NSS 3.14.1 release notes
note that this code is used primarily for purposes of testing.
... note: the criteria for false start may change again in future nss releases.

NSS 3.14.2 release notes
note: the new assembly code requires gnu as version 2.19 or newer.
...note: please apply the patch in https://bugzilla.mozilla.org/show_bug.cgi?id=837799 if you build nss with the system sqlite library and your system sqlite library is older than 3.7.15.

NSS 3.24 release notes
note: this approach is only useful when the arena use is tightly bounded, for example, if it is only used in a single function.
...note that tls 1.3 support is experimental and not suitable for production use.

NSS 3.28.3 release notes
please note that nss 3.29 also contained the incorrect change.
...see also the separate release notes for nss 3.29.1 feedback bugs discovered should be reported by filing a bug report with bugzilla.mozilla.org (product nss).

NSS 3.28 release notes
note that there is a difference between tls 1.3 and key exporters in older versions of tls.
...note that this detection has a one-off performance cost, which can be avoided by using the ssl_namedgroupconfig function, to limit supported groups to those that nss provides.

nss tech note3
all about certificate extensions nss technical note: 3 09 may 2002 nelson b.
... sslserver: cert_sign; ssl_ca; sslca: cert_sign; ssl_ca; emailsigner: cert_sign; email_ca or ssl_ca emailrecipient: cert_sign; email_ca or ssl_ca objectsigner: cert_sign; object_signing_ca; usageanyca: cert_sign; object_signing_ca or email_ca or ssl_ca; statusresponder: cert_sign; object_signing_ca or email_ca or ssl_ca; note: when the required key usage is key_agreement or key_encipherment, the actual key usage required depends on the key's algorithm.

Notes on TLS - SSL 3.0 Intolerant Servers
post a note on your site instructing users of old versions of browsers like netscape 6.0/6.01/6.1 preview release 1 and mozilla 0.9.1 and earlier to turn off the tls option at: edit | preferences | privacy and security | ssl | enable tls.
...(note: you will be asked to provide your email address before you can file a bug at bugzilla.) original document information author : katsuhiko momoi last updated date: january 27th, 2003 copyright © 2001-2003 netscape.

XULRunner 1.9.1 Release Notes - Archive of obsolete content
current version the current version of xulrunner is 1.9.1.19, matching firefox 3.5.19 detailed release notes can be found here.

XULRunner 1.9.2 Release Notes - Archive of obsolete content
current version the current version of xulrunner 1.9.2 is 3.6.26, matching firefox 3.6.26 detailed release notes can be found here.

XULRunner 1.9 Release Notes - Archive of obsolete content
current version the current version of xulrunner is 1.9.0.17, matching firefox 3.0.17 detailed release notes can be found here.

XULRunner 2.0 Release Notes - Archive of obsolete content
current version the current version of xulrunner 2.0 is 2.0, matching firefox 4.0 detailed release notes can be found here.

4.3.1 Release Notes
note that some bugs may have been fixed since jss 4.3.1 was released.

NSS_3.11.10_release_notes.html
nss 3.11.10 release notes 2008-12-10 newsgroup: <ahref="news: mozilla.dev.tech.crypto"="" news.mozilla.org="">mozilla.dev.tech.crypto</ahref="news:> contents introduction distribution information bugs fixed documentation compatibility feedback introduction network security services (nss) 3.11.10 is a patch release for nss 3.11.

NSS_3.12.1_release_notes.html
nss 3.12.1 release notes 2008-09-05 newsgroup: mozilla.dev.tech.crypto contents introduction distribution information new in nss 3.12.1 bugs fixed documentation compatibility feedback introduction network security services (nss) 3.12.1 is a patch release for nss 3.12.

NSS_3.12.2_release_notes.html
nss 3.12.2 release notes 2008-10-20 newsgroup: mozilla.dev.tech.crypto contents introduction distribution information new in nss 3.12.2 bugs fixed documentation compatibility feedback introduction network security services (nss) 3.12.2 is a patch release for nss 3.12.

NSS 3.12.5 release_notes
nss 3.12.5 release notes 2009-12-02 newsgroup: mozilla.dev.tech.crypto introduction network security services (nss) 3.12.5 is a patch release for nss 3.12.

NSS 3.14 release notes
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.

NSS 3.15.1 release notes
note the following limitations.

NSS 3.19.1 release notes
note: nss 3.19.1 increases the minimum size of keys it is willing to use.

NSS 3.19.2 release notes
note: future versions of nss may increase the minimum keysizes required by the freebl module.

NSS 3.28.2 release notes
nss 3.28.2 source distributions are available on ftp.mozilla.org for secure https download: source tarballs: https://ftp.mozilla.org/pub/mozilla.org/security/nss/releases/nss_3_28_2_rtm/src/ incorrect version number note the version numbers embedded in the nss 3.28.2 are wrong (it reports itself as version 3.28.1).

NSS 3.29.1 release notes
note that nss 3.28.3 from the older nss 3.28.x branch has also been released with the identical fixes.

NSS 3.42 release notes
note: this was mistakenly not in release 3.42, and is instead in nss 3.42.1.

NSS 3.43 release notes
note that while the mechanism is present, post-handshake authentication is currently not tls 1.3 compliant due to bug 1532312 notable changes in nss 3.43 the following ca certificates were added: cn = emsign root ca - g1 sha-256 fingerprint: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367 cn = emsign ecc root ca - g3 sha-256 fingerprint: 86a...

NSS 3.44.1 release notes
new in nss 3.44.1 new functionality 1546229 - add ipsec ike support to softoken many new fips test cases (note: this has increased the source archive by approximately 50 megabytes for this release.) bugs fixed in nss 3.44.1 1554336 - optimize away unneeded loop in mpi.c 1515342 - more thorough input checking (cve-2019-11729) 1540541 - don't unnecessarily strip leading 0's from key material during pkcs11 import (cve-2019-11719) 1515236 - add a sslkeylogfile enable/disable flag a...

NSS 3.46 release notes
of particular note are significant improvements to aes-gcm performance on arm.

NSS 3.50 release notes
note that intel processors with sse4 but without avx are currently unable to use the improved chacha20/poly1305 due to a build issue; such platforms will fall-back to less optimized algorithms.

NSS 3.52 release notes
note: this change modifies the ck_gcm_params struct to include the ulivbits field which, prior to pkcs #11 v3.0, was ambiguously defined and not included in the nss definition.

nss tech note4
pulling certificate extension information out of ssl certificates nss technical note: 4 note: this document contains code snippets that focus on essential aspects of the task and often do not illustrate all the cleanup that needs to be done.

nss tech note6
nss .chk files for the fips 140 mode nss technical note: 6 in nss 3.8, we added checksum files required for the nss softoken to operate in fips 140 mode.

nss tech note7
rsa signing and encryption with nss nss technical note: 7 this technical note explains how to use nss to perform rsa signing and encryption.

nss tech note8
background information on libssl's cache functions and sids nss technical note: 8 27 february 2006 nelson b.

NSS Tech Notes
nss technical notes newsgroup: mozilla.dev.tech.crypto nss technical notes provide latest information about new nss features and supplementary documentation for advanced topics in programming with nss.

NSS_3.12.3_release_notes.html
nss 3.12.3 release notes 2009-04-01 newsgroup: mozilla.dev.tech.crypto contents introduction distribution information new in nss 3.12.3 bugs fixed documentation compatibility feedback introduction network security services (nss) 3.12.3 is a patch release for nss 3.12.

