setting its disabled property to true.

More Wizards - Archive of obsolete content
in some cases, it would be more convenient to disable the next button until valid input has been entered.
...if set to false, the next button is disabled.
...ecretcode').value == "cabbage"); } </script> <wizardpage onpageshow="checkcode(); return true;"> <label value="enter the secret code:"/> <textbox id="secretcode" onkeyup="checkcode();"/> </wizardpage> <wizardpage> <label value="that is the correct secret code."/> </wizardpage> </wizard> there is also a corresponding canrewind property that you can use to enable or disable the back button.
...thus, the back button will be disabled on the first page so you don't have to set it yourself.

Introduction to SSL - Archive of obsolete content
administrators can enable or disable any of the supported cipher suites for both clients and servers.
... note: firefox 2 ships with ssl 2.0 support disabled by default, in favor of ssl 3.0.
... some organizations may want to disable the weaker ciphers to prevent ssl connections with weaker encryption.
... however, since 40-bit ciphers can be broken relatively quickly, administrators whose user communities can use stronger ciphers without violating export restrictions should disable the 40-bit ciphers if they are concerned about access to data by eavesdroppers.

Common causes of memory leaks in extensions - Extensions
all zombie compartments in extensions are caused by a failure to release resources appropriately in certain circumstances, such as when a window is closed, a page unloads, or an extension is disabled or removed.
...another solution would be to use the setinterval()/settimeout() instances content windows provide, but there is a big drawback with this idea: if the user disables javascript globally or locally (such as by using an add-on like noscript), then using the content window functions won't work.
... failing to clean up event listeners extensions can be disabled and removed by user actions, but it also happens when an add-on is updated.
... if a bootstrapped (restartless) extension fails to clean up event listeners when disabled or removed, the listeners will still reference the enclosing scope — usually the bootstrap.js sandbox — and therefore keep that scope (and its enclosing compartment) alive until the window is unloaded.

A first splash into JavaScript - Learn web development
undcolor = 'red'; if(userguess < randomnumber) { loworhi.textcontent = 'last guess was too low!' ; } else if(userguess > randomnumber) { loworhi.textcontent = 'last guess was too high!'; } } guesscount++; guessfield.value = ''; } guesssubmit.addeventlistener('click', checkguess); function setgameover() { guessfield.disabled = true; guesssubmit.disabled = true; resetbutton = document.createelement('button'); resetbutton.textcontent = 'start new game'; document.body.append(resetbutton); resetbutton.addeventlistener('click', resetgame); } function resetgame() { guesscount = 1; const resetparas = document.queryselectorall('.resultparas p'); for(let i = 0 ; i < re...
...setparas.length ; i++) { resetparas[i].textcontent = ''; } resetbutton.parentnode.removechild(resetbutton); guessfield.disabled = false; guesssubmit.disabled = false; guessfield.value = ''; guessfield.focus(); lastresult.style.backgroundcolor = 'white'; randomnumber = math.floor(math.random() * 100) + 1; } </script> </body> </html> have a go at playing it — familiarize yourself with the game before you move on.
...add this now, below the rest of your javascript: function setgameover() { guessfield.disabled = true; guesssubmit.disabled = true; resetbutton = document.createelement('button'); resetbutton.textcontent = 'start new game'; document.body.append(resetbutton); resetbutton.addeventlistener('click', resetgame); } the first two lines disable the form text input and button by setting their disabled properties to true.
...add the following code, again to the bottom of your javascript: function resetgame() { guesscount = 1; const resetparas = document.queryselectorall('.resultparas p'); for (let i = 0 ; i < resetparas.length ; i++) { resetparas[i].textcontent = ''; } resetbutton.parentnode.removechild(resetbutton); guessfield.disabled = false; guesssubmit.disabled = false; guessfield.value = ''; guessfield.focus(); lastresult.style.backgroundcolor = 'white'; randomnumber = math.floor(math.random() * 100) + 1; } this rather long block of code completely resets everything to how it was at the start of the game, so the player can have another go.

Starting our Svelte Todo list app - Learn web development
</label> </h2> <input type="text" id="todo-0" autocomplete="off" class="input input__lg" /> <button type="submit" disabled="" class="btn btn__primary btn__lg"> add </button> </form> <!-- filter --> <div class="filters btn-group stack-exception"> <button class="btn toggle-btn" aria-pressed="true"> <span class="visually-hidden">show</span> <span>all</span> <span class="visually-hidden">tasks</span> </button> <button class="btn toggle-btn" aria-pressed="false"> <span...
... if you want to globally disable this warning you can add this onwarn handler to your rollup.config.js file inside the configuration for the svelte plugin, like this: plugins: [ svelte({ dev: !production, css: css => { css.write('public/build/bundle.css'); }, // warnings are normally passed straight to rollup.
... note: you should only disable these warnings if you have good reasons to do so, for example while building a quick prototype.
...r; text-transform: capitalize; } .btn.toggle-btn { border-width: 1px; border-color: #d3d3d3; } .btn.toggle-btn[aria-pressed="true"] { text-decoration: underline; border-color: #4d4d4d; } .btn__danger { color: #fff; background-color: #ca3c3c; border-color: #bd2130; } .btn__filter { border-color: lightgrey; } .btn__primary { color: #fff; background-color: #000; } .btn__primary:disabled { color: darkgrey; background-color:#565656; } .btn-group { display: flex; justify-content: space-between; } .btn-group > * { flex: 1 1 49%; } .btn-group > * + * { margin-left: 0.8rem; } .label-wrapper { margin: 0; flex: 0 0 100%; text-align: center; } .visually-hidden { position: absolute !important; height: 1px; width: 1px; overflow: hidden; clip: rect(1px 1px 1px 1...

Handling common accessibility problems - Learn web development
note: accessibility is morally the right thing to do, and good for business (numbers of disabled users, users on mobile devices, etc.
... safari: select develop > disable styles from the main menu (to enable the develop menu, choose safari > preferences > advanced > show develop menu in menu bar).
...click the gear icon that will appear, then select css > disable all styles.
... to deal with complex form widgets, you need to use aria attributes like roles to state what role different elements have in a widget (for example, are they a tab, or a tab panel?), aria-disabled to say whether a control is disabled or not, etc.

Eclipse CDT
using this plugin will result in parts of the ui described below being hidden or disabled.
...the alternative is to leave that option disabled and update the index manually as necessary.
...in the window that opens enter the path to your firefox binary (something like {your-obj-dir}/dist/nightlydebug.app/contents/macos/firefox) and select "disable auto build".
...one suggested configuration for building gdb is '--prefix="$home" --disable-debug --with-python=/usr' (create an optimized build with support for python (so that you can use python to much better control when you break etc.), and install it in $home/bin).

Gecko Logging
log level numeric value purpose mozilla logging levels disabled 0 indicates logging is disabled.
... by default all logging output is disabled.
... note: this option disables 'append' and forces 'timestamp'.
... it is common for debug and trace to be disabled at compile time in release builds, so you may need a debug build if you want logs from those levels.

Addon
nteger reason, in string appversion, in string platformversion) overview of optional methods void uninstall() void canceluninstall() boolean hasresource(in string path) nsiuri getresourceuri(in string path) void getdatadirectory(in datadirectorycallback callback) required properties attribute type description appdisabled read only boolean true if this add-on cannot be used in the application based on version compatibility, dependencies, and blocklisting.
...for some add-ons this will change immediately based on the appdisabled and userdisabled properties; for others it will only change after an application restart.
...operations my be restricted based on system policies (e.g., the system administrator may not allow certain add-ons to be uninstalled), add-on type (e.g., themes may not be disabled), or add-on state (e.g., an incompatible add-on cannot be enabled).
... userdisabled boolean true if the user wants this add-on to be disabled.

AddonListener
method overview void onenabling(in addon addon, in boolean needsrestart) void onenabled(in addon addon) void ondisabling(in addon addon, in boolean needsrestart) void ondisabled(in addon addon) void oninstalling(in addon addon, in boolean needsrestart) void oninstalled(in addon addon) void onuninstalling(in addon addon, in boolean needsrestart) void onuninstalled(in addon addon) void onoperationcancelled(in addon addon) void onpropertychanged(in addon addon, in string properties[]) methods onenabling() calle...
... void onenabled( in addon addon, ) parameters addon the addon that has been enabled ondisabling() called when an add-on is about to be disabled.
... void ondisabling( in addon addon, in boolean needsrestart ) parameters addon the addon that is being disabled needsrestart true if an application restart is necessary for the change to take effect ondisabled() called when an add-on has been disabled.
... void ondisabled( in addon addon, ) parameters addon the addon that has been disabled oninstalling() called when an add-on is about to be installed.

NSS 3.14 release notes
he following new features: support for tls 1.1 (rfc 4346) experimental support for dtls 1.0 (rfc 4347) and dtls-srtp (rfc 5764) support for aes-ctr, aes-cts, and aes-gcm support for keying material exporters for tls (rfc 5705) in addition to the above new features, the following major changes have been introduced: support for certificate signatures using the md5 hash algorithm is now disabled by default.
... export and des cipher suites are disabled by default.
...note that ssl cipher suites with "md5" in their names are not disabled by this change; those cipher suites use hmac-md5, not plain md5, and are still considered safe.
...the old options to disable ssl 2, ssl 3 and tls 1.0 have been removed and replaced with a new -v option that specifies the enabled range of protocol versions (see usage output of those tools).

NSS functions
dress mxr 3.2 and later cert_getcertificatenames mxr 3.10 and later cert_getcertificaterequestextensions mxr 3.10 and later cert_getcertissuerandsn mxr 3.2 and later cert_getcertnicknames mxr 3.2 and later cert_getcerttrust mxr 3.2 and later cert_getcertuid mxr 3.2 and later cert_getclassicocspdisabledpolicy mxr 3.12 and later cert_getclassicocspenabledhardfailurepolicy mxr 3.12 and later cert_getclassicocspenabledsoftfailurepolicy mxr 3.12 and later cert_getcommonname mxr 3.2 and later cert_getcountryname mxr 3.2 and later cert_getdbcontentversion mxr 3.2 and later cert_getdefaultcertdb mxr 3.2 and...
...m mxr 3.2 and later pk11_getblocksize mxr 3.2 and later pk11_getcertfromprivatekey mxr 3.9.3 and later pk11_getcurrentwrapindex mxr 3.2 and later pk11_getdefaultarray mxr 3.8 and later pk11_getdefaultflags mxr 3.8 and later pk11_getdisabledreason mxr 3.8 and later pk11_getfirstsafe mxr 3.2 and later pk11_getinternalkeyslot mxr 3.2 and later pk11_getinternalslot mxr 3.2 and later pk11_getkeygen mxr 3.4 and later pk11_getkeylength mxr 3.2 and later pk11_getkeystrength ...
...yinfo mxr 3.2 and later pk11_importprivatekeyinfoandreturnkey mxr 3.4 and later pk11_importpublickey mxr 3.4 and later pk11_importsymkeywithflags mxr 3.4 and later pk11_initpin mxr 3.2 and later pk11_isfips mxr 3.2 and later pk11_isdisabled mxr 3.4 and later pk11_isfriendly mxr 3.2 and later pk11_ishw mxr 3.2 and later pk11_isinternal mxr 3.2 and later pk11_ispresent mxr 3.2 and later pk11_isreadonly mxr 3.2 and later pk11_isremovable mxr 3.12 and later ...
...r 3.9.2 and later pk11_unwrapsymkey mxr 3.2 and later pk11_unwrapsymkeywithflags mxr 3.2 and later pk11_unwrapsymkeywithflagsperm mxr 3.9 and later pk11_updateslotattribute mxr 3.8 and later pk11_userenableslot mxr 3.8 and later pk11_userdisableslot mxr 3.8 and later pk11_verify mxr 3.2 and later pk11_verifykeyok mxr 3.2 and later pk11_waitfortokenevent mxr 3.7 and later pk11_wrapsymkey mxr 3.2 and later pk11_writerawattribute mxr 3.12 and later pk11sdr_encrypt mxr ...

NSS_3.12.3_release_notes.html
nss_strict_nofork string ("1", "disabled", or any other non-empty value) it is an error to try to use a pkcs#11 crypto module in a process before it has been initialized in that process, even if the module was initialized in the parent process.
... if set to "disabled", softoken will ignore forks, and behave as it did in older versions.
... bug 478931: object leak in pkix_list_mergelists function bug 478994: allow softoken's fork check to be disabled bug 479029: ocsp response signature cert found invalid if issuer is trusted only for ssl bug 479601: wrong type (utf8 string) for email addresses in subject by cert_asciitoname bug 480142: use sizeof on the correct type of ckc_x509 in lib/ckfw bug 480257: ocsp fails when response > 1k byte bug 480280: the cka_ec_point pkcs#11 attribute is encoded in the wrong way: missing encapsulating...
... bug 483113: add environment variable to disable/enable hash algorithms in cert/crl signatures bug 483168: nss callback api for looking up a default ocsp responder url bug 483963: assertion failure in ocsp tests.

Shumway
it is currently available as an extension and as a component in firefox's nightly builds that can be enabled through about:config (you need to find the shumway.disabled preference and set it to false).
... the user has adobe flash player disabled (or set to "click-to-enable") for performance or security reasons.
...users who disable flash because of security or performance concerns can still see content through shumway because it cannot be forced to behave worse than javascript (and webgl, etc.) allows.
...several buttons are available at the bottom of the screen to enable or disable various shumway options.

Introduction to the JavaScript shell
(default if no filename is provided.) --no-ion disables the optimizing jit compiler.
... --no-baseline disables the baseline jit compiler.
... -w, --nowarnings disables warning messages.
...by sealing an object or object graph, you disable modification of those objects.

Observer Notifications
em-action-requested item-disabled an addon has been disabled.
... topic data description passwordmgr-found-form noautofillforms a login is available for this form, but autofill of forms is disabled, so the form was not automatically filled out.
... passwordmgr-found-form autocompleteoff a login is available for this form, but autocomplete is disabled.
... passwordmgr-storage-changed hostsavingdisabled host saving has been disabled.

UI Tour - Firefox Developer Tools
a settings menu that contains: disable javascript: disables javascript for this tab.
... this option enables you to see how your web page looks if the user has disabled javascript via an extension or a configuration setting.
...next to each breakpoint is a checkbox which you can use to enable/disable it: watch expressions you can add watch expressions in the right pane.
...when grouping is enabled, the menu option changes to disable framework grouping.

Settings - Firefox Developer Tools
disable http cache disable the browser http cache to simulate first-load performance in all tabs that have the toolbox open.
... this setting persists, meaning that if it is set, caching will be disabled whenever you reopen the devtools.
... note that this option was called "disable cache" in firefox versions previous to 49, but it was renamed to make it clearer that this affects the http cache, and not service workers/the cache api.
... disable javascript reload the current tab with javascript disabled.

The JavaScript input interpreter - Firefox Developer Tools
you get autocomplete suggestions for array elements, as well: you can enable or disable autocompletion via the settings ("gear") menu in the web console toolbar.
... the menuitem enable autocompletion has a checkmark next to it when the feature is enabled, which is missing when it is disabled.
... you can enable or disable instant evaluation via the settings ("gear") menu in the web console toolbar.
... the menuitem instant evaluation has a checkmark next to it when the feature is enabled, which is missing when it is disabled.

Document.enableStyleSheetsForSet() - Web APIs
enables the style sheets matching the specified name in the current style sheet set, and disables all other style sheets (except those without a title, which are always enabled).
...all style sheets with a title that match this name will be enabled, while all others that have a title will be disabled.
... specify an empty string for the name parameter to disable all alternate and preferred style sheets (but not the persistent style sheets; that is, those with no title attribute).
... calling this method with a null name has no effect; if you want to disable all alternate and preferred style sheets, you must pass "", the empty string.

Guide to the Fullscreen API - Web APIs
≤79 full support ≤79 full support ≤79alternate name alternate name uses the non-standard name: webkitisfullscreenfirefox full support 64 full support 64 no support 49 — 65disabled disabled from version 49 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).
... 71 full support 71 full support 18alternate name alternate name uses the non-standard name: webkitisfullscreenfirefox android full support 64 full support 64 no support 49 — 65disabled disabled from version 49 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).
...pport 45 full support yesprefixed prefixed implemented with the vendor prefix: webkitedge full support 12firefox full support 64 full support 64 no support 47 — 65disabled disabled from version 47 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).
...t 45 full support 45 full support yesprefixed prefixed implemented with the vendor prefix: webkitfirefox android full support 64 full support 64 no support 47 — 65disabled disabled from version 47 until version 65 (exclusive): this feature is behind the full-screen-api.unprefix.enabled preference (needs to be set to true).

HTMLSlotElement.name - Web APIs
or androidfirefox for androidopera for androidsafari on iossamsung internetname experimentalchrome full support 53edge full support 79firefox full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...ri full support 10.1webview android full support 53chrome android full support 53firefox android full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).

Capabilities, constraints, and settings - Web APIs
determining if a constraint is supported if you need to know whether or not a given constriant is supported by the user agent, you can find out by calling navigator.mediadevices.getsupportedconstraints() to get a list of the constrainable properties which the browser knows, like this: let supported = navigator.mediadevices.getsupportedconstraints(); document.getelementbyid("framerateslider").disabled = !supported["framerate"]; in this example, the supported constraints are fetched, and a control that lets the user configure the frame rate is disabled if the framerate constraint isn't supported.
...upportedconstraints"> </ul> <div id="startbutton" class="button"> start </div> <div class="wrapper"> <div class="trackrow"> <div class="leftside"> <h3>requested video constraints:</h3> <textarea id="videoconstrainteditor" cols=32 rows=8></textarea> </div> <div class="rightside"> <h3>actual video settings:</h3> <textarea id="videosettingstext" cols=32 rows=8 disabled></textarea> </div> </div> <div class="trackrow"> <div class="leftside"> <h3>requested audio constraints:</h3> <textarea id="audioconstrainteditor" cols=32 rows=8></textarea> </div> <div class="rightside"> <h3>actual audio settings:</h3> <textarea id="audiosettingstext" cols=32 rows=8 disabled></textarea> </div> </div> <div class="button" id="a...
... videosettingstext a <textarea> (which is always disabled) that displays the current settings for the video track's constrainable properties.
... audiosettingstext a <textarea> (which is always disabled) that displays the current settings for the audio track's constrainable properties.

Slottable: assignedSlot - Web APIs
idfirefox for androidopera for androidsafari on iossamsung internetassignedslot experimentalchrome full support 53edge full support 79firefox full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...ri full support 10.1webview android full support 53chrome android full support 53firefox android full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).

WebGLRenderingContext - Web APIs
webglrenderingcontext.colormask() sets which color components to enable or to disable when drawing or rendering to a webglframebuffer.
... webglrenderingcontext.depthmask() sets whether writing into the depth buffer is enabled or disabled.
... webglrenderingcontext.disable() disables specific webgl capabilities for this context.
... uniforms and attributes webglrenderingcontext.disablevertexattribarray() disables a vertex attribute array at a given position.

Window.customElements - Web APIs
e for androidfirefox for androidopera for androidsafari on iossamsung internetcustomelementschrome full support 54edge full support 79firefox full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.customelements.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.customelements.enabled preference (needs to be set to true).
...ri full support 10.1webview android full support 54chrome android full support 54firefox android full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.customelements.enabled preference (needs to be set to true).
...— 59disabled disabled until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.customelements.enabled preference (needs to be set to true).

@supports - CSS: Cascading Style Sheets
chrome for androidfirefox for androidopera for androidsafari on iossamsung internet@supportschrome full support 28edge full support 12firefox full support 22 full support 22 no support 17 — 22disabled disabled from version 17 until version 22 (exclusive): this feature is behind the layout.css.supports-rule.enabled preference (needs to be set to true).
...ri full support 9webview android full support ≤37chrome android full support 28firefox android full support 22 full support 22 no support 17 — 22disabled disabled from version 17 until version 22 (exclusive): this feature is behind the layout.css.supports-rule.enabled preference (needs to be set to true).
...ndroid full support 1.5selector()chrome full support 83edge full support 83firefox full support 69 full support 69 full support 64disabled disabled from version 64: this feature is behind the layout.css.supports-selector.enabled preference (needs to be set to true).
... 69safari no support nonotes no support nonotes notes see bug 199237webview android full support 83chrome android full support 83firefox android full support 64disabled full support 64disabled disabled from version 64: this feature is behind the layout.css.supports-selector.enabled preference (needs to be set to true).

CSS Scrollbars - CSS: Cascading Style Sheets
idfirefox for androidopera for androidsafari on iossamsung internetscrollbar-widthchrome no support noedge no support nofirefox full support 64 full support 64 full support 63disabled disabled from version 63: this feature is behind the layout.css.scrollbar-width.enabled preference (needs to be set to true).
... no support nowebview android no support nochrome android no support nofirefox android full support 64 full support 64 full support 63disabled disabled from version 63: this feature is behind the layout.css.scrollbar-width.enabled preference (needs to be set to true).
... full support 63disabled disabled from version 63: this feature is behind the layout.css.scrollbar-color.enabled preference (needs to be set to true).
... no support nowebview android no support nochrome android no support nofirefox android full support 64 full support 64 full support 63disabled disabled from version 63: this feature is behind the layout.css.scrollbar-color.enabled preference (needs to be set to true).

Linear-gradient Generator - CSS: Cascading Style Sheets
ng: 3px 0; display: table; } #controls .property > * { float: left; } #controls .property .name { width: 90px; padding: 0px 10px 0px 0px; text-align: right; line-height: 150%; } /* button */ #controls .button { height: 24px; padding: 0 10px; background-color: #379b4a; border-radius: 3px; font-size: 14px; color: #fff; display: inline; float: left; } #controls .button[data-state='disabled'] { background-color: #ccc !important; color: #777 !important; } #controls .button[data-state='disabled']:hover { background-color: #ccc !important; cursor: default !important; } #controls .button:hover { cursor: pointer; background-color: #208b20; } /* active point */ .ui-input-slider { height: 24px; line-height: 20px; } #delete-point { margin: 0 58px 0 0; float: right !importan...
...tiveaxis.setunit(obj.value); }; var setaddaxisbutton = function setaddaxisbutton() { add_axis_btn = getelembyid('add-axis'); add_axis_btn.addeventlistener('click', function() { if (lg_axes.length === 4) return; createaxis(0); if (lg_axes.length > 1) delete_axis_btn.removeattribute('data-state'); if (lg_axes.length === 4) this.setattribute('data-state', 'disabled'); }); }; var setdeleteaxisbutton = function setdeleteaxisbutton() { delete_axis_btn = getelembyid('delete-axis'); delete_axis_btn.addeventlistener('click', function () { if (this.hasattribute('data-state')) return; if (lg_axes.length === 1) return; axes_menu.removechild(activeaxis.shortcut); activeaxis.deleteaxis(); lg_axes.splice(getorderid(activeax...
...is.id), 1); activeaxis = null; updatecssgradient(); var len = lg_axes.length; for (var i=0; i<len; '="" '');="" ');="" ';';="" 'both',="" 'disabled')="" 'disabled');="" 'px';="" ()="" (delete_point_btn)="" (lg_axes.length="" (this.getattribute('data-state')="==" (update_output)="" *="" **="" +="" ++i)="" 4)="" 500);="" :="" <="" activeaxis.deleteactivepoint();="" activeaxis.updatepointcolor(color);="" activeaxis.updatepointposition(color);="" add_axis_btn.removeattribute('data-state');="" axes_menu="getelembyid('gradient-axes');" axesmanager.init();="" box="" button="getelembyid('canvas-bg');" button.addeventlistener('click',="" code="prefix" container="" container.setattribute('data-alpha',="" container;="" createstartaxis(-18);="" createstartaxis(18);="" delete_point_btn="gete...
...t.children[index].style.height="output.children[index].children[1].scrollheight" output;="" point="" pre="" prefix)="" resizecontainer="function" resizecontainer()="" resizecontainer);="" resizecontainer,="" resizeend="function" resizeend()="" resizeend);="" return="" return;="" setaddaxisbutton();="" setaxisunit);="" setdeleteaxisbutton();="" setdeletebuttonstate="function" setdeletebuttonstate('disabled');="" setdeletebuttonstate(state)="" setdeletepointbutton="function" setdeletepointbutton()="" setdeletepointbutton();="" settogglealphabackground="function" settogglealphabackground()="" settogglealphabackground();="" slidermanager.init();="" slidermanager.subscribe('axis-rotation',="" state="true;" state);="" this.setattribute('data-alpha',="" this.setattribute('data-state',="" tool="" tool()=...

font-size-adjust - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetfont-size-adjustchrome full support 43disabled full support 43disabled disabled from version 43: this feature is behind the enable experimental web platform features preference.
... to change preferences in chrome, visit chrome://flags.edge full support 79disabled full support 79disabled disabled from version 79: this feature is behind the enable experimental web platform features preference.firefox full support 40 full support 40 full support 3notes notes before firefox 40, font-size-adjust: 0 was incorrectly interpreted as font-size-adjust: none (bug 1144885).
... full support 1notes notes before firefox 3, font-size-adjust was supported on windows only.ie no support noopera full support 30disabled full support 30disabled disabled from version 30: this feature is behind the enable experimental web platform features preference.safari no support nowebview android no support nochrome android full support 43disabled full support 43disabled disabled from version 43: this feature is behind the enable exper...
...to change preferences in chrome, visit chrome://flags.firefox android full support 4opera android full support 30disabled full support 30disabled disabled from version 30: this feature is behind the enable experimental web platform features preference.safari ios no support nosamsung internet android no support nolegend full support full support no support no supportsee implementation notes.see impl...

Guide to scroll anchoring - CSS: Cascading Style Sheets
what if i need to disable it?
... the specification provides a new property, overflow-anchor, which can be used to disable scroll anchoring on all or part of the document.
... suppression triggers the specification also details some suppression triggers, which will disable scroll anchoring in places where it might be problematic.
... these suppression triggers are changes to the computed value of any of the following properties: top, left, right, or bottom margin or padding any width or height-related properties transform additionally, position changes anywhere inside the scrolling box also disable scroll anchoring.

touch-action - CSS: Cascading Style Sheets
applications using touch events disable the browser handling of gestures by calling preventdefault(), but should also use touch-action to ensure the browser knows the intent of the application before any event listeners have been invoked.
... none disable browser handling of all panning and zooming gestures.
... manipulation enable panning and pinch zoom gestures, but disable additional non-standard gestures such as double-tap to zoom.
...al definition initial valueautoapplies toall elements except: non-replaced inline elements, table rows, row groups, table columns, and column groupsinheritednocomputed valueas specifiedanimation typediscrete formal syntax auto | none | [ [ pan-x | pan-left | pan-right ] | [ pan-y | pan-up | pan-down ] | pinch-zoom ] | manipulation examples disabling all gestures the most common usage is to disable all gestures on an element (and its non-scrollable descendants) that provides its own dragging and zooming behavior – such as a map or game surface.

<button>: The Button element - HTML: Hypertext Markup Language
unlike other browsers, firefox persists the dynamic disabled state of a <button> across page loads.
... setting autocomplete="off" on the button disables this feature; see bug 654072.
... disabled this boolean attribute prevents the user from interacting with the button: it cannot be pressed or focused.
... firefox, unlike other browsers, persists the dynamic disabled state of a <button> across page loads.

<link>: The External Resource Link element - HTML: Hypertext Markup Language
disabled for rel="stylesheet" only, the disabled boolean attribute indicates whether or not the described stylesheet should be loaded and applied to the document.
... if disabled is specified in the html when it is loaded, the stylesheet will not be loaded during page load.
... instead, the stylesheet will be loaded on-demand, if and when the disabled attribute is changed to false or removed.
... setting the disabled property in the dom causes the stylesheet to be removed from the document's document.stylesheets list.

<video>: The Video Embed element - HTML: Hypertext Markup Language
to disable video autoplay, autoplay="false" will not work; the video will autoplay if the attribute is there in the <video> tag at all.
... use the disablepictureinpicture attribute if you want to disable the picture-in-picture mode (and the control).
... disablepictureinpicture prevents the browser from suggesting a picture-in-picture context menu or to request picture-in-picture automatically in some cases.
... disableremoteplayback a boolean attribute used to disable the capability of remote playback in devices that are attached using wired (hdmi, dvi, etc.) and wireless technologies (miracast, chromecast, dlna, airplay, etc).

Feature Policy - HTTP
feature policy allows web developers to selectively enable, disable, and modify the behavior of certain features and apis in the browser.
... the general principle is that there should be an intuitive or non-breaking way for web developers to detect or handle the case when the feature is disabled.
...best practices are then enforced by using policies that disable the policy-controlled features.
...there are policy-controlled features to allow functionality to be enabled/disabled for specific origins or frames within a website.

Feature-Policy: display-capture - HTTP
if display-capture is disabled in a document, the document will not be able to initiate screen capture via getdisplaymedia().
... 'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: payment - HTTP
when this policy is disabled, the paymentrequest() constructor will throw a syntaxerror.
... 'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

X-DNS-Prefetch-Control - HTTP
this is what browsers do, if they support the feature, when this header is not present off disables dns prefetching.
...however, the user may wish to disable prefetching.
... on firefox, this can be done by setting the network.dns.disableprefetch preference to true.
...on firefox, this can be changed by setting the network.dns.disableprefetchfromhttps preference to false.

HTTP Index - HTTP
22 reason: cors disabled authentication, authentication article, cors, cross-origin, disabled, errors, http, https, messages, resource, same origin, same-origin, security, sharing, validation, secure, troubleshooting a request that needs to use cors was attempted, but cors is disabled in the user's browser.
... 37 feature policy feature policy, feature-policy, http, reference, security, header feature policy allows web developers to selectively enable, disable, and modify the behavior of certain features and apis in the browser.
...when this policy is disabled, the paymentrequest() constructor will throw a securityerror.
...although these protections are largely unnecessary in modern browsers when sites implement a strong content-security-policy that disables the use of inline javascript ('unsafe-inline'), they can still provide protections for users of older web browsers that don't yet support csp.

Common XSLT Errors - XSLT: Extensible Stylesheet Language Transformations
the disable-output-escaping attribute.
...while we could try to add some heuristics to serialize and reparse just the part of the output document which has disable-output-escaping applied, heuristics often get things wrong and lead to surprising results, hence we've been reluctant to add this so far.
... often times stylesheets contain code like <xsl:text disable-output-escaping="yes">&nbsp;</xsl:text>, this is equivalent to simply putting &#160; in the stylesheet which will work great in all xslt engines.
... we do realize that the lack of disable-output-escaping is a problem and we'd like to find a solution for it, however so far we haven't found any good solutions.

/loader - Archive of obsolete content
`'disable'`).
... for example in the sdk reason may be one of: shutdown, disable, uninstall.
... unload(loader, 'disable'); calls to this function will dispatch the unload observer notification that modules can listen to as described above.

Deploying a Plugin as an Extension - Archive of obsolete content
the downside to this method is that once the plugin is installed, it might be difficult for users to upgrade, uninstall, or disable the plugin.
...this allows the plugin to be treated like other firefox extensions; it can be upgraded, disabled, or uninstalled using the firefox user interface.
...because it is an extension, we can disable/enable it, as well as uninstall it.

How to convert an overlay extension to restartless - Archive of obsolete content
(note that the usage of an octal integer literal, while standard for handling permissions, is dangerous and deprecated; usage of use es5 strict mode to disable this and other foot-guns is recommended) if you need to read/manipulate binary data, a nsibinaryinputstream instance is what you'll use on that stream (e.g.
...rtup(); // do whatever initial startup stuff you need to do foreachopenwindow(loadintowindow); services.wm.addlistener(windowlistener); } function shutdown(data,reason) { if (reason == app_shutdown) return; foreachopenwindow(unloadfromwindow); services.wm.removelistener(windowlistener); mymodule.shutdown(); // do whatever shutdown stuff you need to do on addon disable components.utils.unload("chrome://myaddon/content/mymodule.jsm"); // same url as above // hack warning: the addon manager does not properly clear all addon related caches on update; // in order to fully update images and locales, their caches need clearing here services.obs.notifyobservers(null, "chrome-flush-caches", null); } function install(data,reason) { } fun...
...in order for your add-on to reliably update without a restart it needs to be able to shutdown/disable cleanly.

Chapter 5: Let's build a Firefox extension - Archive of obsolete content
preference description value nglayout.debug.disable_xul_cache (not present in firefox 3.5+) ordinarily, firefox will cache xul documents after they have been read in once, to speed subsequent displays.
...at this point, it’s important that you disabled the xul cache as discussed in the earlier section, “setting up your development environment”.
...the following all assumes that you’ve disabled the xul cache as discussed in the section “setting up your development environment”.

The Essentials of an Extension - Archive of obsolete content
if the application or version range don't match, you won't be allowed to install the extension, or the extension will be installed in a disabled state.
... users can disable version checks through preferences or installing add-ons like the add-on compatibility reporter.
...any errors or missing information will cause the installation process to fail, or the extension to be installed in a disabled state.

XUL user interfaces - Archive of obsolete content
<column/> </columns> <rows> <row> <label class="text-prompt" value="date:" accesskey="d" control="date-text"/> <textbox id="date-text" type="timed" timeout="750" oncommand="refresh();"/> </row> <row> <label value="day:"/> <hbox id="day-box"> <label class="day" value="sunday" disabled="true"/> <label class="day" value="monday" disabled="true"/> <label class="day" value="tuesday" disabled="true"/> <label class="day" value="wednesday" disabled="true"/> <label class="day" value="thursday" disabled="true"/> <label class="day" value="friday" disabled="true"/> <label class="day" value="saturday" disabled="true"...
... 2em; } .head-1 { font-weight: bold; font-size: 200%; padding-left: 5px; } /* the group box */ .demo-group { padding: 1em; } .demo-group grid { margin-bottom: 1em; } .demo-group column { margin-right: .5em; } .demo-group row { margin-bottom: .5em; } .demo-group .buttons { -moz-box-pack: end; } /* the day-of-week labels */ .day { margin-left: 1em; } .day[disabled] { color: #777; } .day:first-child { margin-left: 4px; } /* the left column labels */ .text-prompt { padding-top: .25em; } /* the date input box */ #date-text { max-width: 8em; } /* the status bar */ statusbar { width: 100%; border: 1px inset -moz-dialog; margin: 4px; padding: 0px 4px; } #status { padding: 4px; } #status[warning] { color: red; } make ...
...ar() refresh() } // called by date textbox function refresh() { var d = datebox.value var thedate = null showstatus(null) if (d != "") { try { var a = d.split("/") var thedate = new date(a[2], a[0] - 1, a[1]) showstatus(thedate) } catch (ex) {} } setday(thedate) } // internal function setday(adate) { if (currentday) currentday.setattribute("disabled", "true") if (adate == null) currentday = null else { var d = adate.getday() currentday = daybox.firstchild while (d-- > 0) currentday = currentday.nextsibling currentday.removeattribute("disabled") } datebox.focus(); } function showstatus(adate) { if (adate == null) { status.removeattribute("warning") status.setattribute("label", "") } else if (adate...

jspage - Archive of obsolete content
=1&&(!m||element.match(o,m))){if(!p){return document.id(o,r); }q.push(o);}o=o[l];}return(p)?new elements(q,{ddup:false,cash:!r}):null;};var e={html:"innerhtml","class":"classname","for":"htmlfor",defaultvalue:"defaultvalue",text:(browser.engine.trident||(browser.engine.webkit&&browser.engine.version<420))?"innertext":"textcontent"}; var b=["compact","nowrap","ismap","declare","noshade","checked","disabled","readonly","multiple","selected","noresize","defer"];var k=["value","type","defaultvalue","accesskey","cellpadding","cellspacing","colspan","frameborder","maxlength","readonly","rowspan","tabindex","usemap"]; b=b.associate(b);hash.extend(e,b);hash.extend(e,k.associate(k.map(string.tolowercase)));var a={before:function(m,l){if(l.parentnode){l.parentnode.insertbefore(m,l); }},after:function(m,l){...
... new elements($a(this.options).filter(function(l){return l.selected;}));},getcomputedstyle:function(m){if(this.currentstyle){return this.currentstyle[m.camelcase()]; }var l=this.getdocument().defaultview.getcomputedstyle(this,null);return(l)?l.getpropertyvalue([m.hyphenate()]):null;},toquerystring:function(){var l=[]; this.getelements("input, select, textarea",true).each(function(m){if(!m.name||m.disabled||m.type=="submit"||m.type=="reset"||m.type=="file"){return;}var n=(m.tagname.tolowercase()=="select")?element.getselected(m).map(function(o){return o.value; }):((m.type=="radio"||m.type=="checkbox")&&!m.checked)?null:m.value;$splat(n).each(function(o){if(typeof o!="undefined"){l.push(m.name+"="+encodeuricomponent(o)); }});});return l.join("&");},clone:function(o,l){o=o!==false;var r=this.cloneno...
...}}e.positions[d]=f;}return(e.positions[d]%c.a==c.b); },index:function(a){var b=this,c=0;while((b=b.previoussibling)){if(b.nodetype==1&&++c>a){return false;}}return(c==a);},even:function(b,a){return selectors.pseudo["nth-child"].call(this,"2n+1",a); },odd:function(b,a){return selectors.pseudo["nth-child"].call(this,"2n",a);},selected:function(){return this.selected;},enabled:function(){return(this.disabled===false); }});element.events.domready={onadd:function(a){if(browser.loaded){a.call(this);}}};(function(){var b=function(){if(browser.loaded){return;}browser.loaded=true; window.fireevent("domready");document.fireevent("domready");};window.addevent("load",b);if(browser.engine.trident){var a=document.createelement("div"); (function(){($try(function(){a.doscroll();return document.id(a).inject(docum...

Proxy UI - Archive of obsolete content
the previously selected radio button becomes unselected, and the related ui of the previous button is disabled (and is not editable).
...the modes that can have an empty configuration (auto url and manual) will be disabled if the prefs are blank.
... selecting an enabled item sets the menu selection and the proxy mode (network.proxy.type) selecting a disabled item is not allowed.

Static Analysis for Windows Code under Linux - Archive of obsolete content
ile for cross-compiling mozilla with static analysis hooked: #specify the cross compile cross_compile=1 ac_add_options --enable-application=browser ac_add_options --host=i686-linux ac_add_options --target=i686-mingw32 ac_add_options --enable-default-toolkit=cairo-windows mk_add_options moz_objdir=@topsrcdir@/../mozilla-mingw # mozilla trunk uses many vista only features on windows, so we should disable some components to make it buildable with mingw32.
... ac_add_options --enable-debug ac_add_options --disable-optimize ac_add_options --disable-tests ac_add_options --disable-embedding-tests ac_add_options --disable-installer ac_add_options --disable-accessibility ac_add_options --disable-vista-sdk-requirements ac_add_options --disable-updater #change this to where your libidl-config file locate.
... host_libidl_config=/usr/bin/libidl-config #config your moztools position glib_prefix=$home/moztools libidl_prefix=$home/moztools #disable xpcom stdcall calling convention because of gcc 4.3.0 bug cppflags="-dmoz_disable_xpcom_stdcall" #specify the cxx and static analysis #point cxx to the cross compile g++ with plugin support cxx=$home/mingw-install/bin/i686-mingw32-g++ ac_add_options --with-static-checking=$home/dehydra/dehydra-gcc/gcc_dehydra.so then, you can start building your mozilla.

Table Layout Regression Tests - Archive of obsolete content
a mozilla tree with the test files at %moz_src%/layout/html/tests, disable_tests should not be defined (so ac_add_options --enable-tests), patience and time.
...++webshell == 1 ++domwindow == 1 ++webshell == 2 ++domwindow == 2 note: styleverifytree is disabled note: frameverifytree is disabled note: verifyreflow is disabled ++webshell == 3 ++domwindow == 3 running baseline test for e:\moz_src\mozilla\layout\html\tests\block\rtest.lst.
...++webshell == 1 ++domwindow == 1 ++webshell == 2 ++domwindow == 2 note: styleverifytree is disabled note: frameverifytree is disabled note: verifyreflow is disabled ++webshell == 3 ++domwindow == 3 running verify test for e:\moz_src\mozilla\layout\html\tests\block\rtest.lst.

When To Use ifdefs - Archive of obsolete content
feature ifdefs the mozilla code has many features that can be enabled or disabled by configure flags.
... for instance, it is possible to disable most of the xul rendering engine by specifying --disable-xul when configuring the build.
...for instance, xpcom, the spidermonkey javascript engine, and the networking engine do not know anything about xul and should not have any ifdefs based on --disable-xul.

ContextMenus - Archive of obsolete content
another alternative is to disable the menuitem instead of hiding it, by setting the item's disabled property.
... deleteitem.disabled = (rows.childnodes.length == 0); for this example, using the disabled property is more suitable.
... items should be disabled when they don't apply in certain circumstances, but should be hidden when they would never apply to the element that was clicked on.

PopupKeys - Archive of obsolete content
on linux and the macintosh, disabled items within the menu are skipped over when navigating with the cursor keys.
... ignoring keys the ignorekeys attribute may be used to disable the key listener described above.
...you would not normally use this attribute for a menu, however you may wish to disable the escape key handling for a panel in this way.

Multiple Rules - Archive of obsolete content
here is another example for an xml source: <radiogroup datasources="people.xml" ref="*" querytype="xml"> <template> <query expr="person"/> <rule> <where subject="?gender" rel="equals" value="male"/> <action> <radio uri="?" label="?name is male"/> </action> </rule> <rule> <action> <radio uri="?" label="?name is female" disabled="true"/> </action> </rule> </template> </radiogroup> in this example, all male people are matched with the first rule, and a radio button is generated for each one.
... we assume that anyone that isn't male is female and use the second rule to create a disabled radio button for females.
...you can disable this for a where clause by setting the ignorecase attribute to true.

Input Controls - Archive of obsolete content
disabled set to true to have text entry disabled.
...the checkbox element is used for options that can be enabled or disabled.
... disabled set this to either true or false to disable or enable the check box or radio button.