Index
(note that it's important to look at the number 11, as there are other pkcs standards with different numbers that define quite different topics.) a software or hardware module conforming to the pkcs#11 standard implements an interface of c calls, which allow querying the characteristics and offered services of the module.
... it's important to note that nss requires strict cleanup for all handles returned by nss.
...when creating the network socket for data exchange, note that you must use the operating system independent apis provided by nspr and nss.
...And 151 more matches

Editor Embedding Guide - Archive of obsolete content
nscomptr<nsieditingsession> editingsession; nsiwebbrowser->do_getinterface(getter_addrefs(editingsession)); if (editingsession) editingsession->makewindoweditable(domwindow, "html", pr_true); the valid editor types are: "text" (similar to notepad or a textarea; does not allow for html) "textmail" (similar to "text" but html can be inserted; intended for plaintext mail usage and handling of citations) "html" (this is the default type if no type is specified; it allows for all html tags to be inserted) "htmlmail" (this is much like "html" except there are a few editing rules/behaviors that differ such as splitting of mail quotes) ed...
... getcommandstate "state_all"(boolean), "state_begin"(boolean), "state_end"(boolean), "state_mixed"(boolean), "state_enabled" (boolean) docommand no parameters note this one is not visually notable in the general case.
... getcommandstate "state_all"(boolean), "state_begin"(boolean), "state_end"(boolean), "state_mixed"(boolean), "state_enabled" (boolean) docommand no parameters note this is logical style.
...And 53 more matches

ARIA Test Cases - Accessibility
jaws 9 & 10 with ie beta 2 nvda 0.6p2 with firefox 3 orca with firefox 3 window-eyes 7 with ie 8 beta 2 and firefox 3 voiceover (leopard) with safari 4.0.2 zoom (leopard) with safari 4.0.2, firefox 3.x and opera 9.x zoomtext 9.1 with firefox 3 and ie 8 beta 2 test case structure test cases are organized as follows: test case links test details expected at behavior markup notes results table at firefox ie opera safari jaws 9 - - - - jaws 10 - 1.
... reference to link example note regarding dojo/dijit test files the main purpose of dojo's dijit test files are for dojo developers to exercise and debug the code.
...still, dojo's widgets implement aria, and the noted test files could be used as an "aria test file".
...And 53 more matches

BluetoothCharacteristicProperties - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbluetoothcharacteristicproperties experimentalchrome full support 56notes full support 56notes notes chromeos and macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes edgeos and macos only.
...And 48 more matches

Example and tutorial: Simple synth keyboard - Web APIs
we will be programmatically constructing the keyboard, because doing so gives us the flexibility to configure each key as we determine the appropriate data for the corresponding note.
...for now, we will have two controls: one to set the master volume and another to select what periodic waveform to use when generating notes.
... wavepicker is the <select> element used to choose the waveform to use for the notes.
...And 37 more matches

BluetoothRemoteGATTDescriptor - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbluetoothremotegattdescriptor experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 35 more matches

Client-side storage - Learn web development
note: there are limits to the amount of data you can store using client-side storage apis (possibly both per individual api and cumulatively); the exact limit varies depending on the browser and possibly based on user settings.
... next, note how our html references a javascript file called index.js (see line 40).
... note: there is another, slightly more complex example to explore at using the web storage api.
...And 31 more matches

Index - Archive of obsolete content
2 .htaccess ( hypertext access ) 301 redirect, cache control, custom error pages, htaccess, permanent redirect, redirect file accessing : htaccess files can be opened using any text editor, like windows notepad, vin, sublime text editor or any other.
... 132 release notes add-on sdk no summary!
...every multiple item package must provide an install.rdf file (not old-style install.js!) and has the same requirements as an extension except as noted below.
...And 30 more matches

Parser API
note: this page describes spidermonkey-specific behavior and might be incomplete.
... note: expression closures are spidermonkey-specific.
... note: generators are spidermonkey-specific.
...And 23 more matches

JavaScript modules - JavaScript
to change preferences in firefox, visit about:config.opera android full support 45safari ios full support 10.3samsung internet android full support 8.0nodejs full support 13.2.0notes full support 13.2.0notes notes modules must either have a filename ending in .mjs, or the nearest parent package.json file must contain "type": "module".
... 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".
... full support 8.5.0notes disabled notes module filenames must end with .mjs, not .js.
...And 22 more matches

Advanced techniques: Creating and sequencing audio - Web APIs
note: you can find the source code on github as step-sequencer; see the step-sequencer running live also.
...when they are enabled the note will sound.
...ociated web audio api feature "sweep" oscillator, periodic wave oscillatornode, periodicwave "pulse" multiple oscillators oscillatornode "noise" random noise buffer, biquad filter audiobuffer, audiobuffersourcenode, biquadfilternode "dial up" loading a sound sample to play audiocontext.decodeaudiodata(), audiobuffersourcenode note: this instrument was not created to sound good, it was created to provide demonstration code and represents a very simplified version of such an instrument.
...And 19 more matches

Handling common accessibility problems - Learn web development
note: like many things in web development, accessibility isn't about 100% success or not; 100% accessibility is pretty much impossible to achieve for all content, especially as sites get more complex.
... note: accessibility is morally the right thing to do, and good for business (numbers of disabled users, users on mobile devices, etc.
... note that different browsers may have different keyboard control options available.
...And 18 more matches

nsINavBookmarksService
faces.nsinavbookmarksservice); method overview void addobserver(in nsinavbookmarkobserver observer, in boolean ownsweak); void beginupdatebatch(); obsolete since gecko 1.9 void changebookmarkuri(in long long aitemid, in nsiuri anewuri); long long createdynamiccontainer(in long long aparentfolder, in autf8string aname, in astring acontractid, in long aindex); note: renamed from createcontainer in gecko 1.9 obsolete since gecko 13.0 long long createfolder(in long long aparentfolder, in autf8string name, in long index); void endupdatebatch(); obsolete since gecko 1.9 void exportbookmarkshtml(in nsifile file); obsolete since gecko 1.9 nsiuri getbookmarkedurifor(in nsiuri auri); void getbookmarkfolderstarray(in nsiu...
...obsolete since gecko 1.9 void getbookmarkidsforuri(in nsiuri auri, [optional] out unsigned long count, [array, retval, size_is(count)] out long long bookmarks); note: renamed from getbookmarkfolders in gecko 1.9 void getbookmarkidsforuritarray(in nsiuri auri, in print64array aresult); native code only!
...note: renamed from bookmarksroot in gecko 1.9 placesroot long long the item id of the top-level folder that contains bookmarks, tags and all other places data.
...And 18 more matches

Bytecode Descriptions
note: this is used to implement ++ and --.
...note that obj is the top value, like jsop::in.
...(the spec refers to an "iterator object" with a next method, but notes that it "is never directly accessible" to scripts.
...And 17 more matches

OS.File for the main thread
note that this snippet is useful as a demonstration of complex asynchronous programming with os.file – in most cases, function os.file.writeatomic is a better choice.
... if (pos <= view.bytelength) { // note: should this be pos >= view.bytelength ?
...sk.spawn(function() { let view = new uint8array(data); let pos = 0; while (pos < view.bytelength) { pos += yield outfile.write(view.subarray(pos, chunksize)); } outfile.close(); }).then( null, function onfailure(reason) { outfile.close(); throw reason; } ); } example: save canvas to disk this exmaple uses image to load an image from a path (note: if your path is a file on disk you must use local file; this is accomplished with os.path.tofileuri, which accepts a string).
...And 16 more matches

WebAssembly - JavaScript
desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 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 8.0.0compileerrorchrome full support 57edge full support 16firefox full support 52...
...notes 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 sup...
...And 16 more matches

WebAssembly
desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 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 8.0.0compileerrorchrome full support 57edge full support 16firefox full support 52...
...notes 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 sup...
...And 16 more matches

CSS property compatibility table for form controls - Learn web development
property n t note css box model width yes yes height partial[1][2] yes webkit browsers (mostly on mac osx and ios) use the native look & feel for the search fields.
... font yes yes see the note about line-height letter-spacing yes yes text-align yes yes text-decoration partial partial see the note about opera text-indent partial[1] partial[1] ie9 supports this property only on <textarea>s, whereas opera only supports it on single line text fields.
... property n t note css box model width yes yes height partial[1] yes this property is not applied on webkit based browsers on mac osx or ios.
...And 15 more matches

Handling common JavaScript problems - Learn web development
note: buggy javascript code: the 10 most common mistakes javascript developers make has some nice discussions of these common mistakes and more.
... note: eslint takes a bit more setup and configuration than jshint, but it is more powerful too.
... note: similar tools are available in other browsers; the sources tab in chrome, debugger in safari (see safari web development tools), etc.
...And 15 more matches

Index - Web APIs
note that all these properties are read-only.
... 433 cssomstring api, cssom, reference cssomstring is used to denote string data in cssom specifications and can refer to either domstring or usvstring.
...note that the cache interface is exposed to windowed scopes as well as workers.
...And 15 more matches

Using XMLHttpRequest - Web APIs
note: starting with gecko 30.0 (firefox 30.0 / thunderbird 30.0 / seamonkey 2.27), synchronous requests on the main thread have been deprecated due to the negative effects to the user experience.
... note: the constructor function xmlhttprequest isn't limited to only xml documents.
... note: xmlhttprequest can now interpret html for you using the responsexml property.
...And 15 more matches