More Menu Features - Archive of obsolete content
"open search..." accesskey="o"/> <menuitem label="save search..." accesskey="s"/> <menuseparator/> <menuitem label="close" accesskey="c"/> </menupopup> </menu> <menu id="edit-menu" label="edit" accesskey="e"> <menupopup id="edit-popup"> <menuitem label="cut" accesskey="t"/> <menuitem label="copy" accesskey="c"/> <menuitem label="paste" accesskey="p" disabled="true"/> </menupopup> </menu> </menubar> <toolbar id="findfiles-toolbar> here we have added two menus with various commands on them.
...also, the paste command has been disabled.
...for example, a feature that is enabled has a check placed beside the command and a feature that is disabled has no check.

Simple Menu Bars - Archive of obsolete content
disabled this boolean attribute determines whether the menu is disabled.
... although you can, there's rarely a need to disable an entire menu.
... disabled this boolean attribute determines whether the menu item is disabled.

Updating Commands - Archive of obsolete content
a command updater will listen for these situations and code can be executed which enables and disables commands as necessary.
...it will update the command and enable or disable necessary buttons and menu items.
...it just gets the necessary controller, calls its iscommandenabled method, and then enables or disables the command.

XUL Structure - Archive of obsolete content
remote xul was disabled in firefox 8, so the following is of historic interest only.
...to disable this mechanism, it is necessary to change the preference nglayout.debug.disable_xul_cache.
...or, just manually edit your user.js preferences file and add the following line: pref("nglayout.debug.disable_xul_cache", true); there are usually three different parts to a chrome package, although they are all optional.

window - Archive of obsolete content
attributes accelerated, chromemargin, disablechrome, disablefastfind, drawintitlebar, fullscreenbutton, height, hidechrome, id, lightweightthemes, lightweightthemesfooter, screenx, screeny, sizemode, title, width, windowtype examples <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <!-- run this example using copy & paste in this live xul editor: https://github.com/km-200/xul --> <!-- extrem...
... disablechrome type: boolean set this attribute to true to disable chrome in the window.
... disablefastfindtype: booleanput disablefastfind="true" on the root element of a xul document, which is intended to be loaded in a tab, to disable the find bar for the tab with this document.

Building XULRunner with Python - Archive of obsolete content
you will also want to disable any virus scanner resident monitoring as that will slow builds.
... mk_add_options moz_objdir=@topsrcdir@/../obj-xulrunner mk_add_options moz_co_project=xulrunner ac_add_options --enable-application=xulrunner ac_add_options --enable-extensions=python,default ac_add_options --disable-javaxpcom ac_add_options --disable-activex ac_add_options --disable-activex-scripting ac_add_options --disable-tests ac_add_options --enable-optimize to check out all the required source code and build it the first time with no local client.mk file, execute cd /c/projects cvs -d :pserver:anonymous@cvs-mirror.mozilla.org:/cvsroot co mozilla/client.mk cd mozilla make -f client.mk for subsequen...
... using python in xul applications add the following to yourprefs.js during development pref("browser.dom.window.dump.enabled", true); pref("javascript.options.showinconsole", true); pref("javascript.options.strict", true); pref("nglayout.debug.disable_xul_cache", true); pref("nglayout.debug.disable_xul_fastload", true); html <script> tags specify that python is used withtype="application/x-python" attribute.

2006-11-03 - Archive of obsolete content
uch file or directory (build problem on winxp) november 2nd: kenoa complained that when he is compiling using cygwin on win32 he gets the following error no such file or directory1: /cygdrive/c/mozilla/mail/config/mozconfig client.mk:339: /cygdrive/c/mozilla/.mozconfig.mk: no such file or directory he claims that the file ".mozconfig" exists in /cygdrive/c/mozilla/mail/config/mozconfig the disable-crypto cause problem originally posted on november 2nd: gxk is building minimo using the code base from sept.
... when he builds using the disable.crypto option he encounters the following problem: no rule to make target `../../dist/lib/components/libpipboot.a', needed by `minimo'.
...(http://www.google.com/url?sa=d&q=htt...tail%3fid%3d64) gavin recommended that phil should add |ac_add_options --disable-airbag| to his .mozconfig.

Visual typescript game engine - Game development
appuseaccountssystem: boolean = false; networking is disabled by default.
... * default value is 9001 */ private broadcasterport: number = 9001; /** * @description important note for this property: if you * disable (false) you cant use account system or any other * network.
... */ private appuseaccountssystem: boolean = false; /** * appusebroadcaster disable or enable broadcaster for * video chats.

Getting started with HTML - Learn web development
for example, consider the disabled attribute, which you can assign to form input elements.
... (you use this to disable the form input elements so the user can't make entries.
... the disabled elements typically have a grayed-out appearance.) for example: <input type="text" disabled="disabled"> as shorthand, it is acceptable to write this as follows: <!-- using the disabled attribute prevents the end user from entering text into the input box --> <input type="text" disabled> <!-- text input is allowed, as it doesn't contain the disabled attribute --> <input type="text"> for reference, the example above also includes a non-disabled form input element.the html from the example above produces this result: omitting quotes around attribute values if you look at code for a lot of other sites, you might come across a number of strange markup styles, including attribute values without quotes.

Componentizing our Svelte app - Learn web development
name for '{todo.name}'</label> <input bind:value={name} type="text" id="todo-{todo.id}" autocomplete="off" class="todo-text" /> </div> <div class="btn-group"> <button class="btn todo-cancel" on:click={oncancel} type="button"> cancel<span class="visually-hidden">renaming {todo.name}</span> </button> <button class="btn btn__primary todo-edit" type="submit" disabled={!name}> save<span class="visually-hidden">new name for {todo.name}</span> </button> </div> </form> {:else} [...] when the user presses the edit button, the editing variable will be set to true, and svelte will remove the markup in the {:else} part of the dom and replace it with the markup in the {#if...} section.
... we also disable the save button when the <input> is empty, using the disabled={!name} attribute, and allow the user to cancel the edit using the escape key, like this: on:keydown={e => e.key === 'escape' && oncancel()}.
... name for '{todo.name}'</label> <input bind:value={name} type="text" id="todo-{todo.id}" autocomplete="off" class="todo-text" /> </div> <div class="btn-group"> <button class="btn todo-cancel" on:click={oncancel} type="button"> cancel<span class="visually-hidden">renaming {todo.name}</span> </button> <button class="btn btn__primary todo-edit" type="submit" disabled={!name}> save<span class="visually-hidden">new name for {todo.name}</span> </button> </div> </form> {:else} <!-- markup for displaying todo: checkbox, label, edit and delete button --> <div class="c-cb"> <input type="checkbox" id="todo-{todo.id}" on:click={ontoggle} checked={todo.completed} > <label for="todo-{todo.id}" class="todo-label">{todo.name}</la...

Frequently Asked Questions for Lightweight themes
once a theme is installed, it is saved in the add-ons manager, where you can enable or disable them as you wish.
... once a theme is installed, it is saved in the add-ons manager, where you can enable or disable them as you wish.
...next to the theme you want to undo, click the disable button.

The Firefox codebase: CSS Guidelines
if this isn't possible, you can also try introducing a :not() to prevent the other rule from applying, this is especially relevant for different element states (:hover, :active, [checked] or [disabled]).
... graytext: used on disabled items as text color.
... do not use it on text that is not disabled to desemphsize text, because it does not guarantee a sufficient contrast ratio for non-disabled text.

Widget Wrappers
areatype the type of the widget's current area isgroup true, will be false for wrappers around single widget nodes source for api-provided widgets, whether they are built-in to firefox or add-on-provided disabled for api-provided widgets, whether the widget is currently disabled.
... nb: this property is writable, and will toggle all the widgets' nodes' disabled states label for api-provided widgets, the label of the widget tooltiptext for api-provided widgets, the tooltip of the widget showinprivatebrowsing for api-provided widgets, whether the widget is visible in private browsing single wrapper properties all of a wrapper's properties are read-only unless otherwise indicated.
...es overflowed boolean indicating whether the node is currently in the overflow panel of the toolbar isgroup false, will be true for the group widget label for api-provided widgets, convenience getter for the label attribute of the dom node tooltiptext for api-provided widgets, convenience getter for the tooltiptext attribute of the dom node disabled for api-provided widgets, convenience getter and setter for the disabled state of this single widget.

GC and CC logs
you'll need to disable sandboxing by setting moz_disable_content_sandbox=t when you run firefox.
... from the commandline tldr: if you just want shutdown gc/cc logs to debug leaks that happen in our automated tests, you probably want something along the lines of: moz_disable_content_sandbox=t moz_cc_log_directory=/full/path/to/log/directory/ moz_cc_log_shutdown=1 moz_cc_all_traces=shutdown ./mach ...
...you'll need to disable sandboxing by setting moz_disable_content_sandbox=t when you run firefox.

Preference reference
set it to true to enable it, or false to disable it.browser.dom.window.dump.filebrowser.dom.window.dump.file redirects the ouput of window.dump() calls to a file whose address is specified in this preference if browser.dom.window.dump.enabled is set to true.
...if set to true, the data is stored as content preference.browser.pagethumbnails.capturing_disabledthe preference browser.pagethumbnails.capturing_disabled controls whether the application creates screenshots of visited pages which will be shown if the web page is shown in the grid of the "new tab page" (about:newtab) which offers the most often visited pages for fast navigation.browser.search.context.loadinbackgroundbrowser.search.context.loadinbackground controls whether a search from the context menu with "search <search engine> for <selected text...
...the old behavior can be restored by setting the preference mail.tabs.drawintitlebar to false.nglayout.debug.disable xul fastloadthe preference nglayout.debug.disable_xul_fastload controls whether or not xul fastload is used.nglayout.debug.disable_xul_cacheto improve performance, mozilla caches chrome xul documents the first time they load for faster loading later.

Cryptography functions
m mxr 3.2 and later pk11_getblocksize mxr 3.2 and later pk11_getcertfromprivatekey mxr 3.9.3 and later pk11_getcurrentwrapindex mxr 3.2 and later pk11_getdefaultarray mxr 3.8 and later pk11_getdefaultflags mxr 3.8 and later pk11_getdisabledreason mxr 3.8 and later pk11_getfirstsafe mxr 3.2 and later pk11_getinternalkeyslot mxr 3.2 and later pk11_getinternalslot mxr 3.2 and later pk11_getkeygen mxr 3.4 and later pk11_getkeylength mxr 3.2 and later pk11_getkeystrength ...
...yinfo mxr 3.2 and later pk11_importprivatekeyinfoandreturnkey mxr 3.4 and later pk11_importpublickey mxr 3.4 and later pk11_importsymkeywithflags mxr 3.4 and later pk11_initpin mxr 3.2 and later pk11_isfips mxr 3.2 and later pk11_isdisabled mxr 3.4 and later pk11_isfriendly mxr 3.2 and later pk11_ishw mxr 3.2 and later pk11_isinternal mxr 3.2 and later pk11_ispresent mxr 3.2 and later pk11_isreadonly mxr 3.2 and later pk11_isremovable mxr 3.12 and later ...
...r 3.9.2 and later pk11_unwrapsymkey mxr 3.2 and later pk11_unwrapsymkeywithflags mxr 3.2 and later pk11_unwrapsymkeywithflagsperm mxr 3.9 and later pk11_updateslotattribute mxr 3.8 and later pk11_userenableslot mxr 3.8 and later pk11_userdisableslot mxr 3.8 and later pk11_verify mxr 3.2 and later pk11_verifykeyok mxr 3.2 and later pk11_waitfortokenevent mxr 3.7 and later pk11_wrapsymkey mxr 3.2 and later pk11_writerawattribute mxr 3.12 and later pk11sdr_encrypt mxr ...

NSS Memory allocation
to solve that problem, it is generally necessary to disable the arena free list, so that arenas are actually freed back to the heap each time they are freed, and are allocated afresh from the heap each time they are allocated.
...set the environment variable nss_disable_arena_free_list to have any non-empty value, e.g.
... nss_disable_arena_free_list=1.

NSS 3.24 release notes
these checks have been disabled by default, as they can cause a performance regression.
... disable (by default) nss support in optimized builds for logging ssl/tls key material to a logfile if the sslkeylogfile environment variable is set.
... disable support for dtls compression.

NSS 3.27.1 release notes
notable changes in nss 3.27.1 availability of the tls 1.3 (draft) implementation has been re-disabled in the default build.
...nss 3.27 set this value on by default, allowing tls 1.3 (draft) to be disabled using nss_disable_tls_1_3, although the maximum version used by default remained tls 1.2.
... bugs fixed in nss 3.27.1 the following bug has been fixed in nss 3.27.1: re-disable tls 1.3 by default compatibility nss 3.27.1 shared libraries are backwards compatible with all older nss 3.x shared libraries.

NSS 3.35 release notes
note: in this release, support for new rsa_pss_pss_shax signature schemes have been disabled; end-entity certificates with rsa-pss keys will still be used to produce signatures, but they will use the rsa_pss_rsae_shax codepoints.
...experimental functions will always return this result if they are disabled or removed from a later nss release.
... the experimental api ssl_usealtserverhellotype has been disabled.

NSS 3.54 release notes
ec class 1 public primary certification authority - g4 sha-256 fingerprint: 363f3c849eab03b0a2a0f636d7b86d04d3ac7fcfe26a0a9121ab9795f6e176df bug 1618402 - verisign class 3 public primary certification authority - g3 sha-256 fingerprint: eb04cf5eb1f39afa762f2bb120f296cba520c1b97db1589565b81cb9a17b7244 a number of certificates had their email trust bit disabled.
... bug 1621151 - disable email trust bit for "o=government root certification authority; c=tw" root.
... bug 1618402 - remove symantec root certificates and disable email trust bit.

Python binding for NSS
wing module functions were added: nss.x509_cert_type nss.key_usage_flags nss.list_certs nss.find_certs_from_email_addr nss.find_certs_from_nickname nss.nss_get_version nss.nss_version_check nss.set_shutdown_callback nss.get_use_pkix_for_validation nss.set_use_pkix_for_validation nss.enable_ocsp_checking nss.disable_ocsp_checking nss.set_ocsp_cache_settings nss.set_ocsp_failure_mode nss.set_ocsp_timeout nss.clear_ocsp_cache nss.set_ocsp_default_responder nss.enable_ocsp_default_responder nss.disable_ocsp_default_responder the following files were added: src/py_traceback.h doc/examples/verify_cert.py test/test_misc.
... the following classes were replaced signaturealgorithm replaced by new class algorithmid the following classes were added algorithmid pkcs12decodeitem pkcs12decoder the following class methods were added pk11slot.authenticate() pk11slot.get_disabled_reason() pk11slot.has_protected_authentication_path() pk11slot.has_root_certs() pk11slot.is_disabled() pk11slot.is_friendly() pk11slot.is_internal() pk11slot.is_logged_in() pk11slot.is_removable() pk11slot.logout() pk11slot.need_login() pk11slot.need_user_init() pk11slot.user_disable() pk11slot.user_enable() pkcs12decodeitem.format...
...item.signed_cert_der pkcs12decodeitem.type signeddata.data signeddata.der the following module functions were added nss.nss.dump_certificate_cache_info() nss.nss.find_slot_by_name() nss.nss.fingerprint_format_lines() nss.nss.get_internal_slot() nss.nss.is_fips() nss.nss.need_pw_init() nss.nss.nss_init_read_write() nss.nss.pk11_disabled_reason_name() nss.nss.pk11_disabled_reason_str() nss.nss.pk11_logout_all() nss.nss.pkcs12_cipher_from_name() nss.nss.pkcs12_cipher_name() nss.nss.pkcs12_enable_all_ciphers() nss.nss.pkcs12_enable_cipher() nss.nss.pkcs12_export() nss.nss.pkcs12_map_cipher() nss.nss.pkcs12_set_nickname_collision_callback() nss.nss.pkcs12_set_preferred_cipher() ...

Hacking Tips
$ gdb --args out/dist/bin/js ./foo.js […] spidermonkey unwinder is disabled by default, to enable it type: enable unwinder .* spidermonkey (gdb) b js::math_cos (gdb) run […] #0 js::math_cos (cx=0x14f2640, argc=1, vp=0x7fffffff6a88) at js/src/jsmath.cpp:338 338 callargs args = callargsfromvp(argc, vp); (gdb) enable unwinder .* spidermonkey (gdb) backtrace 10 #0 0x0000000000f89979 in js::math_cos(jscontext*, unsigned int, js::value*) (cx=0x14f2640, arg...
...the other being disable this check in "about:config", by temporarily switching "security.fileuri.strict_origin_policy" to false note 2: the files can be very big and take a long time to load in the browser.
...for instance, on a 64-bit linux host you can use the following configure command to get an arm simulator build: ar=ar cc="gcc -m32" cxx="g++ -m32" ../configure --target=i686-pc-linux --enable-debug --disable-optimize --enable-threadsafe --enable-simulator=arm or on os x: $ ar=ar cc="clang -m32" cxx="clang++ -m32" ../configure --target=i686-apple-darwin10.0.0 --enable-debug --disable-optimize --enable-threadsafe --enable-arm-simulator an --enable-debug --enable-optimize build is recommended if you want to run jit-tests or jstests.

Starting WebLock
for example, the user interface needs to be able to enable and disable the web locking functionality, see what sites are in the whitelist, and add or remove sites from that list.
... unlock - disable web locking.
... void lock(); void unlock(); this interface does not enforce any policy with respect to how the user enables or disables this feature.

amIWebInstallListener
1.0 66 introduced gecko 2.0 inherits from: nsisupports last changed in gecko 8.0 (firefox 8.0 / thunderbird 8.0 / seamonkey 2.5) method overview boolean onwebinstallblocked(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); void onwebinstalldisabled(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); boolean onwebinstallrequested(in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, [optional] in pruint32 acount); note: prior to gecko 8.0, all references to nsidomwindow used in this interface were nsidomwindowinternal...
...onwebinstalldisabled() called when installation by websites is currently disabled.
... void onwebinstalldisabled( in nsidomwindow awindow, in nsiuri auri, [array, size_is(acount)] in nsivariant ainstalls, in pruint32 acount optional ); parameters awindow the window that triggered the installs.

nsICategoryManager
ents.interfaces.nsicategorymanager); var enumerator = categorymanager.enumeratecategory("app-startup"); var entries = []; while (enumerator.hasmoreelements()) { var item = enumerator.getnext(); var entry = item.queryinterface(components.interfaces.nsisupportscstring) entries.push(entry.tostring()); } entries.sort(); var entriesstring = entries.join("\n"); dump(entriesstring + "\n"); disable currently loaded plugins by type this snippet here shows how to disable plugins that are currently loaded for the file type of pdf.
... the second portion of this snippet disables plugins from loading in the future, it does not user the category manager but it is included for completness of the example.
...let categorymanager = cc['@mozilla.org/categorymanager;1']; categorymanager.getservice(ci.nsicategorymanager).deletecategoryentry('gecko-content-viewers', content_type, false); // update pref manager to prevent plugins from loading in future var stringtypes = ''; var types = []; var pref_disabled_plugin_types = 'plugin.disable_full_page_plugin_for_types'; if (services.prefs.prefhasuservalue(pref_disabled_plugin_types)) { stringtypes = services.prefs.getcharpref(pref_disabled_plugin_types); } if (stringtypes !== '') { types = stringtypes.split(','); } if (types.indexof(content_type) === -1) { types.push(content_type); } services.prefs.setcharpref(pref_disabled_plugin_types, t...

Migrating from Firebug - Firefox Developer Tools
the devtools additionally provide an option to copy the selector of a rule and copy disabled property declarations as commented out.
...you can paste whole style declarations into an existing rule property declarations which are commented out are automatically disabled.
...those panels allow you to enable and disable single or all breakpoints and to remove single breakpoints or all of them at once.

Intensive JavaScript - Firefox Developer Tools
isprime = true; for (var c = 2; c <= math.sqrt(candidate); ++c) { if (candidate % c === 0) { // not prime isprime = false; break; } } if (isprime) { primes.push(candidate); } } return primes; } function dopointlesscomputationswithblocking() { var primes = calculateprimes(iterations, multiplier); pointlesscomputationsbutton.disabled = false; console.log(primes); } we're just running a (very inefficient) primality test 50 times, for some quite large numbers.
... it's pretty simple to split up calculateprimes(): we will just calculate primality for each number in a separate function: function dopointlesscomputationswithrequestanimationframe() { function testcandidate(index) { // finishing condition if (index == iterations) { console.log(primes); pointlesscomputationsbutton.disabled = false; return; } // test this number var candidate = index * (multiplier * math.random()); var isprime = true; for (var c = 2; c <= math.sqrt(candidate); ++c) { if (candidate % c === 0) { // not prime isprime = false; break; } } if (isprime) { primes.push(candidate); } // schedule the next var testfu...
... the main thread code would look something like this: const iterations = 50; const multiplier = 1000000000; var worker = new worker("js/calculate.js"); function dopointlesscomputationsinworker() { function handleworkercompletion(message) { if (message.data.command == "done") { pointlesscomputationsbutton.disabled = false; console.log(message.data.primes); worker.removeeventlistener("message", handleworkercompletion); } } worker.addeventlistener("message", handleworkercompletion, false); worker.postmessage({ "multiplier": multiplier, "iterations": iterations }); } the main difference here, compared with the original, is that we need to: create a worker send it a mess...

about:debugging (before Firefox 68) - Firefox Developer Tools
if the "debug" button is disabled, check the "enable add-on debugging" box.
... the big advantages of this method, compared with installing an add-on from an xpi, are: you don't have to rebuild an xpi and reinstall when you change the add-on's code you can load an add-on without signing it and without needing to disable signing.
...it will be disabled for all other add-ons.