JXON - Archive of obsolete content
if you want a complete bidirectional jxon library (modelled on the json global object), skip to the dedicated paragraph (but please read the note about the const statement compatibility).
... note: if you are interested to address only some parts of an xml document (and are not starting in javascript/json for templating purposes), use xpath instead of converting the whole document into json.
... note: if you are using an instance of xmlhttprequest in order to retrieve your xml file, please use the yourrequest.responsexml property to get a parsed xml document.
...And 14 more matches

Audio for Web games - Game development
note: playing part of your file at zero volume could also work if the browser allows you to change volume (see below).
... also note that playing and immediately pausing your audio does not guarantee that a small piece of audio won't be played.
... note: adding a web app to your mobile's homescreen may change its capabilities.
...And 14 more matches

Drawing graphics - Learn web development
note: basic canvas functionality is supported well across browsers, with the exception of ie 8 and below for 2d canvas, and ie 11 and below for webgl.
... note: you should generally set the size of the image using html attributes or dom properties, as explained above.
... in this case we want a 2d canvas, so add the following javascript line below the others inside the <script> element: const ctx = canvas.getcontext('2d'); note: other context values you could choose include webgl for webgl, webgl2 for webgl 2, etc., but we won't need those in this article.
...And 14 more matches

EventTarget.addEventListener() - Web APIs
note: for event listeners attached to the event target, the event is in the target phase, rather than the capturing and bubbling phases.
... note: usecapture has not always been optional.
... return value undefined usage notes the event listener callback the event listener can be specified as either a callback function or an object that implements eventlistener, whose handleevent() method serves as the callback function.
...And 14 more matches

Understanding WebAssembly text format - WebAssembly
note: this is potentially overkill if you are a web developer who just wants to load a wasm module into a page and use it in your code (see using the webassembly javascript api), but it is more useful if for example, you want to write wasm modules to optimize the performance of your javascript library, or build your own webassembly compiler.
... (note that when this text gets converted to binary, though, the binary will contain only the integer.) stack machines before we can write a function body, we have to talk about one more thing: stack machines.
... next, we’ll load our binary into a typed array called addcode (as described in fetching webassembly bytecode), compile and instantiate it, and execute our add function in javascript (we can now find add() in the exports property of the instance): webassembly.instantiatestreaming(fetch('add.wasm')) .then(obj => { console.log(obj.instance.exports.add(1, 2)); // "3" }); note: you can find this example in github as add.html (see it live also).
...And 14 more matches

Introduction to automated testing - Learn web development
note: the above two categories are not mutually exclusive.
...note that node comes with node package manager (npm), which allows you to easily install packages, share your own packages with others, and run useful scripts on your projects.
...to update npm, use the following command in your terminal: npm install npm@latest -g note: if the above command fails with permissions errors, fixing npm permissions should sort you out.
...And 13 more matches

Observer Notifications
unless otherwise noted you register for the topics using the nsiobserverservice.
... [nsobserverservice.cpp] topic description xpcom-startup note: an extension can no longer be registered to receive this notification in firefox 4 and later.
... app-startup note: an extension can no longer be registered to receive this notification in firefox 4 and later.
...And 13 more matches

nsIURI
note: ipv6 addresses are not enclosed in square brackets.
...about:blank) note: characters are not escaped.
...about:blank) note: characters are not escaped.
...And 13 more matches

Signaling and video calling - Web APIs
note: if you try out the example on glitch, please note that any changes made to the code will immediately reset any connections.
... it's important to note that the server doesn't need to understand or interpret the signaling data content.
... note: the important thing to note is this: the only thing your code is responsible for during ice negotiation is accepting outgoing candidates from the ice layer and sending them across the signaling connection to the other peer when your onicecandidate handler is executed, and receiving ice candidate messages from the signaling server (when the "new-ice-candidate" message is received) and delivering ...
...And 13 more matches

Simple Storage - Archive of obsolete content
note that these examples create a mystorage variable to emphasize the fact that jetpack.storage.simple is just a normal javascript object.
...it's a simple note-taking jetpack.
... select some text on the page, right-click, and select note.
...And 12 more matches

Client-side form validation - Learn web development
note: there are several errors that will prevent the form from being submitted, including a badinput, patternmismatch, rangeoverflow or rangeunderflow, stepmismatch, toolong or tooshort, typemismatch, valuemissing, or a customerror.
...(required)</label> <input id="choose" name="i_like" required> <button>submit</button> </form> note the css that is included in the example file: input:invalid { border: 2px dashed red; } input:invalid:required { background-image: linear-gradient(to right, pink, lightgreen); } input:valid { border: 2px solid black; } this css causes the input to have a red dashed border when it is invalid and a more subtle solid black border when valid.
...try out the new behavior in the example below: note: you can find this example live on github as fruit-validation.html (see also the source code.) try submitting the form without a value.
...And 12 more matches

Setting up your own test automation environment - Learn web development
note: if you want to find out how to use webdriver with other server-side environments, also check out platforms supported by selenium for some useful links.
...to install selenium-webdriver, run the following command, making sure you are inside your project folder: npm install selenium-webdriver note: it is still a good idea to follow these steps even if you previously installed selenium-webdriver and downloaded the browser drivers.
... note: just to reiterate, the path you add to path needs to be the path to the directory containing the drivers, not the paths to the drivers themselves!
...And 12 more matches

Localization content best practices
note: if you're a localizer and you want to contribute to the localization of mozilla products, you might want to read our localization quick start guide for information on localizing mozilla code.
... note on localizers mozilla localizers are volunteers with very diverse technical skills: some of them rely exclusively on translation tools, others prefer to work directly with text editors and don't have problems working with vcs systems.
... add localization notes localizers usually work on the localizable files without the context of the source files including the localized strings; it is important to add comments to the localizable files themselves, too.
...And 12 more matches

Hacking Tips
note that some functions have been moved under an 'os' object, and help(os) will give brief help on just the members of that "namespace".
... getting the bytecode of a function (from js shell) the shell has a small function named dis to dump the bytecode of a function with its source notes.
... js> function f () { return 1; } js> dis(f); flags: loc op ----- -- main: 00000: one 00001: return 00002: stop source notes: ofs line pc delta desc args ---- ---- ----- ------ -------- ------ 0: 1 0 [ 0] newline 1: 2 0 [ 0] colspan 2 3: 2 2 [ 2] colspan 9 getting the bytecode of a function (from gdb) in jsopcode.cpp, a function named js::disassembleatpc can print the bytecode of a script.
...And 12 more matches

Index
unless otherwise noted you register for the topics using the nsiobserverservice.
... 91 working with multiple versions of interfaces add-ons, extensions, xpcom in this short note we illustrate how one can update an xpcom module in order for it to work in both firefox 2 and firefox 3, even if the interfaces have changed in the interim.
...note that even a read only text object can support the copy capability so this interface is not limited to editable objects.
...And 12 more matches

WebIDL bindings
notes: need to document the setup for indexed and named setters/creators/deleters.
... note that if you're adding new interfaces, then the test at dom/tests/mochitest/general/test_interfaces.html will most likely fail.
...note that you may not need to do this if your objects can only be created, never gotten from other objects.
...And 12 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 indicatin...
... 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 indicatin...
... 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 12 more matches

Using IndexedDB - Web APIs
(note that this will delete the information in the object store!
... note: as of firefox 40, indexeddb transactions have relaxed durability guarantees to increase performance (see bug 1112702.) previously in a readwrite transaction idbtransaction.oncomplete was fired only when all data was guaranteed to have been flushed to disk.
...here's what that looks like: var transaction = db.transaction(["customers"], "readwrite"); // note: older experimental implementations use the deprecated constant idbtransaction.read_write instead of "readwrite".
...And 12 more matches

background-size - CSS: Cascading Style Sheets
note: the behavior of <gradient>s changed in gecko 8.0 (firefox 8.0 / thunderbird 8.0 / seamonkey 2.5).
... note: in gecko, background images created using the element() function are currently treated as images with the dimensions of the element, or of the background positioning area if the element is svg, with the corresponding intrinsic proportion.
... note: svg images have a preserveaspectratio attribute that defaults to the equivalent of contain.
...And 12 more matches

package.json - Archive of obsolete content
note: jpm supports nodejs people fields.
... note: this is deprecated along with cfx; it's not available when using jpm.
... firefox: firefox desktop fennec: firefox for android thunderbird: thunderbird seamonkey: seamonkey any application uuid example: "engines": { "firefox": ">= 38.0a1", "fennec": ">= 38.0a1" } fullname note: this is deprecated along with cfx; it's not available when using jpm.
...And 11 more matches