AudioTrackList.getTrackById() - Web APIs
this function allows the game to disable a specific character's audio in order to adjust the movie's performance based on occurrences within the game; if the character's dialog isn't relevant, it gets left out.
... function disablecharacter(videoelem, charactername) { videoelem.audiotracks.gettrackbyid(charactername).enabled = false; } this short function gets the audiotracklist containing the video's audio tracks using htmlmediaelement.audiotracks, then calls gettrackbyid() on it, specifying the character's name.
... the resulting track's audio is then disabled by setting its enabled flag to false.

characteristic - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

readValue() - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

uuid - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

value - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

writeValue() - Web APIs
full support 57notes disabled notes linux and versions of windows earlier than 10.disabled from version 57: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support ≤79notes disabled notes linux and versions of windows earlier than 10.disabled from version ≤79: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... full support 44notes disabled notes linux and versions of windows earlier than 10.disabled from version 44: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

Element.setAttribute() - Web APIs
html <button>hello world</button> javascript var b = document.queryselector("button"); b.setattribute("name", "hellobutton"); b.setattribute("disabled", ""); this demonstrates two things: the first call to setattribute() above shows changing the name attribute's value to "hellobutton".
... to set the value of a boolean attribute, such as disabled, you can specify any value.
...by setting the value of the disabled attribute to the empty string (""), we are setting disabled to true, which results in the button being disabled.

GamepadEvent - Web APIs
full support 35 no support 21 — 34prefixed prefixed implemented with the vendor prefix: webkitedge full support ≤18firefox full support 29 full support 29 no support 24 — 28disabled disabled from version 24 until version 28 (exclusive): this feature is behind the dom.gamepad.enabled preference (needs to be set to true).
...roid full support yesgamepadevent() constructorchrome full support 35edge full support 12firefox full support 29 full support 29 no support 24 — 28disabled disabled from version 24 until version 28 (exclusive): this feature is behind the dom.gamepad.enabled preference (needs to be set to true).
... full support 35 no support 21 — 34prefixed prefixed implemented with the vendor prefix: webkitedge full support 12firefox full support 29 full support 29 no support 24 — 28disabled disabled from version 24 until version 28 (exclusive): this feature is behind the dom.gamepad.enabled preference (needs to be set to true).

PaymentResponse.complete() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcomplete()chrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... noopera no support nosafari full support yeswebview android no support nochrome android full support 56 full support 56 no support 53 — 56disabled disabled from version 53 until version 56 (exclusive): this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentResponse.details - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetdetailschrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... noopera no support nosafari full support yeswebview android no support nochrome android full support 56 full support 56 no support 53 — 56disabled disabled from version 53 until version 56 (exclusive): this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentResponse.payerEmail - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetpayeremailchrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... noopera no support nosafari full support yeswebview android no support nochrome android full support 56 full support 56 no support 53 — 56disabled disabled from version 53 until version 56 (exclusive): this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentResponse.shippingAddress - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetshippingaddresschrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... noopera no support nosafari full support yeswebview android no support nochrome android full support 56 full support 56 no support 53 — 56disabled disabled from version 53 until version 56 (exclusive): this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentResponse.shippingOption - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetshippingoptionchrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... noopera no support nosafari full support yeswebview android no support nochrome android full support 56 full support 56 no support 53 — 56disabled disabled from version 53 until version 56 (exclusive): this feature is behind the #web-payments preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

Pointer events - Web APIs
a value of auto means the browser is free to apply its default touch behavior (to the specified region) and the value of none disables the browser's default touch behavior for the region.
... in the following example, the browser's default touch behavior is disabled for the div element.
...</div> </body> </html> in the following example, default touch behavior is disabled for some button elements.

PushEvent - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetpushevent experimentalchrome full support 42edge full support 16disabled full support 16disabled disabled from version 16: this feature is behind the enable service workers preference.
...lt.opera android full support 37safari ios no support nosamsung internet android full support 4.0pushevent() constructor experimentalchrome full support 42edge full support 16disabled full support 16disabled disabled from version 16: this feature is behind the enable service workers preference.
...sh enabled by default.opera android full support 37safari ios no support nosamsung internet android full support 4.0data experimentalchrome full support 57edge full support 16disabled full support 16disabled disabled from version 16: this feature is behind the enable service workers preference.

WebGLRenderingContext.stencilFunc() - Web APIs
stenciling enables and disables drawing on a per-pixel basis.
... examples the stencil testing is disabled by default.
... to enable or disable stencil testing, use the enable() and disable() methods with the argument gl.stencil_test.

WebGLRenderingContext.stencilFuncSeparate() - Web APIs
stencilling enables and disables drawing on a per-pixel basis.
... examples the stencil testing is disabled by default.
... to enable or disable stencil testing, use the enable() and disable() methods with the argument gl.stencil_test.

WebGLRenderingContext.stencilOp() - Web APIs
zpass a glenum specifying the function to use when both the stencil test and the depth test pass, or when the stencil test passes and there is no depth buffer or depth testing is disabled.
... examples the stencil testing is disabled by default.
... to enable or disable stencil testing, use the enable() and disable() methods with the argument gl.stencil_test.

WebGLRenderingContext.stencilOpSeparate() - Web APIs
zpass a glenum specifying the function to use when both the stencil test and the depth test pass, or when the stencil test passes and there is no depth buffer or depth testing is disabled.
... examples the stencil testing is disabled by default.
... to enable or disable stencil testing, use the enable() and disable() methods with the argument gl.stencil_test.

Introduction to the Real-time Transport Protocol (RTP) - Web APIs
disable the incoming audio track.
... deactivating hold mode local peer when the local user clicks the interface widget to disable hold mode, the disablehold() method is called to begin the process of restoring normal functionality.
... async function disablehold(micstream) { await audiotransceiver.sender.replacetrack(micstream.getaudiotracks()[0]); audiotransceiver.receiver.track.enabled = true; audiotransceiver.direction = "sendrecv"; } this reverses the steps taken in enablehold() as follows: the audio transceiver's rtcrtpsender's track is replaced with the specified stream's first audio track.

Movement, orientation, and motion: A WebXR example - Web APIs
handling the startup and shutdown ui then we call the setupxrbutton() function, which handles configuring the "enter/exit webxr" button to enable or disable it as necessary depending on the availability of webxr support for the session type specified in the session_type constant.
... function setupxrbutton() { if (navigator.xr.issessionsupported) { navigator.xr.issessionsupported(session_type) .then((supported) => { xrbutton.disabled = !supported; }); } else { navigator.xr.supportssession(session_type) .then(() => { xrbutton.disabled = false; }) .catch(() => { xrbutton.disabled = true; }); } } the label of the button gets adjusted in the code that handles actuallys ttarting and stopping the webxr session; we'll see that below.
...if the image's dimensions aren't both powers of two (see the ispowerof2() function), mipmapping is disabled and wrapping is clamped to the edges.

:enabled - CSS: Cascading Style Sheets
the element also has a disabled state, in which it can't be activated or accept focus.
... /* selects any enabled <input> */ input:enabled { color: blue; } syntax :enabled examples the following example makes the color of text and button <input>s green when enabled, and gray when disabled.
... html <form action="url_of_form"> <label for="firstfield">first field (enabled):</label> <input type="text" id="firstfield" value="lorem"><br> <label for="secondfield">second field (disabled):</label> <input type="text" id="secondfield" value="ipsum" disabled="disabled"><br> <input type="button" value="submit"> </form> css input:enabled { color: #2b2; } input:disabled { color: #aaa; } result specifications specification status comment html living standardthe definition of ':enabled' in that specification.

:where() - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internet:where()chrome full support 72disabled full support 72disabled disabled from version 72: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).
... to change preferences in chrome, visit chrome://flags.edge no support nofirefox full support 78 full support 78 full support 77notes disabled notes enabled by default in firefox nightly.disabled from version 77: this feature is behind the layout.css.is-where-selectors.enabled preference (needs to be set to enabled).
... to change preferences in firefox, visit about:config.ie no support noopera no support nosafari no support nowebview android no support nochrome android full support 72disabled full support 72disabled disabled from version 72: this feature is behind the #enable-experimental-web-platform-features preference (needs to be set to enabled).

Alternative style sheets - CSS: Cascading Style Sheets
preferred (no rel="alternate", with title="..." specified): applied by default, but disabled if an alternate stylesheet is selected.
... alternate (rel="alternate stylesheet", title="..." must be specified): disabled by default, can be selected.
... working draft the css om specification defines the concepts of the style sheet set name, its disabled flag, and the preferred css style sheet set name.

HTML attribute: readonly - HTML: Hypertext Markup Language
note: only text controls can be made read-only, since for other controls (such as checkboxes and buttons) there is no useful distinction between being read-only and being disabled, so the readonly attribute does not apply.
... attribute interactions the difference between disabled and readonly is that read-only controls can still function and are still focusable, whereas disabled controls can not receive focus and are not submitted with the form and generally do not function as controls until they are enabled.
...only="readonly">some value</textarea> <label>message</label> </div> result examples <fieldset> <legend>checkboxes buttons</legend> <p><label> <input type="checkbox" name="chbox" value="regular"> regular </label></p> <p><label> <input type="checkbox" name="chbox" value="readonly" readonly> readonly </label></p> <p><label> <input type="checkbox" name="chbox" value="disabled" disabled> disabled </label></p> </fieldset> <fieldset> <legend>radio buttons</legend> <p><label> <input type="radio" name="radio" value="regular"> regular </label></p> <p><label> <input type="radio" name="radio" value="readonly" readonly> readonly </label></p> <p><label> <input type="radio" name="radio" value="disabled" disabled> disabled </label></p> </fieldset> ...

<input type="text"> - HTML: Hypertext Markup Language
the permitted values for spellcheck are: false disable spell checking for this element.
... an input field can have spell checking enabled if it doesn't have the readonly attribute set and is not disabled.
... off disable automatic correction and text substitutions.

<input type="url"> - HTML: Hypertext Markup Language
the permitted values for spellcheck are: false disable spell checking for this element.
... an input field can have spell checking enabled if it doesn't have the readonly attribute set and is not disabled.
... off disable automatic correction and text substitutions.

<menuitem> - HTML: Hypertext Markup Language
may not be used within a menu item that also includes the attributes checked, disabled, icon, label, radiogroup or type.
... disabled boolean attribute which indicates that the command is not available in the current state.
... note that disabled is distinct from hidden; the disabled attribute is appropriate in any context where a change in circumstances might render the command relevant.

<noscript> - HTML: Hypertext Markup Language
permitted content when scripting is disabled and when it is a descendant of the <head> element: in any order, zero or more <link> elements, zero or more <style> elements, and zero or more <meta> elements.
... when scripting is disabled and when it isn't a descendant of the <head> element: any transparent content, but no <noscript> element must be among its descendants.
... result with scripting disabled external link rocks!

Feature-Policy: accelerometer - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: ambient-light-sensor - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: autoplay - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: battery - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: camera - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: document-domain - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: encrypted-media - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: gyroscope - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: layout-animations - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: legacy-image-formats - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: magnetometer - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: microphone - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: midi - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: oversized-images - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: picture-in-picture - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: publickey-credentials-get - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: screen-wake-lock - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: sync-xhr - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: unoptimized-images - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: unsized-media - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: usb - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: vibrate - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: wake-lock - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

web-share - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

Feature-Policy: xr-spatial-tracking - HTTP
'none': the feature is disabled in top-level and nested browsing contexts.
... the values * (enable for all origins) or 'none' (disable for all origins) may only be used alone, while 'self' and 'src' may be used with one or more origins.
... 'none': the feature is disabled in top-level and nested browsing contexts.

WebAssembly.CompileError - JavaScript
fariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jscompileerrorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0compileerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52note...
...s notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android ...

WebAssembly.LinkError - JavaScript
asafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jslinkerrorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0linkerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes n...
...otes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android ...

WebAssembly.RuntimeError - JavaScript
fariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsruntimeerrorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0runtimeerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52note...
...s notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57firefox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android ...

Lexical grammar - JavaScript
they can also be used to disable code to prevent it from being executed; this can be a valuable debugging tool.
...*/ console.log('hello world!'); } comment(); you can also use it in the middle of a line, if you wish, although this can make your code harder to read so it should be used with caution: function comment(x) { console.log('hello ' + x /* insert the value of x */ + ' !'); } comment('world'); in addition, you can use it to disable code to prevent it from running, by wrapping code in a comment, like this: function comment() { /* console.log('hello world!'); */ } comment(); in this case, the console.log() call is never issued, since it's inside a comment.
... any number of lines of code can be disabled this way.

Autoplay guide for media and Web Audio APIs - Web media technologies
you can also specify 'none' to disable autoplay entirely, '*' to allow autoplay from all domains, or one or more specific origins from which media can be automatically played.
... feature-policy: autoplay 'self' https://example.media an <iframe> can be written to specify that this autoplay policy should be applied to itself and any child frames would be written thusly: <iframe width="300" height="200" src="mediaplayer.html" allow="autoplay 'src' https://example.media"> </iframe> example: disabling autoplay setting the autoplay feature policy to 'none' disables autoplay entirely for the document or <iframe> and all nested frames.
...setting this value to false disables this capability.

Media - Progressive web apps (PWAs)
for example, an element that is disabled or read-only has the disabled attribute or the readonly attribute.
... selectors can specify these attributes like any other attributes, by using square brackets: [disabled] or [readonly].
... example these rules specify styles for a button that changes dynamically as the user interacts with it: .green-button { background-color:#cec; color:#black; border:2px outset #cec; padding: 5px 10px; } .green-button[disabled] { background-color:#cdc; color:#777; } .green-button:active, .green-button.active { border-style: inset; } <table> <tbody> <tr> <td><button class="green-button" disabled>click me</button></td> <td><button class="green-button">click me</button></td> <td><button class="green-button active">click me</button></td> </tr> <tr style="line-height:25%;"> <td>&nbsp;</td> </tr> <tr style="font-style:italic;"> <td>disabled</td> <td>normal</td> <td>active</td> </tr> </tbody> </table> live sample a fully functional butto...

kerning - SVG: Scalable Vector Graphics
the kerning attribute indicates whether the spacing between glyphs should be adjusted based on kerning tables that are included in the relevant font (i.e., enable auto-kerning) or instead disable auto-kerning and set the spacing between them to a specific length (typically, zero).
... <length> if a length is provided, then auto-kerning is disabled.
... the most common scenario, other than auto, is to set kerning to a value of 0 so that auto-kerning is disabled.

How to turn off form autocompletion - Web security
this article explains how a website can disable autocomplete for form fields.
... these features are usually enabled by default, but they can be a privacy concern for users, so browsers can let users disable them.
... disabling autocompletion to disable autocompletion in forms, you can set the autocomplete attribute to "off": autocomplete="off" you can do this either for an entire form, or for specific input elements in a form: <form method="post" action="/form" autocomplete="off"> […] </form> <form method="post" action="/form"> […] <div> <label for="cc">credit card:</label> <input type="text" id="cc" name="cc" autocomplete="...

page-mod - Archive of obsolete content
var pagemod = require("sdk/page-mod").pagemod({ include: ['*'], contentscriptwhen: 'ready', contentscriptfile: data.url('pagemod.js'), onattach: function(worker) { workers.push(worker); worker.on('detach', function () { detachworker(this, workers); }); } }); cleaning up on add-on removal content scripts receive a detach message when the add-on that attached them is disabled or removed: you can use this in the content script to undo any changes that you've made.
...the pattern must match the entire url, not just a subset, and has global, ignorecase, and multiline disabled.

system/unload - Archive of obsolete content
it is called with a single argument, one of the following strings describing the reason for unload: "uninstall", "disable", "shutdown", "upgrade", or "downgrade".
...note that if an add-on is unloaded with reason "disable", it will not be notified about "uninstall" while it is disabled.

jpm - Archive of obsolete content
disables the copying of the profile used, which allows one to reuse a profile.
... disables the copying of the profile used, which allows one to reuse a profile.

Listening for Load and Unload - Archive of obsolete content
exports.onunload = function (reason) {}; reason reason is one of the following strings describing the reason your add-on was unloaded: uninstall disable shutdown upgrade downgrade if your add-on is disabled, then uninstalled, your onunload listener will only be called once, with the disable reason.
... this happens because disabling an add-on also disables its onunload listeners, so there is no listener remaining when the add-on is uninstalled.

Adding menus and submenus - Archive of obsolete content
if you have nothing to show on a menu, you should follow the standard used in firefox: show a single disabled item with an "(empty)" label.
... menu types checkbox menu items you can make a menuitem "checkable" to allow the user to enable/disable options using the menu.

Promises - Archive of obsolete content
let addon = yield aom.getaddonbyid(addon_id); let path = yield addon.getdatadirectory(); writer.writedatato(path); // disable all extensions.
... for (let extension of yield aom.getaddonsbytypes(["extension"])) extension.userdisabled = true; }); json file storage this helper simplifies the use of json data storage files with asynchronous io.

Environment variables affecting crash reporting - Archive of obsolete content
moz_crashreporter_disable disable breakpad crash reporting completely.
... moz_crashreporter the opposite of moz_crashreporter_disable, force crash reporting on even if disabled in application.ini.

Autodial for Windows NT - Archive of obsolete content
a pref to disable users can bypass the feature altogether by setting the pref network.autodial-helper.enabled to false.
...or pehaps we should assume mozilla users can configure the autodial service and disable the helper by default, but netscape users need a little more help, and enable it for them.

Kill the XUL.mfl file for good - Archive of obsolete content
with quicklauncer (see above), mozilla's speed is actually quite adequate, even without xul.mfl for these reasons, it is desirable to disable the xul.mfl functionality.
...but creating a subdirectory named xul.mfl in mozilla's profile directory seems to help (mozilla is not smart enough to remove the directory before creating the file, thus the presence of the directory effectively disables this (mis)feature).

Compiling The npruntime Sample Plugin in Visual Studio - Archive of obsolete content
add the following preprocessor definitions to project properties|(all configurations)|c++|preprocessor|preprocessor definitions: win32;_windows;xp_win32;xp_win;_x86_;npsimple_exports disable precompiled headers using project properties|(all configurations)|c++|precompiled headers|create/use precompiled header.
... they may be already disabled.

In-Depth - Archive of obsolete content
each row is a different icon in one of its 4 different states (normal, hover, mouse down, and disabled).
... to cut the pieces out you need to define rectangles in the css file like this: #button-send { -moz-image-region: rect(294px 23px 315px 0px); } #button-send:hover { -moz-image-region: rect(294px 46px 315px 23px); } #button-send:hover:active { -moz-image-region: rect(294px 69px 315px 46px); } #button-send[disabled="true"] { -moz-image-region: rect(294px 92px 315px 69px) !important; } the properties for rect are listed in a clockwise fashion - top, right, bottom, left.

Installing Dehydra - Archive of obsolete content
cd $home hg clone http://hg.mozilla.org/mozilla-central/ cd mozilla-central hg update aurora_base_20110705 cd js/src autoconf-2.13 mkdir $home/obj-js cd $home/obj-js $home/mozilla-central/js/src/configure --enable-optimize --disable-debug make it has to be checked whether later/newer branches (like aurora_base_20120131) are working, too.
...mkdir gcc-objdir mkdir gcc-dist cd gcc-objdir ../gcc-4.5.3/configure --disable-bootstrap --enable-languages=c,c++ --prefix=$pwd/../gcc-dist make make install building dehydra and treehydra building dehydra requires spidermonkey development headers from the previous step.

JavaScript crypto - Archive of obsolete content
= 0x1<<6; //skipjack algorithm as in fortezza cards pkcs11_mech_rc5_flag = 0x1<<7; pkcs11_mech_sha1_flag = 0x1<<8; pkcs11_mech_md5_flag = 0x1<<9; pkcs11_mech_md2_flag = 0x1<<10; pkcs11_mech_random_flag = 0x1<<27; //random number generator pkcs11_pub_readable_cert_flag = 0x1<<28; //stored certs can be read off the token w/o logging in pkcs11_disable_flag = 0x1<<30; //tell mozilla to disable this slot by default cipher flags reserved important for cryptomechanismflags 0x1<<11, 0x1<<12, ...
... void disablerightclick(); unimplemented ...

Simple Storage - Archive of obsolete content
if there are no notes, we'll show a// disabled "(empty)" menuitem.function updatejetpackmenu() { jetpack.menu.set({ label: "notes", menu: new jetpack.menu(notes.length > 0 ?
... notes : [{ label: "(empty)", disabled: true }]) });}// modify the page's context menu by sneaking in before it's shown.

Simple Storage - Archive of obsolete content
if there are no notes, we'll show a // disabled "(empty)" menuitem.
... notes : [{ label: "(empty)", disabled: true }]) }); } // modify the page's context menu by sneaking in before it's shown.

Plug-n-Hack Phase1 - Archive of obsolete content
for testing); plug-n-hack requires tool and service manifests to be served from the same origin as the api endpoints but, for testing purposes, ringleader (the firefox addon implementation of the browser component) allows you to set a preference to relax or disable origin checks.
... the preference is ringleader.check.origin this can be set to 'off' to disble origin checks completely, or 'noport' to disable only port checks.

Attribute (XUL) - Archive of obsolete content
allownegativeassertions alternatingbackground alwaysopenpopup attribute autocheck autocompleteenabled autocompletepopup autocompletesearch autocompletesearchparam autofill autofillaftermatch autoscroll beforeselected buttonaccesskeyaccept buttonaccesskeycancel buttonaccesskeydisclosure buttonaccesskeyextra1 buttonaccesskeyextra2 buttonaccesskeyhelp buttonalign buttondir buttondisabledaccept buttonlabelaccept buttonlabelcancel buttonlabeldisclosure buttonlabelextra1 buttonlabelextra2 buttonlabelhelp buttonorient buttonpack buttons checked checkstate clicktoscroll class closebutton closemenu coalesceduplicatearcs collapse collapsed color cols command commandupdater completedefaultindex container containment contentcontextmenu contenttooltip context ...
...contextmenu control crop curpos current currentset customindex customizable cycler datasources decimalplaces default defaultbutton defaultset description dir disableautocomplete disableautoselect disableclose disabled disablehistory disablekeynavigation disablesecurity dlgtype dragging editable editortype element empty emptytext deprecated since gecko 2 enablecolumndrag enablehistory equalsize eventnode events expr firstdayofweek firstpage first-tab fixed flags flex focused forcecomplete grippyhidden grippytooltiptext group handlectrltab height helpuri hidden hidechrome hidecolumnpicker hideheader hideseconds hidespinbuttons highlightnonmatches homepage href icon id ignoreblurwhilesearching ignorecase ignoreincolumnpicker ignorekey...

XUL Events - Archive of obsolete content
this event would be used to update the disabled status of its commands.dommenuitemactivethe dommenuitemactive event is executed when a <menu> or a <menuitem> has been hovered or highlighted.dommenuiteminactivethe dommenuiteminactive event is executed when a <menu> or a <menuitem> in no longer hovered or highlighted.popuphiddenthe popuphidden event is executed when a <menupopup>, <panel> or <tooltip> has become hidden.popuphidingthe popuphidin...
...you would use this to update the disabled status of its commands.

Menus - Archive of obsolete content
commands that don't apply at a given time should be disabled.
... menu items can be disabled by setting the disabled attribute to true.

Sorting and filtering a custom tree view - Archive of obsolete content
view example" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" onload="init()"> <script type="application/javascript" src="sort.js"/> <hbox align="center" id="search-box"> <label accesskey="f" control="filter">filter</label> <textbox id="filter" oninput="inputfilter(event)" flex="1"/> <button id="clearfilter" oncommand="clearfilter()" label="clear" accesskey="c" disabled="true"/> </hbox> <tree id="tree" flex="1" persist="sortdirection sortresource" sortdirection="ascending" sortresource="description"> <treecols> <treecol id="name" label="name" flex="1" persist="width ordinal hidden" onclick="sort(this)" class="sortdirectionindicator" sortdirection="ascending"/> <splitter class="tree-splitter"/> <treecol id="description" label="description" flex="1"...
...} return o; } function gettopvisiblerow() { return tree.treeboxobject.getfirstvisiblerow(); } function settopvisiblerow(topvisiblerow) { return tree.treeboxobject.scrolltorow(topvisiblerow); } function inputfilter(event) { //do this now rather than doing it at every comparison var value = prepareforcomparison(event.target.value); setfilter(value); document.getelementbyid("clearfilter").disabled = value.length == 0; } function clearfilter() { document.getelementbyid("clearfilter").disabled = true; var filterelement = document.getelementbyid("filter"); filterelement.focus(); filterelement.value = ""; setfilter(""); } function setfilter(text) { filtertext = text; loadtable(); } ...

Tree Widget Changes - Archive of obsolete content
this will be hidden if the column redordering is disabled using enablecolumndrag="false".
...in this case, disable editing for that cell by setting editable to false for that cell, as in the following: <treecell value="true" editable="false"/> or, for custom views, return false from the iseditable method.

Localization - Archive of obsolete content
orizontal" onload="initsearchlist()" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script src="findfile.js"/> <popupset> <menupopup id="editpopup"> <menuitem label="&cutcmd.label;" accesskey="&cutcmd.accesskey;"/> <menuitem label="&copycmd.label;" accesskey="&copycmd.accesskey;"/> <menuitem label="&pastecmd.label;" accesskey="&pastecmd.accesskey;" disabled="true"/> </menupopup> </popupset> <keyset> <key id="cut_cmd" modifiers="accel" key="&cutcmd.commandkey;"/> <key id="copy_cmd" modifiers="accel" key="&copycmd.commandkey;"/> <key id="paste_cmd" modifiers="accel" key="&pastecmd.commandkey;"/> <key id="close_cmd" keycode="vk_escape" oncommand="window.close();"/> </keyset> <vbox flex="1"> <toolbox> <menubar id="findfiles-menuba...
... accesskey="&editmenu.accesskey;"> <menupopup id="edit-popup"> <menuitem label="&cutcmd.label;" accesskey="&cutcmd.accesskey;" key="cut_cmd"/> <menuitem label="&copycmd.label;" accesskey="&copycmd.accesskey;" key="copy_cmd"/> <menuitem label="&pastecmd.label;" accesskey="&pastecmd.accesskey;" key="paste_cmd" disabled="true"/> </menupopup> </menu> </menubar> <toolbar id="findfiles-toolbar"> <toolbarbutton id="opensearch" label="&opencmdtoolbar.label;"/> <toolbarbutton id="savesearch" label="&savecmdtoolbar.label;"/> </toolbar> </toolbox> <tabbox> <tabs> <tab label="&searchtab;" selected="true"/> <tab label="&optionstab;"/> </tabs> <tabpanels> <tabpanel id="search...

XUL accessibility guidelines - Archive of obsolete content
testing keyboard access to test keyboard accessibility, simply unplug or disable your mouse and attempt to use your application with only your keyboard.
... focus moves or is disabled unexpectedly.

dialog - Archive of obsolete content
attributes buttonaccesskeyaccept, buttonaccesskeycancel, buttonaccesskeydisclosure, buttonaccesskeyextra1, buttonaccesskeyextra2, buttonaccesskeyhelp, buttonalign, buttondir, buttondisabledaccept, buttonlabelaccept, buttonlabelcancel, buttonlabeldisclosure, buttonlabelextra1, buttonlabelextra2, buttonlabelhelp, buttonorient, buttonpack, buttons, defaultbutton, title properties buttons, defaultbutton methods acceptdialog, canceldialog, centerwindowonscreen, getbutton, movetoalertposition examples <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/global...
... buttondisabledaccept type: boolean if true, the accept button is disabled.

Building XULRunner - Archive of obsolete content
if you do not want to build javaxpcom support, specify --disable-javaxpcom in your configuration.
... a basic minimal mozconfig which will build a release configuration of xulrunner is: mk_add_options moz_co_project=xulrunner mk_add_options moz_objdir=@topsrcdir@/obj-xulrunner ac_add_options --enable-application=xulrunner #uncomment the following line if you don't want to build javaxpcom: #ac_add_options --disable-javaxpcom cvs tags and xulrunner versions older xulrunner releases where tagged in cvs with (for instance xulrunner_1_8_0_5_release ) up to version 1.8.0.5 the cvs repository does not have specific tags for xulrunner anymore.

Getting started with XULRunner - Archive of obsolete content
here is mine: pref("toolkit.defaultchromeuri", "chrome://myapp/content/main.xul"); /* debugging prefs, disable these before you deploy your application!
... */ pref("browser.dom.window.dump.enabled", true); pref("javascript.options.showinconsole", true); pref("javascript.options.strict", true); pref("nglayout.debug.disable_xul_cache", true); pref("nglayout.debug.disable_xul_fastload", true); xulrunner specific preferences include: toolkit.defaultchromeuri specifies the default window to open when the application is launched.

mozilla.dev.platform FAQ - Archive of obsolete content
0x00016b50 in xre_createappdata () a: when you <tt>--disable-libxul</tt>, the xpcom glue doesn't have information about how to load all the dependent libraries like <tt>libgfx.dylib</tt>.
... in order to use xr successfully in <tt>--disable-libxul</tt> mode, you have to setup dyld_library_path to include <tt>/library/frameworks/xul.framework/versions/1.9a1</tt> - benjamin smedberg, fri, oct 20 2006 9:12 am q: when i try to build a completely standalone xul app on os x (10.4.8).

2006-10-13 - Archive of obsolete content
a way to recover the toolbars from popup windows that hide it a suggestion for a way to recover toolbars from a popup window that disables it.
...this function was disabled, see bug: https://bugzilla.mozilla.org/show_bug.cgi?id=180048 meetings none this week.

Processing XML with E4X - Archive of obsolete content
it's been disabled by default for chrome in firefox 17, and completely removed in firefox 21.
...you can add an e4x=1 argument to your <script> tag to disable this restriction: <script type="text/javascript;e4x=1"> ...

Building Mozilla XForms - Archive of obsolete content
2 on a dual core processor) ac_add_options --enable-extensions="default,xforms" ac_add_options --disable-debug ac_add_options --enable-optimize ac_add_options --disable-tests for a debug build, you could use this configuration: .
... $topsrcdir/browser/config/mozconfig mk_add_options moz_co_project=browser mk_add_options moz_objdir=@topsrcdir@/obj-@config_guess@ ac_add_options --enable-extensions="default,xforms" ac_add_options --enable-debug ac_add_options --disable-optimize ac_add_options --disable-tests building now that you have everything ready, you can rebuild mozilla with the same command you used before to build firefox without xforms.

Audio for Web games - Game development
volume programmatic volume control may be disabled in mobile browsers.
... buffering and preloading likely as an attempt to mitigate runaway mobile network data use, we also often find that buffering is disabled before playback has been initiated.

HTML: A good basis for accessibility - Learn web development
the following seems like a reasonable enough example: fill in your name: <input type="text" id="name" name="name"> however, this is not so useful for disabled users.
... these values cause unexpected behavior when copying or dragging links, opening links in a new tab or window, bookmarking, and when javascript is still downloading, errors out, or is disabled.

HTML: A good basis for accessibility - Learn web development
the following seems like a reasonable enough example: fill in your name: <input type="text" id="name" name="name"> however, this is not so useful for disabled users.
... these values cause unexpected behavior when copying or dragging links, opening links in a new tab or window, bookmarking, and when javascript is still downloading, errors out, or is disabled.

Mobile accessibility - Learn web development
not disabling zoom using viewport, it is possible to disable zoom.
...there are certain situations where zooming might break the ui; in such cases, if you feel that you absolutely need to disable zoom, you should provide some other kind of equivalent, such as a control for increasing the text size in a way that doesn't break your ui.

Accessibility API cross-reference
for grayed-out (disabled) vs.
... unavailable enabled n/a aria-disabled=true disabled (boolean attribute) especially used for sliders and scrollbars n/a vertical vertical aria-orientation=vertical accessible events msaa event (event_object_*, event_system_*) java accessibility event gnome accessibility signals mac os x accessibility event description & notes javascript relevant xul focus focus, focusin blur, focusout selection select state_change change (not sure if t...

Accessibility Features in Firefox
for example, you can disable functions that websites use to move or resize windows, or to remove your status bar, to disable right-click contextual menus, change the status bar text, etc.
... you can furthermore control javascript capabilities to remove scrollbars, toolbars or system buttons like minimize, close and maximize by editing the about:config related properties or by editing accordingly the user.js file as explained in this "disable other javascript window features" document.

Mozilla's Section 508 Compliance
(b) applications shall not disrupt or disable activated features of other products that are identified as accessibility features, where those features are developed and documented according to industry standards.
... applications also shall not disrupt or disable activated features of any operating system that are identified as accessibility features where the application programming interface for those accessibility features has been documented by the manufacturer of the operating system and is available to the product developer.

Android-specific test suites
to disable a single test, edit the source code and insert junit's @ignore annotation before the existing @test annotation.
... for example, to disable org.mozilla.gecko.permissions.testsuccessrunnableisexecutedifpermissionsaregranted, add @ignore as follows: ...

Building SpiderMonkey with UBSan
mkdir $1 cd $1 llvm_root="$home/llvm" sanflag="-fsanitize=undefined -fno-sanitize=alignment,float-cast-overflow,float-divide-by-zero,vptr -dxmalloc=myxmalloc" \ cc="$llvm_root/build/release+asserts/bin/clang" \ cxx="$llvm_root/build/release+asserts/bin/clang++" \ cflags="$sanflag" \ cxxflags="$sanflag" \ moz_llvm_hacks=1 \ ../configure --enable-debug --disable-optimize make -j 8 fi 3.
...s in spidermonkey, and is more implementation-defined (slow on x86 / crash on arm) than undefined behavior float-cast-overflow, which hits known bugs in spidermonkey, and isn't exploited by today's compilers float-divide-by-zero, which jesse doesn't think is actually undefined behavior (aside from the question of whether cpu overflow flags are set) vptr, a check that requires rtti, which is disabled by default in spidermonkey 4.

Building Firefox with Debug Symbols
this is enabled by default so unless you have explcitly disabled it your build you should include symbols.
...if you want to keep the symbols in the patches, you need to add this to your mozconfig: ac_add_options --disable-install-strip ...

Simple SeaMonkey build
mk_add_options moz_objdir=/path/to/comm-central/obj-sm-debug ac_add_options --enable-application=suite ac_add_options --enable-debug ac_add_options --disable-optimize normally a shared build suffices for debugging purposes but current nightly releases are actually static builds which require even more memory to link.
... the support for libxul builds is still experimental but it should work if you --disable-mailnews.

Eclipse CDT Manual Setup
whenever you create a new workspace for a mozilla source tree, you should be sure to turn off the following two settings in the workspace preferences (window > preferences, or eclipse > preferences) before creating a project in that workspace: in "general > workspace", disable "build automatically" in "c/c++ > indexer", disable "automatically update the index" turning off automatic indexing prevents the cpu intensive indexer from running at various stages during the steps below before we're ready.
...select the "behavior" tab, delete the word "all" from the "build (incremental build)" field, and disable the clean checkbox.

Experimental features in Firefox
however, because firefox doesn't currently suport multiple audio and video tracks, the most common use cases for these properties don't work, so they're both disabled by default.
... nightly 60 no developer edition 60 no beta 60 no release 60 no preference name security.mixed_content.upgrade_display_content ftp support disabled for security reasons, mozilla intends to remove support for ftp from firefox in 2020, effective in firefox 82.

Add-on Manager
the getstartupchanges() method lets you find out which add-ons were installed, removed, updated, enabled, or disabled at application startup.
... for example, to take a look at the add-ons that were disabled at startup: components.utils.import("resource://gre/modules/addonmanager.jsm"); let addonids = addonmanager.getstartupchanges(addonmanager.startup_change_disabled); if (addonids.length > 0) { // addonids is now an array of the add-on ids that have been disabled alert("note: " + addonids.length + " add-ons have been disabled."); } open add-on manager tab the add-on manager tab can be opened programatically with the function browseropenaddonsmgr which is available on chrome window of "navigator:browser" type.

CustomizableUI.jsm
this is often when the window has opened, but in the case of add-ons, could fire when the node has just been registered with customizableui after an add-on update or disable/enable sequence.
...this is useful for add-ons that get disabled and then re-enabled (e.g., when they update).

Bootstrapping a new locale
cd mozilla-1.9.1 echo "mk_add_options moz_objdir=@topsrcdir@/../fx-ab-dc" > .mozconfig echo "ac_add_options --with-l10n-base=../" >> .mozconfig echo "ac_add_options --disable-compile-environment" >> .mozconfig echo "ac_add_options --enable-application=browser" >> .mozconfig make -f client.mk configure create a language pack first, we'll create a build directory.
... ../mozilla/configure --disable-compile-environment --enable-application=browser whenever you need a build directory, these are the steps that you need to do to initialize it.

Leak-hunting strategies and tips
for example, on fedora, these are in *-debuginfo rpms (which are available in yum repositories that are disabled by default, but easily enabled by editing the system configuration).
... tips disabling arena allocation with many lower-level leak tools (particularly trace-malloc based ones, like leaksoup) it can be helpful to disable arena allocation of objects that you're interested in, when possible, so that each object is allocated with a separate call to malloc.

Profiling with Xperf
for 64-bit windows 7 or vista, you'll need to do a registry tweak and then restart to enable stack walking: reg add "hklm\system\currentcontrolset\control\session manager\memory management" -v disablepagingexecutive -d 0x1 -t reg_dword -f symbol server setup with the latest versions of the windows performance toolkit, you can modify the symbol path directly from within the program via the trace menu.
... building firefox to get good data from a firefox build, it is important to build with the following options in your mozconfig: export cflags="-oy-" export cxxflags="-oy-" this disables frame-pointer optimization which lets xperf do a much better job unwinding the stack.

Leak And Bloat Tests
f("mail.smtp.defaultserver", "smtp1"); user_pref("mail.smtpserver.smtp1.hostname", "tinderbox"); user_pref("mail.smtpserver.smtp1.username", "tinderbox"); user_pref("mail.smtpservers", "smtp1"); user_pref("mail.startup.enabledmailcheckonce", true); user_pref("mailnews.start_page_override.mstone", "1.9pre"); user_pref("mail.shell.checkdefaultclient", false); // ensure os x and outlook/oe books are disabled user_pref("ldap_2.servers.osx.position", 0); user_pref("ldap_2.servers.oe.position", 0); preferences in generated profile, but not set: user_pref("mail.root.none", "/home/moztest/.thunderbird/t7i1txfw.minimum/mail"); user_pref("mail.root.pop3", "/home/moztest/.thunderbird/t7i1txfw.minimum/mail"); user_pref("mail.server.server1.directory", "/home/moztest/.thunderbird/t7i1txfw.minimum/mail/local ...
...mum/mail/tinderbox"); user_pref("mail.attachment.store.version", 1); user_pref("mail.folder.views.version", 1); user_pref("mail.spam.version", 1); user_pref("mailnews.quotingprefs.version", 1); user_pref("mailnews.ui.threadpane.version", 6); changes to leak and bloat tests date and time (pst) description approx effect on numbers pre dec 2008 initial version - 2008/12/07 11:20 bug 463594 disabled os x and outlook address books via the preference settings mac lk -56.2kb.

NSS_3.11.10_release_notes.html
bug 291384: certutil -k behavior doesn't match usage bug 374247: modutil -disable command not disabling modules' slots bug 384459: certification path validation fails when authority key identifier extension contains key identifier bug 385946: can't import certificate into cert database in fips mode (certutil).
...n authority certificate to nss bug 431381: add network solutions certificate authority root to nss bug 431621: add diginotar root ca root to nss bug 431772: add network solutions and diginotar root certs to nss bug 442912: fix nssckbi version number on 3.11 branch bug 443045: fix pk11_generatekeypair for ecc keys on the 3.11 branch bug 444850: nss misbehaves badly in the presence of a disabled pkcs#11 slot bug 462948: lint warnings for source files that include keythi.h documentation for a list of the primary nss documentation pages on mozilla.org, see nss documentation.

NSS 3.12.4 release notes
s in signtool on windows bug 485155: nss_enable_pkix_verify=1 causes sec_error_unknown_issuer errors bug 485527: rename the _x86_ macro in lib/freebl bug 485658: vfychain -p reports revoked cert bug 485745: modify fipstest.c to support cavs 7.1 drbg testing bug 486304: cert7.db/cert8.db corruption when importing a large certificate (>64k) bug 486405: allocator mismatches in pk12util.c bug 486537: disable execstack in freebl x86_64 builds on linux bug 486698: facilitate the building of major components independently and in a chain manner by downstream distributions bug 486999: calling ssl_setsockpeerid a second time leaks the previous value bug 487007: make lib/jar conform to nss coding style bug 487162: ckfw/capi build failure on windows bug 487239: nssutil.rc doesn't compile on wince bug 487254:...
...vms (a.k.a., openvms) from nss bug 491174: cert_pkixverifycert reports wrong error code when ee cert is expired bug 491919: cert.h doesn't have valid functions prototypes bug 492131: a failure to import a cert from a p12 file leaves error code set to zero bug 492385: crash freeing named crl entry on shutdown bug 493135: bltest crashes if it can't open the input file bug 493364: can't build with --disable-dbm option when not cross-compiling bug 493693: sse2 instructions for bignum are not implemented on os/2 bug 493912: sqlite3_reset should be invoked in sdb_findobjectsinit when error occurs bug 494073: update rsa/dsa powerupself tests to be compliant for 2011 bug 494087: passing null as the value of cert_pi_trustanchors causes a crash in cert_pkixsetparam bug 494107: during nss_nodb_init(), softo...