Simple Storage - Archive of obsolete content
note: this page documents the jetpack prototype, which is no longer under active development.
...note that these examples create a mystorage variable to emphasize the fact that jetpack.storage.simple is just a normal javascript object.
...it's a simple note-taking jetpack.
...And 11 more matches

Choosing the right approach - Learn web development
droidfirefox for androidopera for androidsafari on iossamsung internetsettimeoutchrome full support 30edge full support 12firefox full support 1 full support 1 full support 52notes notes setinterval now defined on windoworworkerglobalscope mixin.ie full support 4opera full support 4safari full support 1webview android full support 4.4chrome android full support ...
... 30firefox android full support 4 full support 4 full support 52notes notes setinterval now defined on windoworworkerglobalscope mixin.opera android full support 10.1safari ios full support 1samsung internet android full support 3.0supports parameters for callbackchrome full support yesedge full support 12firefox full support yesie full support ...
... legend full support full support compatibility unknown compatibility unknownsee implementation notes.see implementation notes.
...And 11 more matches

Cooperative asynchronous JavaScript: Timeouts and intervals - Learn web development
(see the note below on why it runs "as soon as possible" and not "immediately".) more on why you might want to do this later.
... note: the specified amount of time (or the delay) is not the guaranteed time to execution, but rather the minimum time to execution.
...so to cancel our above timeout, you'd do this: cleartimeout(mygreeting); note: see greeter-app.html for a slightly more involved demo that allows you to set the name of the person to say hello to in a form, and cancel the greeting using a separate button (see the source code also).
...And 11 more matches

Introduction to events - Learn web development
note: event handlers are sometimes called event listeners — they are pretty much interchangeable for our purposes, although strictly speaking, they work together.
... note: web events are not part of the core javascript language — they are defined as part of the apis built into the browser.
...note: it doesn't work if you try to register this event handler on the button itself — we've had to register it on the window object, which represents the entire browser window.
...And 11 more matches

Component; nsIPrefBranch
note: this method does nothing if the prefbranch it is called on is a default branch.
... remarks note: prior to gecko 6.0, this method would throw an exception if there was no user value set for the specified preference.
... note: this method can be called on either a default or user branch but, in effect, always operates on both.
...And 11 more matches

:is() (:matches(), :any()) - CSS: Cascading Style Sheets
note: :matches() was renamed to :is() in csswg issue #3258.
... note that currently browsers support this functionality as :matches(), or through an older, prefixed pseudo-class — :any(), including older versions of chrome, firefox, and safari.
... 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).
...And 11 more matches

Cross-Origin Resource Sharing (CORS) - HTTP
apart from the headers automatically set by the user agent (for example, connection, user-agent, or the other headers defined in the fetch spec as a “forbidden header name”), the only headers which are allowed to be manually set are those which the fetch spec defines as a “cors-safelisted request-header”, which are: accept accept-language content-language content-type (but note the additional requirements below) dpr downlink save-data viewport-width width the only allowed values for the content-type header are: application/x-www-form-urlencoded multipart/form-data text/plain no event listeners are registered on any xmlhttprequestupload object used in the request; these are accessed using the xmlhttprequest.upload property.
... note: these are the same kinds of cross-site requests that web content can already issue, and no response data is released to the requester unless the server sends an appropriate header.
... note: webkit nightly and safari technology preview place additional restrictions on the values allowed in the accept, accept-language, and content-language headers.
...And 11 more matches

Install Manifests - Archive of obsolete content
note: the id property is optional in a webextension.
... note: extensions compatible with firefox 3.5 should specify a maxversion of 3.5.*, so that they are automatically compatible with security and stability updates.
... note: as of gecko 2.0, the dialog receives the addon object representing your add-on as a parameter.
...And 10 more matches

Chapter 3: Introduction to XUL—How to build a more intuitive UI - Archive of obsolete content
note: if you want to contribute to this document please follow the guidelines on the contribute page.
... note: although there is a specification document, its markup is based on implementations and markup as of 2001, and current xul differs from it in many aspects.
... note: with attributes like hidden, collapsed, and disabled, which take boolean values, setting disabled="false" in xul can have unintended consequences.
...And 10 more matches

Chapter 4: Using XPCOM—Implementing advanced processes - Archive of obsolete content
note: if you're developing components in c++ or other compiled languages, be sure to include binaries for every platform.
... note: interface definition language (idl) is a language for giving standard definitions of objects, methods, and so forth.
... note: to look at the firefox 3 source code, choose "firefox 3" in the starting points list.
...And 10 more matches

RDF in Mozilla FAQ - Archive of obsolete content
var ds = rdf.getdatasource("http://www.mozilla.org/some-rdf-file.rdf"); // note that ds will load asynchronously, so assertions will not // be immediately available alternatively, you can create one directly using the xpcom component manager, as the following code fragment illustrates: // create an rdf/xml datasource using the xpcom component manager var ds = components .classes["@mozilla.org/rdf/datasource;1?name=xml-datasource"] .createinstance(components.interfac...
...note that this will happen asynchronously.
...remote.refresh(false); // note that ds will load asynchronously, so assertions will not // be immediately available you may decide that you need to "manually" create an rdf/xml datasource if you want to force it to load synchronously.
...And 10 more matches

What is JavaScript? - Learn web development
px; display: inline-block; cursor: pointer; } and finally, we can add some javascript to implement dynamic behaviour: const para = document.queryselector('p'); para.addeventlistener('click', updatename); function updatename() { let name = prompt('enter a new name'); para.textcontent = 'player 1: ' + name; } try clicking on this last version of the text label to see what happens (note also that you can find this demo on github — see the source code, or run it live)!
... note: many of the above demos won't work in an older browser — when experimenting, it's a good idea to use a modern browser like firefox, chrome, edge or opera to run your code in.
... note: these apis are advanced, and we'll not be covering any of these in this module.
...And 10 more matches

Handling common HTML and CSS problems - Learn web development
note: one common problem with css and html arises when different css rules begin to conflict with one another.
...for example, see: sublimelinter for sublime text notepad++ linter vscode linters browser developer tools the developer tools built into most browsers also feature useful tools for hunting down errors, mainly for css.
... note: html errors don't tend to show up so easily in dev tools, as the browser will try to correct badly-formed markup automatically; the w3c validator is the best way to find html errors — see validation above.
...And 10 more matches

Mozilla’s UAAG evaluation report
checkpoint title status notes/plans 1.1 full keyboard access.
... checkpoint title status notes/plans checkpoint title status notes/plans 2.1 render content according to specification.
... checkpoint title status notes/plans 3.1 toggle background images.
...And 10 more matches

Chrome registration
note: with gecko 1.9.2 and older, mozilla reads chrome/*.manifest files from applications.
... note: scripts (including those found in xbl) loaded from skin packages will not execute.
... locale packagename localename path/to/files skin packagename skinname path/to/files note: the characters @ # ; : ?
...And 10 more matches

Command line options
in some cases, option arguments must be enclosed in quotation marks (this is noted in the option descriptions below).
...note profile_name and profile_dir are quoted together, and are separated by exactly 1 space (as with the previous syntax, profile_name must not contain spaces).
... firefox -createprofile "joeluser c:\internet\joelusers-moz-profile" note: profile_dir must not exist and you must not already have a profile called profile_name.
...And 10 more matches

sslfnc.html
note that at least one of the functions listed in ssl export policy functions must also be called during nss initialization.
... syntax #include "ssl.h" secstatus ssl_optionsetdefault(print32 option, prbool on); parameters this function has the following parameters: option one of the following values (except as noted, the factory setting is "off"): ssl_security enables use of security protocol.
... note that calling ssl_enable to set ssl_v2_compatible_hello to pr_false implicitly also sets the ssl_enable_ssl2 option to pr_false for that ssl socket.
...And 10 more matches

Introduction to the JavaScript shell
note: starting with spidermonkey 44 (firefox 44 / thunderbird 44 / seamonkey 2.41), the standard, web-compatible javascript version is used by default (and not js1.7+ anymore).
...from a bash console when using a pre-compiled binary, try <path to your firefox's run-mozilla.sh>/run-mozilla.sh ./js -- that worked for me] if you'd like to run the javascript code in the file foo.js, you can use this command: js foo.js to run foo.js then drop into the interactive shell, do this: js -f foo.js -i reference note: because the javascript shell is used as a test environment for the javascript engine, the available options and built-in functions can change over time.
... note: this list is incomplete and overlaps with shell global objects.
...And 10 more matches