NSS 3.20 release notes
new types in sslt.h ssldhegrouptype - enumerates the set of dhe parameters embedded in nss that can be used with function ssl_dhegroupprefset new macros in ssl.h ssl_enable_server_dhe - a socket option user to enable or disable dhe ciphersuites for a server socket notable changes in nss 3.20 the tls library has been extended to support dhe ciphersuites in server applications.
... for backward compatibility reasons, the server side implementation of the tls library keeps all dhe ciphersuites disabled by default.

NSS 3.27 release notes
the tls 1.3 (draft) protocol can be disabled, by defining symbol nss_disable_tls_1_3 when building nss.
... disabled renegotiation in dtls.

NSS 3.33 release notes
however, tls compression will remain disabled.
... the compile time flag disable_ecc has been removed.

NSS 3.39 release notes
support for these keys is disabled by default but can be enabled using ssl_signatureschemeprefset().
...b5ad6ccf69 cn = oiste wisekey global root gc ca sha-256 fingerprint: 8560f91c3624daba9570b5fea0dbe36ff11a8323be9486854fb3f34a5571198d the following ca certificate was removed: cn = comsign sha-256 fingerprint: ae4457b40d9eda96677b0d3c92d57b5177abd7ac1037958356d1e094518be5f2 the following ca certificates had the websites trust bit disabled: cn = certplus root ca g1 sha-256 fingerprint: 152a402bfcdf2cd548054d2275b39c7fca3ec0978078b0f0ea76e561a6c7433e cn = certplus root ca g2 sha-256 fingerprint: 6cc05041e6445e74696c4cfbc9f80f543b7eabbb44b4ce6f787c6a9971c42f17 cn = opentrust root ca g1 sha-256 fingerprint: 56c77128d98c18d91b4cfdffbc25ee9103d4758ea2abad826a90f3457d460eb4 ...

NSS 3.44 release notes
attribute 1531236 - provide accessor for certcertificate.dercert 1536734 - lib/freebl/crypto_primitives.c assumes a big endian machine 1532384 - in nss test certificates, use @example.com (not @bogus.com) 1538479 - post-handshake messages after async server authentication break when using record layer separation 1521578 - x25519 support in pk11pars.c 1540205 - freebl build fails with -dnss_disable_chachapoly 1532312 - post-handshake auth doesn't interoperate with openssl 1542741 - certutil -f crashes with segmentation fault 1546925 - allow preceding text in try comment 1534468 - expose chacha20 primitive 1418944 - quote cc/cxx variables passed to nspr 1543545 - allow to build nss as a static library 1487597 - early data that arrives before the handshake completes can be read afterwa...
...rds 1548398 - freebl_gtest not building on linux/mac 1548722 - fix some coverity warnings 1540652 - softoken/sdb.c: logically dead code 1549413 - android log lib is not included in build 1537927 - ipsec usage is too restrictive for existing deployments 1549608 - signature fails with dbm disabled 1549848 - allow building nss for ios using gyp 1549847 - nss's sqlite compilation warnings make the build fail on ios 1550041 - freebl not building on ios simulator 1542950 - macos cipher test timeouts this bugzilla query returns all the bugs fixed in nss 3.44: https://bugzilla.mozilla.org/buglist.cgi?resolution=fixed&classification=components&query_format=advanced&product=nss&target_milestone=3.44 compatibility nss 3.44 shared libraries are backward compatible with all older nss 3.x shared...

NSS 3.47 release notes
d ability to distrust certificates issued after a certain date for a specified root cert bug 1588557 - bad debug statement in tls13con.c bug 1579060 - mozilla::pkix tag definitions for issueruniqueid and subjectuniqueid shouldn't have the constructed bit set bug 1583068 - nss 3.47 should pick up fix from bug 1575821 (nspr 4.23) bug 1152625 - support aes hw acceleration on armv8 bug 1549225 - disable dsa signature schemes for tls 1.3 bug 1586947 - pk11_importandreturnprivatekey does not store nickname for ec keys bug 1586456 - unnecessary conditional in pki3hack, pk11load and stanpcertdb bug 1576307 - check mechanism param and param length before casting to mechanism-specific structs bug 1577953 - support longer (up to rfc maximum) hkdf outputs bug 1508776 - remove refcounting from sftk_...
... bug 1542207 - limit policy check on signature algorithms to known algorithms bug 1560329 - drbg: add continuous self-test on entropy source bug 1579290 - asan builds should disable lsan while building bug 1385061 - build nspr tests with nss make; add gyp parameters to build/run nspr tests bug 1577359 - build atob and btoa for thunderbird bug 1579036 - confusing error when trying to export non-existent cert with pk12util bug 1578626 - [cid 1453375] ub: decrement nullptr.

NSS 3.53 release notes
seed will be disabled by default in a future release of nss.
... at that time, users will need to set the compile-time flag (bug 1622033) to disable that deprecation in order to use the algorithm.

NSS 3.55 release notes
bug 1636771 (cve-2020-12403) - explicitly disable multi-part chacha20 (which was not functioning correctly) and more strictly enforce tag length.
... bug 1653202 - fix initialization bug in blapitest when compiled with nss_disable_deprecated_seed.

NSS Config Options
disable: turn off ciphersuites by default without disallowing them by policy.
... ssl-default-lock: turn off the ability for applications to change cipher suite states with ssl_enablecipher, ssl_disablecipher.

SpiderMonkey Build Documentation
mkdir build_dbg.obj cd build_dbg.obj /bin/sh ../configure.in --enable-debug --disable-optimize # use "mozmake" on windows make you can also build debug builds of spidermonkey with the js_gc_zeal option, which adds a new built-in function to spidermonkey that lets you configure zealous garbage collection.
...however, you can build spidermonkey as a static library by specifying the --disable-shared-js flag when you run configure.

JIT Optimization Outcomes
disabled the optimization has been explicitly disallowed.
... cantinlinedisableion unable to inline function call.

JSAPI User Guide
an application can disable automatic uncaught-exception handling using the jsoption_dont_report_uncaught option, but it must then deal with uncaught exceptions explicitly by calling js_isexceptionpending, js_getpendingexception, js_reportpendingexception, and/or js_clearpendingexception whenever a jsapi function returns false or nullptr.
...r = js_encodestring(cx, name); } /* build a string for whether we're entering or exiting */ if (entering) { entexit = "entering"; } else { entexit = "exiting"; } /* output information about the trace */ printf("%s javascript function: %s at time: %ld", entexit, namestr, clock()); } void enabletracing(jscontext *cx) { js_setfunctioncallback(cx, functransition); } void disabletracing(jscontext *cx) { js_setfunctioncallback(cx, nullptr); } ...

JS_GetGCParameter
jsgc_max_nursery_bytes / "maxnurserybytes" maximum size the nursery may grow to, or 0 to disable generational gc.
... jsgc_compaction_enabled / "compactingenabled" non-zero to enable compacting, zero to disable.

JS_SetNativeStackQuota
this article covers features introduced in spidermonkey 17 enable or disable checks to avoid overflowing the c stack.
...to disable stack size checking, pass 0.

JS_SetThreadStackLimit
enable or disable checks to avoid overflowing the c stack.
...to disable stack size checking, pass 0 for limitaddr.

Thread Sanitizer
# note: the use of this flag causes clang to automatically link the tsan runtime :) export ldflags="-fsanitize=thread -fpic -pie" # these three are required by tsan ac_add_options --disable-jemalloc ac_add_options --disable-crashreporter ac_add_options --disable-elf-hack # keep symbols to symbolize tsan traces export moz_debug_symbols=1 ac_add_options --enable-debug-symbols ac_add_options --disable-install-strip # settings for an opt build ac_add_options --enable-optimize="-o2 -gline-tables-only" ac_add_options --disable-debug starting the build process now you start the build ...
... "usage: $0 <dirname>" elif [ -d $1 ] ; then echo "directory $1 already exists" else autoconf2.13 mkdir $1 cd $1 llvm_root="/path/to/llvm" cc="$llvm_root/build/bin/clang" \ cxx="$llvm_root/build/bin/clang++" \ cflags="-fsanitize=thread -fpic -pie" \ cxxflags="-fsanitize=thread -fpic -pie" \ ldflags="-fsanitize=thread -fpic -pie" \ ../configure --disable-debug --enable-optimize="-o2 -gline-tables-only" --enable-llvm-hacks --disable-jemalloc make -j 8 fi using llvm symbolizer for faster/better traces by default, tsan traces are symbolized because otherwise, the runtime suppression list wouldn't work.

Web Replay
advanced options preferences devtools.recordreplay.enablerewinding when disabled, firefox records a page signifcantly faster.
... for example, incremental gcs (a non-deterministic component) work by posting events to the main thread (a deterministic component), so for now incremental gcs are disabled.

WebReplayRoadmap
while the supported features will grow over time, the ui needs to be improved so that features which aren't supported are not shown or are shown in a disabled state.
... while tabs with these features won't (or shouldn't!) crash, the features are disabled and the tab will not be fully usable.

Security and the jar protocol
note: support for the jar: protocol was disabled by default for use from web content beginning in firefox 45, but re-enabled again because it broke the experience of ibm inotes users.
... inotes has since been updated so that it no longer needs remote jars, so they have been disabled again in firefox 55.

Setting up an update server
these changes will need to be made in order to use the locally built mar: put this line in the mozconfig file in root of the build directory (create it if it does not exist): ac_add_options --disable-verify-mar several files contain a line that must be uncommented.
... open them and find this line: #defines['disable_updater_authenticode_check'] = true.

XPCOM changes in Gecko 2.0
previously, whenever gecko detected that the application version had changed, or one or more extensions was added, removed, enabled, or disabled, it was necessary to throw away all existing component registrations, then restart the application (what we call the "extension manager restart") during its startup process.
...xpcnativewrapper changes you can't disable xpcnativewrappers from your manifest specifying xpcnativewrappers=no in your manifest (that is, xpcnativewrapper automation) is no longer supported.

nsIDNSService
speculative requests return errors if prefetching is disabled by configuration.
... resolve_disable_ipv6 (1 << 5) if this flag is set, only ipv4 addresses will be returned by asyncresolve() and resolve().

nsIDOMXULElement
click() unless the element is disabled, sends mouse events that simulate the effect of clicking the mouse on the element, then calls the docommand() method.
...focus() attempts to set focus to the element; will not work for example for disabled elements.

nsIFaviconService
this function will not save favicons for non-bookmarked urls when history is disabled (expiration time is 0 days).
... the rest of the functions here will always store favicons even when history is disabled.

nsIMarkupDocumentViewer
obsolete since gecko 1.8 authorstyledisabled boolean disable entire author style level (including html presentation hints) bidicharacterset octet whether to force the user's character set 1 - use the document character set 2 - use the character set chosen by the user.
... bidisupport octet whether to use platform bidi support or mozilla's bidi support 1 - use mozilla's bidi support 2 - use the platform bidi support 3 - disable bidi support.

nsINavHistoryService
historydisabled boolean true if history is disabled.
... currently, history is disabled if the browser.history_expire_days pref is "0".

nsIPrincipal
void checkmayload(in nsiuri uri, in boolean report); void disablecapability(in string capability, inout voidptr annotation); native code only!
... native code only!disablecapability void disablecapability( in string capability, inout voidptr annotation ); parameters capability missing description annotation missing description native code only!enablecapability void enablecapability( in string capability, inout voidptr annotation ); parameters capability missing description annotation missing description equals() returns...

nsIProtocolProxyService
after filters have been run, any disabled or disallowed proxies will be removed from the list.
... a proxy is disabled if it had previously failed-over to another proxy (see getfailoverforproxy()).

nsIRequest
validate_never 1 << 12 disables validation of expired content.
... validate_once_per_session 1 << 13 disables validation of expired content, provided it has already been validated (at least once) since the start of this session.

Mozilla
benchmarking debug builds (--enable-debug) and non-optimized builds (--disable-optimize) are much slower.
...as all tests, they won't work in a build with tests disabled (--disable-tests).

Browser Console - Firefox Developer Tools
nb: the browser console command line (to execute javascript expressions) is disabled by default.
... browser console command line the browser console command line is disabled by default.

Browser Toolbox - Firefox Developer Tools
there is a way to disable this behavior.
... click the toolbox menu and select disable popup auto-hide.

Ignore a source - Firefox Developer Tools
you can enable or disable ignoring a source file in a couple of ways: in the source list pane, right-click the filename and choose ignore source (or unignore source).
... when a source file is ignored: any breakpoints it may have defined are disabled.

Set a breakpoint - Firefox Developer Tools
other context menu options worth mentioning are: disable breakpoint: turn it off, but don't remove it completely.
... disable breakpoints on line and remove breakpoints on line: remove or disable column breakpoints.

Debugger.Memory - Firefox Developer Tools
this accessor property has both a getter and setter: assigning to it enables or disables the allocation site tracking.
...allocation site tracking is initially disabled in a new debugger.

Debugger - Firefox Developer Tools
it is an accessor property with a getter and setter: assigning to it enables or disables this debugger instance; reading it produces true if the instance is enabled, or false otherwise.
...the webassembly text generation will be disabled.

Debugger.Object - Firefox Developer Tools
the watchpoint consultshandler's properties each time an event occurs, so adding methods to or removing methods fromhandler after setting the watchpoint enables or disables reporting of the corresponding events.
... the new watchpoint belongs to the debugger instance to which this debugger.object instance belongs; disabling the debugger instance disables this watchpoint.

Responsive Design Mode - Firefox Developer Tools
dpr (pixel ratio) - beginning with firefox 68, the dpr is no longer editable; create a custom device in order to change the dpr throttling - a drop-down list where you can select the connection throttling to apply, for example 2g, 3g, or lte enable/disable touch simulation - toggles whether or not responsive design mode simulates touch events.
...(note that when touch simulation is enabled, this toolbar icon is blue; when simulation is disabled, it is black.

Shader Editor - Firefox Developer Tools
here's another screencast, showing how you can use the shader editor for complex applications (in this case, the unreal engine demo): opening the shader editor the shader editor is disabled by default.
...if you hover over an entry in the list, the geometry drawn by that program is highlighted in red: if you click the eyeball icon just left of the program's entry, that program is disabled.

Tips - Firefox Developer Tools
check or uncheck the different tools to enable or disable them.
... check "disable http cache (when toolbox is open)" in the settings to disable the network cache while debugging network issues.

about:debugging - Firefox Developer Tools
next, disable every debugging setting already activated and repeat the steps described before.
... the major advantages of this method, compared with installing an add-on from an xpi, are: you don't have to rebuild an xpi and reinstall when you change the add-on's code; you can load an add-on without signing it and without needing to disable signing.

AudioTrackList.onchange - Web APIs
the audiotracklist property onchange is an event handler which is called when the change event occurs, indicating that one or more of the audiotracks in the audiotracklist have been enabled or disabled.
... syntax audiotracklist.onchange = eventhandler; value set onchange to a function that should be called whenever tracks are enabled or disabled on the media element.

AudioTrackList - Web APIs
this occurs when one or more tracks have been enabled or disabled by their enabled flag being changed.
... change fired when a track has been enabled or disabled.

BaseAudioContext.createPeriodicWave() - Web APIs
constraints optional an dictionary object that specifies whether normalization should be disabled (if not specified, normalization is enabled by default.) it takes one property: disablenormalization: if set to true, normalization is disabled for the periodic wave.
... var real = new float32array(2); var imag = new float32array(2); var ac = new audiocontext(); var osc = ac.createoscillator(); real[0] = 0; imag[0] = 0; real[1] = 1; imag[1] = 0; var wave = ac.createperiodicwave(real, imag, {disablenormalization: true}); osc.setperiodicwave(wave); osc.connect(ac.destination); osc.start(); osc.stop(2); this works because a sound that contains only a fundamental tone is by definition a sine wave here, we create a periodicwave with two values.

BasicCardRequest.supportedNetworks - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetsupportednetworkschrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.billingAddress - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbillingaddresschrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.cardNumber - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcardnumberchrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.cardSecurityCode - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcardsecuritycodechrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.cardholderName - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcardholdernamechrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.expiryMonth - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetexpirymonthchrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

BasicCardResponse.expiryYear - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetexpiryyearchrome no support noedge no support ≤18 — 79firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
... webview android no support nochrome android full support 57firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

Body.arrayBuffer() - Web APIs
once getdata() has finished running, we start the audio source playing with start(0), then disable the play button so it can't be clicked again when it is already playing (this would cause an error.) function getdata() { source = audioctx.createbuffersource(); var myrequest = new request('viper.ogg'); fetch(myrequest).then(function(response) { return response.arraybuffer(); }).then(function(buffer) { audioctx.decodeaudiodata(buffer, function(decodeddata) { source.buffe...
...r = decodeddata; source.connect(audioctx.destination); }); }); }; // wire up buttons to stop and play audio play.onclick = function() { getdata(); source.start(0); play.setattribute('disabled', 'disabled'); } reading files the response() constructor accepts files and blobs, so it may be used to read a file into other formats.

DataTransferItemList.length - Web APIs
syntax length = datatransferitemlist.length; value the number of drag data items in the list, or 0 if the list is empty or disabled.
... the drag item list is considered to be disabled if the item list's datatransfer object is not associated with a drag data store.

Element: contextmenu event - Web APIs
any right-click event that is not disabled (by calling the event's preventdefault() method) will result in a contextmenu event being fired at the targeted element.
... html <p id="nocontextmenu">the context menu has been disabled on this paragraph.</p> <p>but it has not been disabled on this one.</p> javascript nocontext = document.getelementbyid('nocontextmenu'); nocontext.addeventlistener('contextmenu', e => { e.preventdefault(); }); result specifications specification status comment html living standardthe definition of 'contextmenu' in that specification.

HTMLButtonElement - Web APIs
htmlbuttonelement.disabled is a boolean indicating whether or not the control is disabled, meaning that it does not accept any clicks.
...it is false if any conditions bar it from constraint validation, including: its type property is reset or button; it has a <datalist> ancestor; or the disabled property is set to true.

HTMLFieldSetElement - Web APIs
htmlfieldsetelement.disabled a boolean reflecting the disabled html attribute, indicating whether the user can interact with the control.
... recommendation the following properties have been added: disabled, elements, name, type, valdiationmessage, validity, and willvalidate.

HTMLIFrameElement.allowPaymentRequest - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetallowpaymentrequest experimentalchrome full support 60disabled full support 60disabled disabled from version 60: this feature is behind the #web-payments preference (needs to be set to enabled).
... webview android no support nochrome android full support 61disabled full support 61disabled disabled from version 61: this feature is behind the #web-payments preference (needs to be set to enabled).

HTMLImageElement.complete - Web APIs
the image is "broken;" that is, the image failed to load due to an error or because image loading is disabled.
...ntrolselem = lightboxelem.queryselector(".toolbar"); async function loadimage(url, elem) { return new promise((resolve, reject) => { elem.onload = () => resolve(elem); elem.onerror = reject; elem.src = url; }); } async function lightbox(url) { lightboxelem.style.display = "block"; await loadimage("https://somesite.net/huge-image.jpg", lightboximgelem); lightboxcontrolselem.disabled = false; } /* ...

HTMLImageElement.currentSrc - Web APIs
roidfirefox for androidopera for androidsafari on iossamsung internetcurrentsrc experimentalchrome full support 45edge full support 13firefox full support 38 full support 38 no support 32 — 52disabled disabled from version 32 until version 52 (exclusive): this feature is behind the dom.image.srcset.enabled preference (needs to be set to true).
...ri full support 10.1webview android full support 45chrome android full support 45firefox android full support 38 full support 38 no support 32 — 52disabled disabled from version 32 until version 52 (exclusive): this feature is behind the dom.image.srcset.enabled preference (needs to be set to true).

HTMLImageElement.sizes - Web APIs
r androidfirefox for androidopera for androidsafari on iossamsung internetsizes experimentalchrome full support 45edge full support 13firefox full support 38 full support 38 no support 33 — 52disabled disabled from version 33 until version 52 (exclusive): this feature is behind the dom.image.picture.enabled preference (needs to be set to true).
...safari no support nowebview android full support 45chrome android full support 45firefox android full support 38 full support 38 no support 33 — 52disabled disabled from version 33 until version 52 (exclusive): this feature is behind the dom.image.picture.enabled preference (needs to be set to true).

HTMLImageElement.srcset - Web APIs
androidfirefox for androidopera for androidsafari on iossamsung internetsrcset experimentalchrome full support 34edge full support 12firefox full support 38 full support 38 no support 32 — 52disabled disabled from version 32 until version 52 (exclusive): this feature is behind the dom.image.srcset.enabled preference (needs to be set to true).
...afari full support 8webview android full support 37chrome android full support 34firefox android full support 38 full support 38 no support 32 — 52disabled disabled from version 32 until version 52 (exclusive): this feature is behind the dom.image.srcset.enabled preference (needs to be set to true).

HTMLInputElement - Web APIs
disabled boolean: returns / sets the element's disabled attribute, indicating that the control is not available for interaction.
...it is false if any conditions bar it from constraint validation, including: its type is hidden, reset, or button; it has a <datalist> ancestor; its disabled property is true.