Using Service Workers - Web APIs
note: as of firefox 44, when appcache is used to provide offline support for a page a warning message is now displayed in the console advising developers to use service workers instead (bug 1204581.) service workers should finally fix these issues.
... chrome canary: go to chrome://flags and turn on experimental-web-platform-features; restart browser (note that some features are now enabled by default in chrome.) opera: go to opera://flags and enable support for serviceworker; restart browser.
...(see our promises test example for the source code, or look at it running live.) note: a real service worker implementation would use caching and onfetch rather than the xmlhttprequest api.
...And 10 more matches

Proxy Auto-Configuration (PAC) file - HTTP
notes: the javascript function should always be saved to a file by itself but not be embedded in a html file or any other file.
...) convert_addr() myipaddress() dnsdomainlevels() url/hostname based conditions shexpmatch() time based conditions weekdayrange() daterange() timerange() logging utility alert() there was one associative array (object) already defined, because at the time javascript code was unable to define it by itself: proxyconfig.bindings note: pactester (part of the pacparser package) was used to test the following syntax examples.
... note that the patterns are shell glob expressions, not regular expressions.
...And 10 more matches

SVG 2 support in Mozilla - SVG: Scalable Vector Graphics
general change notes length attribute and indexed property for list interfaces implementation status unknown <script> element in content model of all elements implementation status unknown initialize(), appenditem(), replaceitem(), and insertitembefore() on list objects making a copy of any list item being inserted that is already in another list implementation status unknown crossorigin attribute for <image> and <script> elements not implemented yet...
... (at least for <image>; bug 1240357) rendering model change notes svg root and <foreignobject> not overflow:hidden in ua style sheet implementation status unknown allow overflow: auto; to clip and show scroll bars implementation status unknown allow overflow: scroll; to show scroll bars on <svg> elements implementation status unknown basic data types and interfaces change notes dommatrix or dommatrixreadonly instead of svgmatrix implementation status unknown domrect or domrectreadonly instead of svgrect implementation status unknown dompoint or dompointreadonly instead of svgpoint implementation status unknown members of svgstylable and svglangspace available in svge...
...t element implementation status unknown animval attribute alias of baseval implementation status unknown dataset attribute for svgelement implementation status unknown moved pathlength attribute and gettotallength() and getpointatlength() methods from svgpathelement to svggeometryelement implemented (bug 1239100) document structure change notes svgsvgelement.suspendredraw(), svgsvgelement.unsuspendredraw(), and svgsvgelement.unsuspendredrawall() deprecated turned into no-ops (bug 734079) externalresourcesrequired attribute removed implementation status unknown auto value for width and height in <image> implementation status unknown referencing entire document with <use> implementation...
...And 10 more matches

Chapter 6: Firefox extensions and XUL applications - Archive of obsolete content
fixme: figure 1: uncheck “exclude browser files.” set up quicknote for the purposes of this explanation, we’re going to use the file-storage mechanism in quicknote1 for our debugger.
... install quicknote from the following url and relaunch firefox.
... after relaunching firefox, activate quicknote.
...And 9 more matches

Reference - Archive of obsolete content
the "backwards compatibility" sections have been renamed to "behavior in older versions." however, i think this is only appropriate if we are going to document the evolution of everything, or at least note the most significant changes introduced in the various versions.
...maybe something like main article: javascript 1.2--sevenspade 15:16, 6 july 2006 (pdt) as a side note, the ability to to specify different versions has come up again - now between versions 1.6 and 1.7.
...--nickolay 00:58, 26 aug 2005 (pdt) (more coding style questions) --maian 04:06, 31 aug 2005 (pdt) i'd say, just make a note here about decisions you make.
...And 9 more matches

Positioning - Learn web development
note: you can see the example at this point live at 1_static-positioning.html (see source code).
...to try this out, add the following declarations to the .positioned rule in your css: top: 30px; left: 30px; note: the values of these properties can take any units you'd logically expect — pixels, mm, rems, %, etc.
... note: you can see the example at this point live at 2_relative-positioning.html (see source code).
...And 9 more matches

UI pseudo-classes - Learn web development
note: a number of the pseudo-classes discussed here are concerned with styling form controls based on their validation state (is their data valid, or not?) you'll learn much more about setting and controlling validation constraints in our next article — client-side form validation — but for now we'll keep things simple with regards to form validation, so it doesn't confuse things.
... note: you'll probably not find yourself using the :optional pseudo-class very often.
... note: if one radio button in a same-named group of radio buttons has the required attribute, all the radio buttons will be invalid until one is selected, but only the one with the attribute assigned will actually match :required.
...And 9 more matches

Graceful asynchronous programming with Promises - Learn web development
note: you can learn more about this somewhat advanced topic, if you're interested, in the article signaling and video calling.
... note: you can make further improvements with async/await syntax, which we'll dig into in the next article.
... note: the following example will not work if you just run it directly from the file (i.e.
...And 9 more matches

Inheritance in JavaScript - Learn web development
i\'m ' + this.name.first + '.'); }; note: in the source code, you'll also see bio() and farewell() methods defined.
... as a note, we could have simply done this: function teacher(first, last, age, gender, interests, subject) { this.name = { first, last }; this.age = age; this.gender = gender; this.interests = interests; this.subject = subject; } but this is just redefining the properties anew, not inheriting them from person(), so it defeats the point of what we are trying to do.
... inheriting from a constructor with no parameters note that if the constructor you are inheriting from doesn't take its property values from parameters, you don't need to specify them as additional arguments in call().
...And 9 more matches

TypeScript support in Svelte - Learn web development
note that our application is fully functional and porting it to typescript is completely optional.
... note: if you are curious about how typescript transpiles our code to javascript you can have a look at the typescript playground.
... note: remember that you can run npx degit opensas/mdn-svelte-tutorial/07-typescript-support svelte-todo-typescript to get the complete to-do list application in javascript before you start porting it to typescript.
...And 9 more matches

CustomizableUI.jsm
note that it is expressly not really aware about the specific ui used by users to make customizations.
...note that these are also abstract cross-window objects; customizableui will manage the actual dom manipulation involved with adding/moving/removing widgets in all windows for you.
...note that this is fired for each dom node.
...And 9 more matches

Web Video Text Tracks Format (WebVTT) - Web APIs
these should be on separate lines, starting with the string note.
... a comment consists of three parts: the string note.
... zero or more characters other than those noted above.
...And 9 more matches

Using Web Workers - Web APIs
note: see the web workers api landing page for reference documentation on workers and additional guides.
... note: notice that onmessage and postmessage() need to be hung off the worker object when used in the main script thread, but not when used in the worker.
... note: when a message is passed between the main thread and worker, it is copied or "transferred" (moved), not shared.
...And 9 more matches

clip-path - CSS: Cascading Style Sheets
note: a computed value other than none results in the creation of a new stacking context the same way that css opacity does for values other than 1.
...> = nonzero | evenodd<box> = border-box | padding-box | content-box examples comparison of html and svg <svg class="defs"> <defs> <clippath id="mypath" clippathunits="objectboundingbox"> <path d="m0.5,1 c0.5,1,0,0.7,0,0.3 a0.25,0.25,1,1,1,0.5,0.3 a0.25,0.25,1,1,1,1,0.3 c1,0.7,0.5,1,0.5,1 z" /> </clippath> </defs> </svg> <div class="grid"> <div class="col"> <div class="note">clip-path: none</div> <div class="row"> <div class="cell"> <span>html</span> <div class="container"> <p class="none"> i love<br><em>clipping</em> </p> </div> </div> <div class="cell"> <span>svg</span> <div class="container viewbox"> <svg viewbox="0 0 192 192"> <g class="none"> <rect ...
...x="24" y="24" width="144" height="144" /> <text x="96" y="91">i love</text> <text x="96" y="109" class="em">clipping</text> </g> </svg> </div> </div> </div> <div class="note">clip-path: url(#mypath)<br><br> assuming the following clippath definition: <pre> &lt;svg&gt; &lt;clippath id="mypath" clippathunits="objectboundingbox"&gt; &lt;path d="m0.5,1 c 0.5,1,0,0.7,0,0.3 a 0.25,0.25,1,1,1,0.5,0.3 a 0.25,0.25,1,1,1,1,0.3 c 1,0.7,0.5,1,0.5,1 z" /&gt; &lt;/clippath&gt; &lt;/svg&gt;</pre> </div> <div class="row"> <div class="cell"> <span>html</span> <div class="container"> <p class="svg"> i love<br><em>clipping</em> </p> </d...
...And 9 more matches

<input>: The Input (Form Input) element - HTML: Hypertext Markup Language
note: an element with the autofocus attribute may gain focus before the domcontentloaded event is fired.
...(only the htmlinputelement’s checked idl attribute is updated.) note: unlike other input controls, a checkboxes and radio buttons value are only included in the submitted data if they are currently checked.
... note: although not required by the specification, firefox will by default persist the dynamic disabled state of an <input> across page loads.
...And 9 more matches

Link types - HTML: Hypertext Markup Language
note: although recognized, the singular archive is incorrect and must be avoided.
... note: this may be a mailto: hyperlink, but this is not recommended on public pages as robot harvesters will quickly lead to a lot of spam sent to the address.
... note: other link types related to linking resources in the same sequence are last, prev, next.
...And 9 more matches

WebAssembly.Table - JavaScript
note: tables can currently only store function references, but this will likely be expanded in the future.
... webassembly.instantiatestreaming(fetch('table2.wasm'), importobject) .then(function(obj) { console.log(tbl.length); console.log(tbl.get(0)()); console.log(tbl.get(1)()); }); note how you've got to include a second function invocation operator at the end of the accessor to actually invoke the referenced function and log the value stored inside it (e.g.
... desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 ...
...And 9 more matches

fill - SVG: Scalable Vector Graphics
value <paint> default value black animatable yes note: as a presentation attribute fill can be used as a css property.
... value <paint> default value black animatable yes note: as a presentation attribute fill can be used as a css property.
... value <paint> default value black animatable yes note: as a presentation attribute fill can be used as a css property.
...And 9 more matches

File I/O - Archive of obsolete content
note: file objects are nsifile.
... createinstance(components.interfaces.nsilocalfile); file.initwithpath("/home"); note: the path should be in the "native" form (for example"c:\\windows").
... note: you can still get a file object even if the specified file does not exist, and no exception will be thrown.
...And 8 more matches

nsIContentPolicy - Archive of obsolete content
warning: do not block the caller in your implementations of shouldload() or shouldprocess() (for example, by launching a dialog to prompt the user for something).") note: in reality, much of this interface is defined in the nsicontentpolicybase interface, but for now is documented here until someone has time to split things up.
... note: gecko uses type_internal_frame and type_internal_iframe in order to discern the difference internally.
... note: this rejection only applies to the current request on this server, not to future requests of the same type.
...And 8 more matches

HTML: A good basis for accessibility - Learn web development
note: it is a good idea to have a screen reader set up on your local computer so that you can do some testing of the examples shown below.
... note: in addition to having good semantics and an attractive layout, your content should make logical sense in its source order — you can always place it where you want using css later on, but you should get the source order right to start with, so what screen reader users get read out to them will make sense.
... note: different browsers may have different keyboard control options available.
...And 8 more matches

HTML: A good basis for accessibility - Learn web development
note: it is a good idea to have a screen reader set up on your local computer so that you can do some testing of the examples shown below.
... note: in addition to having good semantics and an attractive layout, your content should make logical sense in its source order — you can always place it where you want using css later on, but you should get the source order right to start with, so what screen reader users get read out to them will make sense.
... note: different browsers may have different keyboard control options available.
...And 8 more matches

Legacy layout methods - Learn web development
note: you can see this example running at 0_two-column-layout.html (see also the source code).
... note: we've also given each column a light red color so you can see exactly how much space each one takes up.
... note: if you are having trouble getting the above example to work, try comparing it against our finished version on github (see it running live also).
...And 8 more matches

The HTML5 input types - Learn web development
note: most of the features discussed in this article have wide support across browsers.
... we'll note any exceptions.
...see the firefox for android keyboard screenshot below for an example: note: you can find examples of the basic text input types at basic input examples (see the source code also).
...And 8 more matches

How to build custom form controls - Learn web development
note: we'll focus on building the control, not on how to make the code generic and reusable; that would involve some non-trival javascript code and dom manipulation in an unknown context, and that is out of the scope of this article.
...if you want to learn more about this topic, you should check out the following helpful resources: uxmatters.com uxdesign.com the ux design section of smashingmagazine note: also, in most systems there is a way to open the <select> element with the keyboard to look at all the available choices (this is the same as clicking the <select> element with a mouse).
...--> <ul class="optlist"> <!-- each option only contains the value to be displayed, we'll see later how to handle the real value that will be sent with the form data --> <li class="option">cherry</li> <li class="option">lemon</li> <li class="option">banana</li> <li class="option">strawberry</li> <li class="option">apple</li> </ul> </div> note the use of class names; these identify each relevant part regardless of the actual underlying html elements used.
...And 8 more matches

Looping code - Learn web development
basic for loop example</title> <style> </style> </head> <body> <p></p> <script> const cats = ['bill', 'jeff', 'pete', 'biggles', 'jasmin']; let info = 'my cats are called '; const para = document.queryselector('p'); for (let i = 0; i < cats.length; i++) { info += cats[i] + ', '; } para.textcontent = info; </script> </body> </html> note: you can find this example code on github too (also see it running live).
... note: we have made the condition i < cats.length, not i <= cats.length, because computers count from 0, not 1 — we are starting i at 0, and going up to i = 4 (the index of the last array item).
... note: a common mistake with conditions is making them use "equal to" (===) rather than say "less than or equal to" (<=).
...And 8 more matches

Basic math in JavaScript — numbers and operators - Learn web development
note: actually, javascript has a second number type, bigint, used for very, very large integers.
... note: you'll sometimes see numbers involved in arithmetic referred to as operands.
... note: you may sometimes see exponents expressed using the older math.pow() method, which works in a very similar way.
...And 8 more matches

Introduction to the server side - Learn web development
note: client-side frameworks are often used to help speed up development of client-side code, but you can also choose to write all the code by hand; in fact, writing your code by hand can be quicker and more efficient if you only need a small, simple web site ui.
...you'll note that there is some overlap!
... note: your imagination doesn't have to work hard to see the benefit of server-side code for efficient storage and delivery of information: go to amazon or some other e-commerce site.
...And 8 more matches

Strategies for carrying out testing - Learn web development
note: yahoo first made this approach popular, with their graded browser support approach.
... note: you can only have one version of ie or edge installed on a machine at once, so you will probably have to use virtual machine, or other strategy to do the testing you need.
... note: "the ceo of my company uses a blackberry, so we'd better make sure it looks good on that" can also be a persuasive argument.
...And 8 more matches

Command line crash course - Learn web development
side note: what's the difference between a command line and a terminal?
...ify their metadata): touch copy files: cp move files: mv delete files or directories: rm download files found at specific urls: curl search for fragments of text inside larger bodies of text: grep view a file's contents page by page: less, cat manipulate and transform streams of text (for example changing all the instances of <div>s in an html file to <article>): awk, tr, sed note: there are a number of good tutorials on the web that go much deeper into the command line on the web — this is only a brief introduction!
... note: a very useful terminal shortcut is using the tab key to autocomplete names that you know are present, rather than having to type out the whole thing.
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Midas
notes since an entire document becomes editable, authors often load the editable document into an iframe and do the bulk of the scripting in the parent document.
... examples this example shows the basic structure described in the notes section : <html> <head> <title>simple edit box</title> </head> <body> <iframe id="midasform" src="about:blank" onload="this.contentdocument.designmode='on';" ></iframe> </body> </html> methods document.execcommand executes the given command.
... note: this command won't work without setting a pref or using signed js.
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Using XPCOM Utilities to Make Things Easier
note that all of the macros described in this section are similar but are used in slightly different situations.
...}; the important thing to note in the fictitious listing above is that it can support multiple components in a module.
...note that it uses the actual name of the interface and not an iid.
...And 8 more matches

mozIStorageConnection
note: this is not reliable if you are using asynchronous statements or if you are using the connection on multiple threads.
... note: this is not reliable if you are using asynchronous statements or if you are using the connection on multiple threads.
... note: this is not reliable if you are using asynchronous statements or if you are using the connection on multiple threads.
...And 8 more matches

nsINavHistoryQueryOptions
note: currently, only bookmark folder containers support being opened asynchronously.
... note that this has no effect on folder links, which are place: uris returned by nsinavbookmarkservice's getfolderuri method.
... note: this option is only used on query_type_history.
...And 8 more matches