HTMLOptionElement - Web APIs
htmloptionelement.disabled is a boolean representing the value of the disabled html attribute, which indicates that the option is unavailable to be selected.
... an option can also be disabled if it is a child of an <optgroup> element that is disabled.

HTMLSelectElement - Web APIs
htmlselectelement.disabled a boolean reflecting the disabled html attribute, which indicates whether the control is disabled.
... if it is disabled, it does not accept clicks.

HTMLTextAreaElement - Web APIs
disabled boolean: returns / sets the element's disabled attribute, indicating that the control is not available for interaction.
...false if any conditions bar it from constraint validation, including its readonly or disabled property is true.

IDBIndex - Web APIs
35safari ios full support 10.3samsung internet android full support 5.0getallkeyschrome full support 48edge full support ≤18firefox full support 44disabled full support 44disabled disabled from version 44: this feature is behind the dom.indexeddb.experimental preference.
...upport noopera full support 35safari full support 10.1webview android full support 48chrome android full support 48firefox android full support 44disabled full support 44disabled disabled from version 44: this feature is behind the dom.indexeddb.experimental preference.

MediaDevices.getUserMedia() - Web APIs
securityerror user media support is disabled on the document on which getusermedia() was called.
... the mechanism by which user media support is enabled and disabled is left up to the individual user agent.

NavigationPreloadManager - Web APIs
navigationpreloadmanager.disable() disables navigation preloading and returns a promise that resolves.
... samsung internet android full support 8.0disable experimentalchrome full support 62edge full support 18firefox no support nonotes no support nonotes notes implementation tracked in bug 1290958ie ?

PaymentRequest.abort() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetabort()chrome full support 61edge full support 15firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 53firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.canMakePayment() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcanmakepayment()chrome full support 61edge full support 16firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 53firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.prototype.id - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetidchrome full support 61edge full support 16firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 60firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.onshippingaddresschange - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetonshippingaddresschangechrome full support 61edge full support 15firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 53firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.onshippingoptionchange - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetonshippingoptionchangechrome full support 61edge full support 15firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 53firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.shippingOption - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetshippingoptionchrome full support 61edge full support 15firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 53firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.shippingType - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetshippingtypechrome full support 61edge full support 15firefox full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...port noopera no support nosafari full support 11.1webview android no support nochrome android full support 55firefox android full support 55notes disabled full support 55notes disabled notes available only in nightly builds.disabled from version 55: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentRequest.payerName - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetpayernamechrome full support 61edge full support 15firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...pport noopera no support nosafari full support yeswebview android no support nochrome android full support 58firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

PaymentResponse.requestId - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetrequestidchrome full support 61edge full support 16firefox full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).
...pport noopera no support nosafari full support yeswebview android no support nochrome android full support 60firefox android full support 56notes disabled full support 56notes disabled notes available only in nightly builds.disabled from version 56: this feature is behind the dom.payments.request.enabled preference (needs to be set to true).

Permissions - Web APIs
safari ios no support nosamsung internet android full support 5.0revoke experimentalnon-standardchrome full support 46edge full support 79firefox full support 51disabled full support 51disabled disabled from version 51: this feature is behind the dom.permissions.revoke.enable preference (needs to be set to true).
... safari no support nowebview android full support 46chrome android full support 46firefox android full support 51disabled full support 51disabled disabled from version 51: this feature is behind the dom.permissions.revoke.enable preference (needs to be set to true).

PushManager.getSubscription() - Web APIs
var pushbutton = document.queryselector('.js-push-button'); pushbutton.disabled = false; if (!subscription) { // we aren’t subscribed to push, so set ui // to allow the user to enable push return; } // keep your server in sync with the latest subscriptionid sendsubscriptiontoserver(subscription); showcurlcommand(subscription); // set your ui to show they have subscribed for // push m...
...essages pushbutton.textcontent = 'disable push messages'; ispushenabled = true; }) .catch(function(err) { window.demo.debug.log('error during getsubscription()', err); }); }); specifications specification status comment push apithe definition of 'getsubscription()' in that specification.

RTCDTMFToneChangeEvent - Web APIs
it appends each tone to a display box as it's played, and, once all tones have been sent, re-enabled a previously-disabled "send" button, allowing the next dmtf string to be entered.
... dtmfsender.addeventlistener("change", function(event) { if (event.tone !== "") { dialstringbox.innertext += event.tone; } else { senddtmfbutton.disabled = false; } }, false); specifications specification status comment webrtc 1.0: real-time communication between browsersthe definition of 'rtcdtmftonechangeevent' in that specification.

RTCDataChannel: close event - Web APIs
dc.addeventlistener("close", ev => { messageinputbox.disabled = true; sendbutton.disabled = true; connectbutton.disabled = false; disconnectbutton.disabled = true; }, false); all this code does in response to receiving the close event is to disable an input box and its "send" button, and to enable the button used to start a call (while disabling the one that ends a call).
... you can also use the onclose event handler property to set a handler for close events: dc.onclose = ev => { messageinputbox.disabled = true; sendbutton.disabled = true; connectbutton.disabled = false; disconnectbutton.disabled = true; } specifications specification status comment webrtc 1.0: real-time communication between browsersthe definition of 'close' in that specification.

RTCDataChannel.onclose - Web APIs
example in this sample from a hypothetical instant messaging client, a data channel is created, then handlers for the open and close events are set up to enable and disable user interface objects based on the state of the channel.
... let pc = new rtcpeerconnection(); let dc = pc.createdatachannel("messagechannel")}}; dc.onopen = function(event) { document.getelementbyid("messagebox").disabled = false; document.getelementbyid("sendbutton").disabled = false; }; dc.onclose = function(event) { document.getelementbyid("messagebox").disabled = true; document.getelementbyid("sendbutton").disabled = true; } /* now negotiate the connection, etc...

RTCDataChannel: open event - Web APIs
dc.addeventlistener("open", ev => { messageinputbox.disabled = false; sendmessagebutton.disabled = false; disconnectbutton.disabled = false; connectbutton.disabled = true; messageinputbox.focus(); }, false); this can also be done by directly setting the value of the channel's onopen event handler property.
... dc.onopen = ev => { messageinputbox.disabled = false; sendmessagebutton.disabled = false; disconnectbutton.disabled = false; connectbutton.disabled = true; messageinputbox.focus(); } ...

RTCPeerConnection: track event - Web APIs
pc = new rtcpeerconnection({ iceservers: [ { urls: "turn:fake.turnserver.url", username: "someusername", credential: "somepassword" } ] }); pc.addeventlistener("track", e => { videoelement.srcobject = e.streams[0]; hangupbutton.disabled = false; }, false); the event handler assigns the new track's first stream to an existing <video> element, identified using the variable videoelement.
... pc.ontrack = e => { videoelement.srcobject = e.streams[0]; hangupbutton.disabled = false; return false; } specifications specification status comment webrtc 1.0: real-time communication between browsersthe definition of 'track' in that specification.

RTCRtpContributingSource.source - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetsourcechrome full support 59edge full support ≤79firefox full support 59disabled full support 59disabled disabled from version 59: this feature is behind the media.peerconnection.rtpsourcesapi.enable preference (needs to be set to true).
... webview android full support 59chrome android full support 59firefox android full support 59disabled full support 59disabled disabled from version 59: this feature is behind the media.peerconnection.rtpsourcesapi.enable preference (needs to be set to true).

RTCRtpTransceiver - Web APIs
each non-disabled srtp media section is always represented by exactly one transceiver.
... stopped indicates whether or not sending and receiving using the paired rtcrtpsender and rtcrtpreceiver has been permanently disabled, either due to sdp offer/answer, or due to a call to stop().

SVGUseElement - Web APIs
if the element does not have a shadow tree (for example, because its uri is invalid or because it has been disabled by conditional processing), then getting this attribute returns null.
...if the element does not have a shadow tree (for example, because its uri is invalid or because it has been disabled by conditional processing), then getting this attribute returns null.

Screen Wake Lock API - Web APIs
it's a good idea to show some feedback on the interface to show if wake lock is active and a way for the user to disable it if they wish.
... if ('wakelock' in navigator) { issupported = true; statuselem.textcontent = 'screen wake lock api supported!'; } else { wakebutton.disabled = true; statuselem.textcontent = 'wake lock is not supported by this browser.'; } requesting a wake lock the following example demonstrates how to request a wakelocksentinel object.

WebGLRenderingContext.cullFace() - Web APIs
examples polygon culling is disabled by default.
... to enable or disable culling, use the enable() and disable() methods with the argument gl.cull_face.

WebGLRenderingContext.depthFunc() - Web APIs
examples the depth testing is disabled by default.
... to enable or disable depth testing, use the enable() and disable() methods with the argument gl.depth_test.

WebGLRenderingContext.enableVertexAttribArray() - Web APIs
you can disable the attribute array by calling disablevertexattribarray().
... either way, since attributes cannot be used unless enabled, and are disabled by default, you need to call enablevertexattribarray() to enable individual attributes so that they can be used.

WebGLRenderingContext.isEnabled() - Web APIs
by default, all capabilities except gl.dither are disabled.
... examples gl.isenabled(gl.stencil_test); // false to activate or deactivate a specific capability, use the webglrenderingcontext.enable() and webglrenderingcontext.disable() methods: gl.enable(gl.stencil_test); gl.disable(gl.stencil_test); specifications specification status comment webgl 1.0the definition of 'isenabled' in that specification.

WebGLRenderingContext.polygonOffset() - Web APIs
examples the polygon offset fill is disabled by default.
... to enable or disable polygon offset fill, use the enable() and disable() methods with the argument gl.polygon_offset_fill.

WebGLRenderingContext.sampleCoverage() - Web APIs
examples multi-sampling is disabled by default.
... to enable or disable multi-sampling, use the enable() and disable() methods with the argument gl.sample_coverage and gl.sample_alpha_to_coverage.

WebGL best practices - Web APIs
and to a lesser degree, vao attachments (vertexattribpointer, disable/enablevertexattribarray) drawing from static, unchanging vaos is faster than mutating the same vao for every draw call.
... always keep vertex attrib 0 array-enabled if you draw with vertex attrib 0 array disabled, you will force the browser to do complicated emulation when running on desktop opengl (such as on macos).

window.cancelIdleCallback() - Web APIs
dopera for androidsafari on iossamsung internetcancelidlecallback experimentalchrome full support 47edge full support 79firefox full support 55 full support 55 full support 53disabled disabled from version 53: this feature is behind the dom.requestidlecallback.enabled preference (needs to be set to true).
... no support nowebview android full support 47chrome android full support 47firefox android full support 55 full support 55 full support 53disabled disabled from version 53: this feature is behind the dom.requestidlecallback.enabled preference (needs to be set to true).

Window.event - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung interneteventchrome full support 1edge full support 12firefox full support 63notes disabled full support 63notes disabled notes this was briefly enabled by default in 65, then removed again while related compatibility issues are sorted out (see bug 1520756).disabled from version 63: this feature is behind the dom.window.event.enabled preference (needs to be set to true).
...port 4opera full support 7safari full support 1.1webview android full support 1chrome android full support 18firefox android full support 63notes disabled full support 63notes disabled notes this was briefly enabled by default in 65, then removed again while related compatibility issues are sorted out (see bug 1520756).disabled from version 63: this feature is behind the dom.window.event.enabled preference (needs to be set to true).

Window.getAttention() - Web APIs
syntax window.getattention(); notes on windows, the taskbar button for the window flashes, if this hasn't been disabled by the user.
... the function is disabled for web content.

Privileged features - Web APIs
mozilla and firefox users can force new windows to always render the titlebar by setting dom.disable_window_open_feature.titlebar to true in about:config or in their user.js file.
... mozilla and firefox users can force new windows to always have a close button by setting dom.disable_window_open_feature.close to true in about:config or in their user.js file.

window.requestIdleCallback() - Web APIs
no support 53 — 55notes notes implemented but disabled by default.ie no support noopera full support 34safari no support nowebview android full support 47chrome android full support 47firefox android full support...
... no support 53 — 55notes notes implemented but disabled by default.opera android full support 34safari ios no support nosamsung internet android full support 5.0legend full support full support no support no supportexperimental.

XRSystem: devicechange event - Web APIs
if (navigator.xr) { navigator.xr.addeventlistener("devicechange", event => { navigator.xr.issessionsupported("immersive-vr") .then(immersiveok) => { if (immersiveok) { enablexrbutton.disabled = false; } else { enablexrbutton.disabled = true; } }); }); } when devicechange is received, the handler set up in this code calls the xr method issessionsupported() to find out if there's a device available that can handle immersive vr presentations.
... if there is, the button to enter xr mode is enabled; otherwise it's disabled.

XRSystem - Web APIs
if (navigator.xr) { immersivebutton.addeventlistener("click", onbuttonclicked); navigator.xr.issessionsupported('immersive-vr') .then((issupported) => { if (issupported) { immersivebutton.disabled = false; } else { immersivebutton.disabled = true; }); } function onbuttonclicked() { if (!xrsession) { navigator.xr.requestsession('immersive-vr') .then(() => { // onsessionstarted() not shown for reasons of brevity and clarity.
...if immersive vr isn't available, the button is disabled to prevent its use.

XRWebGLLayerInit.antialias - Web APIs
example in this example, before creating a new xrwebgllayer to use for rendering, the value of a user preference from a configuration interface is obtained using a function called getpreferencevalue() to determine whether the user has enabled or disabled anti-aliasing support; this is passed into the constructor.
... let options = { antialias: getpreferencevalue("antialiasing") }; let gllayer = new xrwebgllayer(xrsession, gl, options); if (gllayer) { xrsession.updaterenderstate({ baselayer: gllayer }); } offering the user features such as the ability to enable or disable things like anti-aliasing can provide them with optiions to try when your app isn't performing as well as they'd like.

msCaching - Web APIs
syntax cachestate = object.mscaching values type: domstring property value description auto disables caching for stream or ms-stream data.
... disabled disables caching for any data.

msPutPropertyEnabled - Web APIs
the msputpropertyenabled method sets whether a given property in the style object is enabled or disabled.
...false = disable the property.

An overview of accessible web applications and widgets - Accessibility
states describe the current interaction state of an element, informing the assistive technology if it is busy, disabled, selected, or hidden.
...examples include (but are certainly not limited to): aria-checked: indicates the state of a checkbox or radio button aria-disabled: indicates that an element is visible, but not editable or otherwise operable aria-grabbed: indicates the 'grabbed' state of an object in a drag-and-drop operation (for a full list of aria states, consult the aria list of states and properties.) developers should use aria states to indicate the state of ui widget elements and use css attribute selectors to alter the visual appearance based o...

Keyboard-navigable JavaScript widgets - Accessibility
<li id="underline" tabindex="-1">underlined</li> </ul> </li> <li id="mb1_menu3" tabindex="-1"> justification <ul id="justificationmenu" title="justication" tabindex="-1"> <li id="left" tabindex="-1">left</li> <li id="center" tabindex="-1">centered</li> <li id="right" tabindex="-1">right</li> <li id="justify" tabindex="-1">justify</li> </ul> </li> </ul> disabled controls when a custom control becomes disabled, remove it from the tab order by setting tabindex="-1".
... note that disabled items within a grouped widget (such as menu items in a menu) should remain navigable using arrow keys.

Operable - Accessibility
2.3.3 animations from interactions (aaa) added in 2.1 allow users to disable animations from interactions (unless the animation is essential).
... understanding label in name 2.5.4 motion actuation (a) added in 2.1 ensure that for functionality that can be triggered by a) device motion (like shaking, tilting) or b) user gestures detected by device sensors (including a camera) that both of the following are true: 1) motion actuation can be disabled, and 2) the functionality can be operated without using device motion or user gestures.

::slotted() - CSS: Cascading Style Sheets
chrome for androidfirefox for androidopera for androidsafari on iossamsung internet::slottedchrome full support 50edge full support 79firefox full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...fari full support 10webview android full support 50chrome android full support 50firefox android full support 63 full support 63 no support 59 — 63disabled disabled from version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).

:host() - CSS: Cascading Style Sheets
ewchrome for androidfirefox for androidopera for androidsafari on iossamsung internet:host()chrome full support 54edge full support 79firefox full support 63 full support 63 no support 61 — 63disabled disabled from version 61 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...> .local-child) and styling slotted content (::slotted) is buggy.webview android full support 54chrome android full support 54firefox android full support 63 full support 63 no support 61 — 63disabled disabled from version 61 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).

:host - CSS: Cascading Style Sheets
viewchrome for androidfirefox for androidopera for androidsafari on iossamsung internet:hostchrome full support 54edge full support 79firefox full support 63 full support 63 no support 61 — 63disabled disabled from version 61 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).
...fari full support 10webview android full support 54chrome android full support 54firefox android full support 63 full support 63 no support 61 — 63disabled disabled from version 61 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true).

:scope - CSS: Cascading Style Sheets
no support 20 — 32disabled disabled from version 20 until version 32 (exclusive): this feature is behind the layout.css.scope-pseudo.enabled preference (needs to be set to true).
... full support 20disabled disabled from version 20: this feature is behind the layout.css.scope-pseudo.enabled preference (needs to be set to true).

CSS Grid Layout and Progressive Enhancement - CSS: Cascading Style Sheets
by default, grid prefixes are disabled, but you can enable it with grid: true option.
... autoprefixer({ grid: 'autoplace' }) grid prefixes are disabled by default because some properties can’t be prefixed.

Mozilla CSS extensions - CSS: Cascading Style Sheets
-block eg@:- bug 331432 ::-moz-anonymous-positioned-block :-moz-any :-moz-any-link [matches :link and :visited] :-moz-broken ::-moz-canvas ::-moz-color-swatch ::-moz-cell-content :-moz-drag-over f – i :-moz-first-node ::-moz-focus-inner ::-moz-focus-outer :-moz-focusring :-moz-full-screen :-moz-full-screen-ancestor :-moz-handler-blocked :-moz-handler-crashed :-moz-handler-disabled ::-moz-inline-table l :-moz-last-node :-moz-list-bullet :-moz-list-number :-moz-loading :-moz-locale-dir(ltr) :-moz-locale-dir(rtl) :-moz-lwtheme :-moz-lwtheme-brighttext :-moz-lwtheme-darktext n – r :-moz-native-anonymous :-moz-only-whitespace ::-moz-page ::-moz-page-sequence ::-moz-pagebreak ::-moz-pagecontent :-moz-placeholderobsolete since gecko 51 ::-moz-plac...
...::-moz-table-row ::-moz-table-row-group :-moz-tree-cell :-moz-tree-cell-text :-moz-tree-cell-text(hover) :-moz-tree-checkbox :-moz-tree-column :-moz-tree-drop-feedback :-moz-tree-image :-moz-tree-indentation :-moz-tree-line :-moz-tree-progressmeter :-moz-tree-row :-moz-tree-row(hover) :-moz-tree-separator :-moz-tree-twisty u – x :-moz-ui-invalid :-moz-ui-valid :-moz-user-disabled ::-moz-viewport ::-moz-viewport-scroll :-moz-window-inactive ::-moz-xul-anonymous-block at-rules @-moz-document media features -moz-mac-graphite-theme -moz-maemo-classic -moz-device-pixel-ratio -moz-os-version -moz-scrollbar-end-backward -moz-scrollbar-end-forward -moz-scrollbar-start-backward -moz-scrollbar-start-forward -moz-scrollbar-thumb-proportional -moz-touch-en...