Fullscreen API - Web APIs
note: support for this api varies somewhat across browsers, with many requiring vendor prefixes and/or not implementing the latest specification.
... note: these event handler properties are not available as html content attributes.
... note: use the fullscreenelement property on the document or shadowroot instead; if it's not null, then it's an element currently being displayed in full-screen mode.
...And 8 more matches

NavigationPreloadManager - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnavigationpreloadmanager experimentalchrome full support 62edge full support 18firefox no support nonotes no support nonotes notes implementation tracked in bug 1290958ie ?
... webview android full support 62chrome android full support 62firefox android no support nonotes no support nonotes notes implementation tracked in bug 1290958opera android full support 46safari ios ?
... 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 ?
...And 8 more matches

Web Accessibility: Understanding Colors and Luminance - Accessibility
the srgb color space the mdn document, <color> notes "the css data type represents a color in the srgb color space." color has many ways of being defined, including rgb, rgb decimal, rgb percent, hsl, cmyk among others.
... note that in that same section of the css color module 3, there are algorigthms available to translate the hsl to rgb.
... in speaking specifically to relative luminance, wcag's definition of relative luminance notes: "note 2: almost all systems used today to view web content assume srgb encoding.
...And 8 more matches

Variable fonts guide - CSS: Cascading Style Sheets
a note about font families, weights, and variants you might notice that we have been talking about having a specific font file for every weight and style (i.e.
...note that an axis can be a range or a binary choice.
... notes when using font-variation-settings it is important to note that axis names are case-sensitive.
...And 8 more matches

<input type="email"> - HTML: Hypertext Markup Language
the :valid and :invalid css pseudo-classes are automatically applied as appropriate to visually denote whether the current value of the field is a valid e-mail address or not.
... note: normally, if you specify the required attribute, the user must enter a valid e-mail address for the field to be considered valid.
... note: avoid using the placeholder attribute if you can.
...And 8 more matches

<textarea> - HTML: Hypertext Markup Language
note: placeholders should only be used to show an example of the type of data that should be entered into a form; they are not a substitute for a proper <label> element tied to the input.
... <textarea name="textarea" rows="5" cols="30" minlength="10" maxlength="20">write something here</textarea> note that minlength doesn't stop the user from removing characters so that the number entered goes past the minimum, but it does make the value entered into the <textarea> invalid.
... also note that even if you have a minlength value set (3, for example), an empty <textarea> is still considered valid unless you also have the required attribute set.
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Using the WebAssembly JavaScript API - WebAssembly
note: if you are unfamiliar with the basic concepts mentioned in this article and need more explanation, read webassembly concepts first, then come back.
... note: you can find the sample code in our webassembly-examples github repo.
... note: this is a convoluted, longwinded example that achieves very little, but it does serve to illustrate what is possible — using webassembly code alongside javascript in your web applications.
...And 8 more matches

Extension Versioning, Update and Compatibility - Archive of obsolete content
as a rough overview this is a version string split by periods, some examples: 2.0 1.0b1 3.0pre1 5.0.1.2 note: before firefox 1.5 the more basic firefox version format was used: major.minor.release.build[+] where only digits were allowed.
... firefox 3 note in applications based on gecko 1.9 you can also use a targetapplication entry with an id toolkit@mozilla.org and minversion and maxversion that match the toolkit version of the running application.
... note: before firefox 1.5 the preference app.extensions.version could be used to override the version that the application believed itself to be to allow normally incompatible extensions to install.
...And 7 more matches

Mozilla Crypto FAQ - Archive of obsolete content
note that this document is for your information only and is not intended as legal advice.
... note that due to various implementation issues, psm support for mozilla on the macintosh is lagging somewhat behind psm support on windows, linux, and other platforms.
... also note that the nss developers are creating code for support of s/mime secure messages; however full s/mime support within mozilla will require further development, and may not be available until after the mozilla 1.0 release.
...And 7 more matches

Tamarin build documentation - Archive of obsolete content
note that additional command-line arguments are only available in the debug configuration.
...its options are '104u', '105' or '106' (note: no '.') if you don't pass the --mac-sdk switch you will get no sdk in your build.
... setup the shell environment with the following environment variables: # note: the include, lib and libpath must contain windows path information and separator and not cygwin paths.
...And 7 more matches

Textbox (XPFE autocomplete) - Archive of obsolete content
alwaysopenpopup obsolete since gecko 1.9.1 type: boolean note: applies to: thunderbird and seamonkeyif true, the autocomplete popup will be displayed even when there are no matches.
... autofill obsolete since gecko 1.9.1 type: boolean note: applies to: thunderbird and seamonkeyif set to true, the best match will be filled into the textbox as the user types.
... 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.
...And 7 more matches

Browser Detection and Cross Browser Support - Archive of obsolete content
note that some other browsers such as safari are reporting (like gecko) in their user agent strings and can confuse simple tests.
... a final note on vendor/version strategies.
...if (document.all) { // internet explorer 4+ document.write('<link rel="stylesheet" type="text/css" src="style-ie.css">'); } else if (document.layers) { // navigator 4 document.write('<link rel="stylesheet" type="text/css" src="style-nn.css">'); } note how the above example only provided stylesheets for internet explorer and navigator 4 and even then only if the visitor has javascript support turned on in their browser.
...And 7 more matches

Implementation Status - Archive of obsolete content
document structure section title status notes bugs 3.1 namespaces supported 3.2.1 common attributes supported 3.2.2 linking attributes supported 3.2.3 single-node binding attributes supported 3.2.4 node-set binding attributes supporte...
...processing model (events) section title status notes bugs 4 processing model (events) partial the xforms-recalculate, xforms-revalidate, and xforms-refresh events are not as separated as they should be.
...datatypes section title status notes bugs 5.1 xml schema built-in datatypes partial whitespace facet not supported.
...And 7 more matches

WAI-ARIA basics - Learn web development
note: you can find a useful list of all the aria roles and their uses, with links to futher information, in the wai-aria spec — see definition of roles.
... note: some javascript libraries support wai-aria, meaning that when they generate ui features like complex form controls, they add aria attributes to improve the accessibility of those features.
... 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.
...And 7 more matches

JavaScript basics - Learn web development
you should see something like this: note: the reason the instructions (above) place the <script> element near the bottom of the html file is that the browser reads code in the order it appears in the file.
... note: both of the features you used in this exercise are parts of the document object model (dom) api, which has the capability to manipulate documents.
...you start by declaring a variable with the var (less recommended, dive deeper for the explanation) or the let keyword, followed by the name you give to the variable: let myvariable; note: a semicolon at the end of a line indicates where a statement ends.
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Mozilla internal string guide
note that you must null-terminate buffers used by to nsdependentstring.
...la strings are always a single buffer, iteration over the characters in the string is done using raw pointers: /** * find whether there is a tab character in `data` */ bool hastab(const nsastring& data) { const char16_t* cur = data.beginreading(); const char16_t* end = data.endreading(); for (; cur < end; ++cur) { if (char16_t('\t') == *cur) return true; } return false; } note that `end` points to the character after the end of the string buffer.
... note that iterators become invalid after changing the length of a string: /** * replace every tab character in `data` with four spaces.
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nsIAccessibleHyperLink
inherits from: nsisupports last changed in gecko 1.9 (firefox 3) method overview nsiaccessible getanchor(in long index); note: renamed from getobject in gecko 1.9 nsiuri geturi(in long index); boolean isselected(); obsolete since gecko 1.9 boolean isvalid(); obsolete since gecko 1.9 attributes attribute type description anchorcount long the number of anchors within this hyperlink.
...note: renamed from anchors in gecko 1.9 exceptions thrown ns_error_failure indicates that the accessible is unattached from the accessible tree.
... note: the link itself is represented by one embedded character within the parent text, so the endindex should be startindex + 1.
...And 7 more matches

nsIBrowserHistory
is, in unsigned long alength, in boolean adobatchnotify); void removepagesbytimeframe(in long long abegintime, in long long aendtime); void removepagesfromhost(in autf8string ahost, in boolean aentiredomain); void removevisitsbytimeframe(in long long abegintime, in long long aendtime); void unregisteropenpage(in nsiuri auri); obsolete since gecko 9.0 note: the markpageasfollowedlink and markpageastyped methods were moved to nsinavhistoryservice in gecko 22.0 so that all markpageas* methods can be found in one interface.
... note: the count attribute was removed in gecko 15.0 because it was only used to determine if there were any entries at all anyway, so the nsinavhistoryservice.hashistoryentries attribute is better for this.
... methods addpagewithdetails() obsolete since gecko 15.0 (firefox 15.0 / thunderbird 15.0 / seamonkey 2.12) note: this method was removed in gecko 15.0.
...And 7 more matches

nsIDocShell
note that out-of-process browsers do not have an nsidocshell; instead you can access the nsidocshell object from a frame script.
... note: prior to gecko 12.0, this attribute was part of a separate nsidoccharset interface.
...obsolete since gecko 12.0 note: the properties of the old nsidocumentcharsetinfo interface were merged into nsidocshell in gecko 12.0.
...And 7 more matches