Pseudo-classes - CSS: Cascading Style Sheets
index of standard pseudo-classes :active :any-link :blank :checked :current :default :defined :dir() :disabled :drop :empty :enabled :first :first-child :first-of-type :fullscreen :future :focus :focus-visible :focus-within :has() :host :host() :host-context() :hover :indeterminate :in-range :invalid :is() :lang() :last-child :last-of-type :left :link :local-link :not() :nth-child() :nth-col() :nth-last-child() :nth-last-col() :nth-last-of-type() :nth-...
... defined the syntax of :enabled, :disabled, :checked, and :indeterminate, but without the associated semantic meaning.

animation-delay - CSS: Cascading Style Sheets
full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 44prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).
... 18prefixed prefixed implemented with the vendor prefix: -webkit-firefox android full support 16 full support 16 full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 44prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).

animation-direction - CSS: Cascading Style Sheets
12prefixed prefixed implemented with the vendor prefix: -webkit-firefox full support 16 full support 16 full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 44prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).
... 18prefixed prefixed implemented with the vendor prefix: -webkit-firefox android full support 16 full support 16 full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 44prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).

aspect-ratio - CSS: Cascading Style Sheets
mapped valuesedge partial support 79notes partial support 79notes notes edge 79 adds internal support only for mapped valuesfirefox partial support 71notes partial support 71notes notes firefox 71 adds internal support only for mapped values no support 69 — 71notes disabled notes firefox 69 adds internal support only for mapped valuesdisabled from version 69 until version 71 (exclusive): this feature is behind the layout.css.width-and-height-map-to-aspect-ratio.enabled preference (needs to be set to true).
... no support nointernal mapping of width and height experimentalchrome full support 79edge full support 79firefox full support 71 full support 71 no support 69 — 71disabled disabled from version 69 until version 71 (exclusive): this feature is behind the layout.css.width-and-height-map-to-aspect-ratio.enabled preference (needs to be set to true).

box-direction - CSS: Cascading Style Sheets
ix: -webkit-firefox full support 1prefixed full support 1prefixed prefixed implemented with the vendor prefix: -moz- full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 48prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 48: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).
...kit-firefox android full support 4prefixed full support 4prefixed prefixed implemented with the vendor prefix: -moz- full support 49prefixed prefixed implemented with the vendor prefix: -webkit- full support 48prefixed disabled prefixed implemented with the vendor prefix: -webkit-disabled from version 48: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true).

font-feature-settings - CSS: Cascading Style Sheets
<feature-tag-value> when rendering text, the list of opentype feature tag value is passed to the text layout engine to enable or disable font features.
...p alternate glyphs */ .smallcaps { font-feature-settings: "smcp" on; } /* convert both upper and lowercase to small caps (affects punctuation also) */ .allsmallcaps { font-feature-settings: "c2sc", "smcp"; } /* use zeros with a slash through them to differentiate from "o" */ .nicezero { font-feature-settings: "zero"; } /* enable historical forms */ .hist { font-feature-settings: "hist"; } /* disable common ligatures, usually on by default */ .noligs { font-feature-settings: "liga" 0; } /* enable tabular (monospaced) figures */ td.tabular { font-feature-settings: "tnum"; } /* enable automatic fractions */ .fractions { font-feature-settings: "frac"; } /* use the second available swash character */ .swash { font-feature-settings: "swsh" 2; } /* enable stylistic set 7 */ .fancystyle { font...

font-kerning - CSS: Cascading Style Sheets
for example, some browsers will disable kerning on small fonts, since applying it could harm the readability of text.
... none font kerning information stored in the font is disabled.

font-variant-caps - CSS: Cascading Style Sheets
or androidfirefox for androidopera for androidsafari on iossamsung internetfont-variant-capschrome full support 52edge full support 79firefox full support 34 full support 34 no support 24 — 34disabled disabled from version 24 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
...safari no support nowebview android full support 52chrome android full support 52firefox android full support 34 full support 34 no support 24 — 34disabled disabled from version 24 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).

font-variant-position - CSS: Cascading Style Sheets
or androidfirefox for androidopera for androidsafari on iossamsung internetfont-variant-positionchrome no support noedge no support nofirefox full support 34 full support 34 no support 24 — 34disabled disabled from version 24 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
... nosafari no support nowebview android no support nochrome android no support nofirefox android full support 34 full support 34 no support 24 — 34disabled disabled from version 24 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).

font-variant - CSS: Cascading Style Sheets
full support 1.0css fonts module level 3 shorthandchrome full support 52edge full support 79firefox full support 34 full support 34 no support 33 — 34disabled disabled from version 33 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).
...ari full support 9.1webview android full support 52chrome android full support 52firefox android full support 34 full support 34 no support 33 — 34disabled disabled from version 33 until version 34 (exclusive): this feature is behind the layout.css.font-features.enabled preference (needs to be set to true).

pointer-events - CSS: Cascading Style Sheets
formal definition initial valueautoapplies toall elementsinheritedyescomputed valueas specifiedanimation typediscrete formal syntax auto | none | visiblepainted | visiblefill | visiblestroke | visible | painted | fill | stroke | all | inherit examples disabling pointer events on all images this example disables pointer events (clicking, dragging, hovering, etc.) on all images.
... img { pointer-events: none; } disabling pointer events on a single link this example disables pointer events on the link to http://example.com.

position - CSS: Cascading Style Sheets
samsung internet android full support 6.0stickychrome full support 56edge full support 16firefox full support 32 full support 32 no support 26 — 48disabled disabled from version 26 until version 48 (exclusive): this feature is behind the layout.css.sticky.enabled preference (needs to be set to true).
...6.1prefixed prefixed implemented with the vendor prefix: -webkit-webview android full support 56chrome android full support 56firefox android full support 32 full support 32 no support 26 — 48disabled disabled from version 26 until version 48 (exclusive): this feature is behind the layout.css.sticky.enabled preference (needs to be set to true).

text-size-adjust - CSS: Cascading Style Sheets
the text-size-adjust property allows web authors to disable or modify this behavior, as web pages designed with small screens in mind do not need it.
... values none disables the browser's inflation algorithm.

Creating a cross-browser video player - Developer guides
again if a user has javascript disabled, the custom control set will not appear and they can use the browser's default control set unhindered.
...a number of variables pointing to html elements are required: var videocontainer = document.getelementbyid('videocontainer'); var video = document.getelementbyid('video'); var videocontrols = document.getelementbyid('video-controls'); as mentioned earlier, the browser's default controls now need to be disabled, and the custom controls need to be displayed: // hide the default controls video.controls = false; // display the user defined video controls videocontrols.style.display = 'block'; with that done, a variable pointing to each of the buttons is now required: var playpause = document.getelementbyid('playpause'); var stop = document.getelementbyid('stop'); var mute = document.getelementbyid('m...

The HTML autocomplete attribute - HTML: Hypertext Markup Language
note: the autocomplete attribute also controls whether firefox will — unlike other browsers — persist the dynamic disabled state and (if applicable) dynamic checkedness of an <input> element, <textarea> element, or entire <form> across page loads.
...setting the value of the autocomplete attribute to off disables this feature.

HTML attribute reference - HTML: Hypertext Markup Language
allowed values are ltr (left-to-right) or rtl (right-to-left) dirname <input>, <textarea> disabled <button>, <command>, <fieldset>, <input>, <keygen>, <optgroup>, <option>, <select>, <textarea> indicates whether the user can interact with the element.
...required, readonly, disabled) are called boolean attributes.

<content>: The Shadow DOM Content Placeholder element (obsolete) - HTML: Hypertext Markup Language
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcontent deprecatednon-standardchrome full support 35edge full support 79firefox no support 33 — 59disabled no support 33 — 59disabled disabled from version 33 until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true).
... no support noopera full support 26safari no support nowebview android full support 37chrome android full support 37firefox android no support 33 — 59disabled no support 33 — 59disabled disabled from version 33 until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true).

<input type="password"> - HTML: Hypertext Markup Language
<label for="hexid">hex id: </label> <input id="hexid" type="password" pattern="[0-9a-fa-f]{4,8}" title="enter an id consisting of 4-8 hexadecimal digits" autocomplete="new-password"> disabled this boolean attribute indicates that the password field is not available for interaction.
... additionally, disabled field values aren't submitted with the form.

<optgroup> - HTML: Hypertext Markup Language
disabled if this boolean attribute is set, none of the items in this option group is selectable.
... examples <select> <optgroup label="group 1"> <option>option 1.1</option> </optgroup> <optgroup label="group 2"> <option>option 2.1</option> <option>option 2.2</option> </optgroup> <optgroup label="group 3" disabled> <option>option 3.1</option> <option>option 3.2</option> <option>option 3.3</option> </optgroup> </select> result specifications specification status comment html living standardthe definition of '<optgroup>' in that specification.

<option>: The HTML Option element - HTML: Hypertext Markup Language
disabled if this boolean attribute is set, this option is not checkable.
...if this attribute is not set, the element can still be disabled if one of its ancestors is a disabled <optgroup> element.

HTML documentation index - HTML: Hypertext Markup Language
52 disabled attribute, attributes, constraint validation, forms, required the boolean disabled attribute, when present, makes the element not mutable, focusable, or even submitted with the form.
... 166 <noframes>: the frame fallback element element, frames, html, html frames, obsolete, reference, web, noframes the obsolete html no frames or frame fallback element, <noframes>, provides content to be presented in browsers that don't support (or have disabled support for) the <frame> element.

Large-Allocation - HTTP
this page would be loaded in a new process due to a large-allocation header, however large-allocation process creation is disabled on non-win32 platforms.
...this check can be disabled with the "dom.largeallocation.

X-XSS-Protection - HTTP
although these protections are largely unnecessary in modern browsers when sites implement a strong content-security-policy that disables the use of inline javascript ('unsafe-inline'), they can still provide protections for users of older web browsers that don't yet support csp.
... header type response header forbidden header name no syntax x-xss-protection: 0 x-xss-protection: 1 x-xss-protection: 1; mode=block x-xss-protection: 1; report=<reporting-uri> 0 disables xss filtering.

HTTP response status codes - HTTP
405 method not allowed the request method is known by the server but has been disabled and cannot be used.
...the two mandatory methods, get and head, must never be disabled and should not return this error code.

WebAssembly.CompileError() constructor - JavaScript
bviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jscompileerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Instance() constructor - JavaScript
d webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsinstance() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Instance.prototype.exports - JavaScript
erasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsexportschrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.LinkError() constructor - JavaScript
webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jslinkerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Memory() constructor - JavaScript
oid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsmemory() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0shared flagchrome full support 74edge full support 79firefox full support 78ie no support noopera ful...

WebAssembly.Memory.prototype.buffer - JavaScript
perasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsbufferchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Memory.prototype.grow() - JavaScript
roperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsgrowchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Module() constructor - JavaScript
oid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsmodule() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Module.customSections() - JavaScript
riandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jscustomsectionschrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Module.exports() - JavaScript
erasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsexportschrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Module.imports() - JavaScript
erasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsimportschrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.RuntimeError() constructor - JavaScript
bviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsruntimeerror() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Table() constructor - JavaScript
roid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jstable() constructorchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Table.prototype.get() - JavaScript
eroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsgetchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Table.prototype.grow() - JavaScript
roperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsgrowchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Table.prototype.length - JavaScript
perasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jslengthchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.Table.prototype.set() - JavaScript
eroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jssetchrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.compile() - JavaScript
erasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jscompilechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.instantiate() - JavaScript
afariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsinstantiatechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

WebAssembly.validate() - JavaScript
rasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnode.jsvalidatechrome full support 57edge full support 16firefox full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).ie no support noopera full support 44safari full support 11webview android full support 57chrome android full support 57fire...
...fox android full support 52notes full support 52notes notes disabled in the firefox 52 extended support release (esr).opera android full support 43safari ios full support 11samsung internet android full support 7.0nodejs full support 8.0.0legend full support full support no support no supportsee implementation notes.see implementation notes.

<circle> - SVG: Scalable Vector Graphics
a value lower or equal to zero disables rendering of the circle.
...er-events, shape-rendering, stroke, stroke-dasharray, stroke-dashoffset, stroke-linecap, stroke-linejoin, stroke-miterlimit, stroke-opacity, stroke-width, transform, vector-effect, visibility aria attributes aria-activedescendant, aria-atomic, aria-autocomplete, aria-busy, aria-checked, aria-colcount, aria-colindex, aria-colspan, aria-controls, aria-current, aria-describedby, aria-details, aria-disabled, aria-dropeffect, aria-errormessage, aria-expanded, aria-flowto, aria-grabbed, aria-haspopup, aria-hidden, aria-invalid, aria-keyshortcuts, aria-label, aria-labelledby, aria-level, aria-live, aria-modal, aria-multiline, aria-multiselectable, aria-orientation, aria-owns, aria-placeholder, aria-posinset, aria-pressed, aria-readonly, aria-relevant, aria-required, aria-roledescription, aria-rowcount...

SVG as an Image - SVG: Scalable Vector Graphics
-image gecko-specific contexts additionally, gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) introduced support for using svg in these contexts: css list-style-image css content svg <image> element svg <feimage> element canvas drawimage function restrictions for security purposes, gecko places some restrictions on svg content when it's being used as an image: javascript is disabled.
... platform-native widget styling (based on os theme) is disabled.

Features restricted to secure contexts - Web security
b authentication api 65 in preview (17) in development 60 web bluetooth 56 not supported not supported not supported web midi (see midiaccess, for example) 43 not supported not supported not supported web crypto api 60 79 not supported 75 secure context restrictions that vary by browser some browsers may decide to disable certain apis in non-secure contexts or apply other restrictions/security measures, despite the spec not requiring them.
... <a ping> attribute disabled in non-secure contexts support has been added since firefox 3, but never been enabled by default (behind the browser.send_pings pref).

<xsl:text> - XSLT: Extensible Stylesheet Language Transformations
syntax <xsl:text disable-output-escaping="yes" | "no"> text </xsl:text> required attributes none.
... optional attributes disable-output-escaping (netscape does not serialize the result of transformation - the "output" below - so this attribute is essentially irrelevant in context.

<xsl:value-of> - XSLT: Extensible Stylesheet Language Transformations
syntax <xsl:value-of select=expression disable-output-escaping="yes" | "no" /> required attributes select specifies the xpath expression to be evaluated and written to the output tree.
... optional attributes disable-output-escaping (netscape does not serialize the result of transformation - the "output" below - so this attribute is essentially irrelevant in context.

Window: deviceproximity event - Archive of obsolete content
note: this event has been disabled by default in firefox 62, behind the device.sensors.proximity.enabled preference (bug 1462308).

Window: userproximity event - Archive of obsolete content
bubbles no cancelable no interface userproximityevent target defaultview (window) default action none event handler property window.onuserroximity specification proximity sensor note: this event has been disabled by default in firefox 62, behind the device.sensors.proximity.enabled preference (bug 1462308).

context-menu - Archive of obsolete content
iseditable true if the menu was invoked in an editable element, and that element isn't disabled or read-only.

widget - Archive of obsolete content
this can occur if the window is closed, firefox exits, or the add-on is disabled.

platform/xpcom - Archive of obsolete content
you can override this behavior using the register and unregister options to the factory or service constructor: var xpcom = require('sdk/platform/xpcom'); var factory = xpcom.factory({ contract: contractid, component: helloworld, register: false, unregister: false, }); if you disable automatic registration in this way, you can use the register() function to register factories and services: xpcom.register(factory); you can use the corresponding unregister() function to unregister them, whether or not you have disabled automatic unregistration: xpcom.unregister(factory); you can find out whether a factory or service has been registered by using the isregistered() function: ...

util/match-pattern - Archive of obsolete content
the expression is compiled with the global, ignorecase, and multiline flags disabled.

Release notes - Archive of obsolete content
content scripts in page-mod get detach events when the add-on is disabled or removed.

Getting Started (jpm) - Archive of obsolete content
after installation they'll show up disabled in the list of installed add-ons, noting the missing signature.

Dialogs and Prompts - Archive of obsolete content
programmatic button access if you want to access the accept ("ok") and cancel buttons from script, use this: // disable the ok and cancel btns document.documentelement.getbutton("accept").disabled = true; document.documentelement.getbutton("cancel").disabled = true; links dialog.xml — xbl bindings for <dialog> and <dialogheader> elements.

JavaScript Debugger Service - Archive of obsolete content
var jsd = components.classes["@mozilla.org/js/jsd/debugger-service;1"] .getservice(components.interfaces.jsdidebuggerservice); jsd.on(); // enables the service till firefox 3.6, for 4.x use asyncon if (jsd.ison) jsd.off(); // disables the service hooks jsd operates using the events hook mechanism.

Miscellaneous - Archive of obsolete content
nt.selectionstart); var aftertext = currentvalue.substring(element.selectionend, currentvalue.length); element.value = beforetext + snippet + aftertext; element.focus(); //put the cursor after the inserted text element.setselectionrange(selectionend, selectionend); } inserttext(document.getelementbyid("example"), "the text to be inserted"); disabling javascript programmatically // disable js in the currently active tab from the context of browser.xul gbrowser.docshell.allowjavascript = false; if this isn't your browser, you should save the value and restore it when finished.

Sidebar - Archive of obsolete content
ebnavigation) .queryinterface(components.interfaces.nsidocshelltreeitem) .roottreeitem .queryinterface(components.interfaces.nsiinterfacerequestor) .getinterface(components.interfaces.nsidomwindow); mainwindow.document.getelementbyid("sidebar-box").width=newwidth; } or function setsidebarwidth(newwidth) { window.top.document.getelementbyid("sidebar-box").width=newwidth; } you can also disable the ability to resize it manually, using the mouse, by hiding the sidebar's splitter element.

Displaying web content in an extension without security issues - Archive of obsolete content
here it is most important to disable javascript and plugins.

Extension Versioning, Update and Compatibility - Archive of obsolete content
this can cause add-ons that are disabled for being incompatible to become enabled and add-ons that would normally not install to be installed.

Inline options - Archive of obsolete content
menulist> <menupopup> <menuitem value="500" label="small"/> <menuitem value="800" label="medium"/> <menuitem value="1200" label="large"/> </menupopup> </menulist> </setting> <!-- radio button example (this example would be stored as a boolean) --> <setting pref="extensions.myaddon.options2" type="radio" title="options 2"> <radiogroup> <radio value="false" label="disabled"/> <radio value="true" label="enabled"/> </radiogroup> </setting> <!-- button example - not tied to a preference, but attached to a command --> <setting title="do something" type="control"> <button id="myaddon-button" label="click me" oncommand="alert('thank you!');"/> </setting> setting element changed notifications most of the setting elements (it might be all i havent really look...

Installing Extensions and Themes From Web Pages - Archive of obsolete content
thus you should only use updateenabled to display content in the page to alert the user that software installation is disabled, or your site is not in the whitelist—do not place it in the install code path.

Jetpack Processes - Archive of obsolete content
a mechanism to optionally disable this feature has been proposed in bug 614351.

Chapter 1: Introduction to Extensions - Archive of obsolete content
noscript enables and disables javascript execution on a site-by-site basis.

Chapter 4: Using XPCOM—Implementing advanced processes - Archive of obsolete content
enableprivilege is disabled in firefox 15 and will be removed in firefox 17.

Adding Events and Commands - Archive of obsolete content
maybe your extension needs to disable or enable a series of controls when the user logs in or out of a service, or when firefox detects it's online or offline.

Adding Toolbars and Toolbar Buttons - Archive of obsolete content
the disabled state for most buttons is handled with css.

Adding sidebars - Archive of obsolete content
there are ways to limit the size boundaries of your sidebar with css or even disable resizing altogether, but none of those are good practices.

Appendix C: Avoiding using eval in Add-ons - Archive of obsolete content
if you want to disable your overrides again, then use a flag indicating that, or similar.

Handling Preferences - Archive of obsolete content
locked preferences are disabled in the preferences window.

Creating reusable content with CSS and XBL - Archive of obsolete content
a[ document.getanonymouselementbyattribute(this, "anonid", "square") ]]></field> <field name="button"><![cdata[ document.getanonymouselementbyattribute(this, "anonid", "button") ]]></field> <method name="dodemo"> <body><![cdata[ this.square.style.backgroundcolor = "#cf4" this.square.style.marginleft = "20em" this.button.setattribute("disabled", "true") settimeout(this.cleardemo, 2000, this) ]]></body> </method> <method name="cleardemo"> <parameter name="me"/> <body><![cdata[ me.square.style.backgroundcolor = "transparent" me.square.style.marginleft = "0" me.button.removeattribute("disabled") ]]></body> </method> </implementation> <handlers> <hand...

CSS3 - Archive of obsolete content
new pseudo-classes: :target, :enabled and :disabled, :checked, :indeterminate, :root, :nth-child and :nth-last-child, :nth-of-type and :nth-last-of-type, :last-child, :first-of-type and :last-of-type, :only-child and :only-of-type,:empty, and :not.

DOMSubtreeModified - Archive of obsolete content
this event has been deprecated in favor of the mutation observer api this event can cause infinite loops if you decide to change the dom inside the event handler, hence it has been disabled in a number of browsers (see domattrmodified and domsubtreemodified events are no longer fired when style attribute is changed via cssom for example).

Bypassing Security Restrictions and Signing Code - Archive of obsolete content
the privilege manager has been deprecated in firefox 12 and disabled in firefox 17.

Building TransforMiiX standalone - Archive of obsolete content
it is recommended to add ac_add_options --disable-gtktest ac_add_options --without-jpeg ac_add_options --without-zlib ac_add_options --without-png ac_add_options --without-x to your .mozconfig, too, as it stops configure from testing unneeded libs.

Getting Started - Archive of obsolete content
this section defines the normal button in its basic state (there is no mouse over it, it's not disabled, and it's not selected).

Getting Started - Archive of obsolete content
this section defines the normal button in its basic state (there is no mouse over it, it's not disabled, and it's not selected).

Creating a Skin for Firefox/Getting Started - Archive of obsolete content
this section defines the normal button in its basic state (there is no mouse over it, it's not disabled, and it's not selected).

Dehydra Function Reference - Archive of obsolete content
optional: code is an integer parameter that allows warnings to be enabled(-wfoo) and disabled(-wno-) on the gcc commandline.

Editor Embedding Guide - Archive of obsolete content
verify if a command is enabled -- iscommandenabled: commandmanager->iscommanddisabled(acommand, retval) 4.

Disabling interruptible reflow - Archive of obsolete content
add the following variables to your environment to disable gecko interruptible reflow: gecko_reflow_interrupt_mode=counter gecko_reflow_interrupt_frequency=1000000 gecko_reflow_interrupt_checks_to_skip=1000000 now start firefox within this environment.

Layout FAQ - Archive of obsolete content
since the dragging action is involved, you might need to disable it.

Repackaging Firefox - Archive of obsolete content
when repacking firefox 2.0.0.3 or lower, be sure to download the latest version of the repackager, which has an additional checkbox in this section to disable the migration wizard at startup.