Address Book examples
note: thunderbird and seamonkey user interfaces now reference 'contacts' not 'cards' however, as the backend still uses the 'cards' terminology, that is what is used here this article provides examples on accessing and manipulating thunderbird address books.
... let card = collection.cardforemailaddress("foo@bar.invalid.com"); note: both of these functions may raise an ns_error_not_implemented exception if the collection has not implemented that function.
... formulate a boolean search string (see nsiabcard for built-in property names): var searchquery = "(or(primaryemail,bw,@v)(nickname,bw,@v)(and(ismaillist,=,true)(notes,bw,@v)))"; searchquery = searchquery.replace(/@v/g, encodeuricomponent("mystr") the search queries use lisp syntax with operators enumerated in nsabquerystringtoexpression.cpp.
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Browser storage limits and eviction criteria - Web APIs
note: the information below should be fairly accurate for most modern browsers, but browser specifics are called out where known.
...we term them "quota clients" in this context: indexeddb asm.js caching cache api cookies note: in firefox, web storage will soon start to use the same storage management tools too, as described in this document.
... note: in private browsing mode, most data storage is not supported.
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Migrating from webkitAudioContext - Web APIs
note: there is a library called webkitaudiocontext monkeypatch, which automatically fixes some of these changes to make most code targetting webkitaudiocontext to work on the standards based audiocontext out of the box, but it currently doesn't handle all of the cases below.
... changes to starting and stopping nodes in webkitaudiocontext, there are two ways to start and stop audiobuffersourcenode and oscillatornode: the noteon() and noteoff() methods, and the start() and stop() methods.
... (audiobuffersourcenode has yet another way of starting output: the notegrainon() method.) the noteon()/notegrainon()/noteoff() methods were the original way to start/stop output in these nodes, and in the newer versions of the specification, the noteon() and notegrainon() methods were consolidated into a single start() method, and the noteoff() method was renamed to the stop() method.
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Operable - Accessibility
note: to read the w3c definitions for operable and its guidelines and success criteria, see principle 2: operable — user interface components and navigation must be operable.
... understanding character key shortcuts note: also see the wcag description for guideline 2.1 keyboard accessible: make all functionality available from a keyboard.
... understanding timeouts note: also see the wcag description for guideline 2.2 enough time: provide users enough time to read and use content.
...And 7 more matches

min-width - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetmin-widthchrome full support 1edge full support 12firefox full support 1notes full support 1notes notes css 2.1 leaves the behavior of min-width with table undefined.
... firefox supports applying min-width to table elements.ie full support 7opera full support 4notes full support 4notes notes css 2.1 leaves the behavior of min-width with table undefined.
... opera supports applying min-width to table elements.safari full support 1webview android full support 4.4chrome android full support 18firefox android full support 4notes full support 4notes notes css 2.1 leaves the behavior of min-width with table undefined.
...And 7 more matches

<input type="file"> - HTML: Hypertext Markup Language
note: if multiple files are selected, the string represents the first selected file.
... note: capture was previously a boolean attribute which, if present, requested that the device's media capture device(s) such as camera or microphone be used instead of requesting a file input.
... note: though originally implemented only for webkit-based browsers, webkitdirectory is also usable in microsoft edge as well as firefox 50 and later.
...And 7 more matches

<input type="url"> - HTML: Hypertext Markup Language
the :valid and :invalid css pseudo-classes are automatically applied as appropriate to visually denote whether the current value of the field is a valid url or not.
... note: avoid using the placeholder attribute if you can.
... note: because a read-only field cannot have a value, required does not have any effect on inputs with the readonly attribute also specified.
...And 7 more matches

Introduction to using XPath in JavaScript - XPath
note that, if the xpathexpression contains a namespace prefix, this will result in a domexception being thrown with the code namespace_err.
... note: xpath defines qnames without a prefix to match only elements in the null namespace.
... notes adapts any dom node to resolve namespaces so that an xpath expression can be easily evaluated relative to the context of the node where it appeared within the document.
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Inner-browsing extending the browser navigation paradigm - Archive of obsolete content
note this article is the version from 2003 with slight modifications (no images and no links to samples).
...the following picture shows the model that is the essence of this technote.
...note that the ticker is a completely separated component.
...And 6 more matches

Elements - Archive of obsolete content
notes in the current stable releases of mozilla products (e.g.
... note: the normal same-origin policy is used for web sites; they can only link to xbl files on the same domain, or within the chrome.
...note that content cannot be inherited, only behavior.
...And 6 more matches

Examples - Archive of obsolete content
if you wish to test these examples by yourself, please read the important notes.
... important notes if you plan to test these examples by yourself, you must use the right filename extension (it is written at the beginning of the code).
... please note that the examples 4, 5 and 6 require a file named style.css to exist in the same directory as the example.
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Fundamental text and font styling - Learn web development
note: if the above paragraph leaves you feeling confused, then no matter — go back and review our box model article, to brush up on the box model theory, before carrying on.
... note: bear in mind that the text inside an element is all affected as one single entity.
... the list of actual web safe fonts will change as operating systems evolve, but it's reasonable to consider the following fonts web safe, at least for now (many of them have been popularized thanks to the microsoft core fonts for the web initiative in the late 90s and early 2000s): name generic type notes arial sans-serif it's often considered best practice to also add helvetica as a preferred alternative to arial as, although their font faces are almost identical, helvetica is considered to have a nicer shape, even if arial is more broadly available.
...And 6 more matches

Basic native form controls - Learn web development
note: the features discussed in this article are supported in all browsers, which is not the case for all form controls.
... note: html form text fields are simple plain text input controls.
... note: the <input> element is unique amongst html elements because it can take many different forms depending on its type attribute value.
...And 6 more matches

Sending form data - Learn web development
note: to get a better idea of how client-server architectures work, read our server-side website programming first steps module.
... in this example, the data is sent to an absolute url — https://example.com: <form action="https://example.com"> here, we use a relative url — the data is sent to a different url on the same origin: <form action="/somewhere_else"> when specified with no attributes, as below, the <form> data is sent to the same page that the form is present on: <form> note: it's possible to specify a url that uses the https (secure http) protocol.
...in this case we are passing two pieces of data to the server: say, which has a value of hi to, which has a value of mom the http request looks like this: get /?say=hi&to=mom http/2.0 host: foo.com note: you can find this example on github — see get-method.html (see it live also).
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Document and website structure - Learn web development
note: colorblind people represent around 4% of the world population or, to put it another way, approximately 1 in every 12 men and 1 in every 200 women are colorblind.
...it's considered best practice to begin each section with a heading; also note that you can break <article>s up into different <section>s, or <section>s up into different <article>s, depending on the context.
...for example: <p>the king walked drunkenly back to his room at 01:00, the beer doing nothing to aid him as he staggered through the door <span class="editor-note">[editor's note: at this point in the play, the lights should be down low]</span>.</p> in this case, the editor's note is supposed to merely provide extra direction for the director of the play; it is not supposed to have extra semantic meaning.
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Getting started with HTML - Learn web development
for example, consider the following line of text: my cat is very grumpy if we wanted the text to stand by itself, we could specify that it is a paragraph by enclosing it in a paragraph (<p>) element: <p>my cat is very grumpy</p> note: tags in html are case-insensitive.
...(the spacing is due to default css styling that the browser applies to paragraphs.) note: html5 redefined the element categories: see element content categories.
... note: the terms block and inline, as used in this article, should not be confused with the types of css boxes that have the same names.
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What went wrong? Troubleshooting JavaScript - Learn web development
note: you might well have your own version of the game example that doesn't work, which you might want to fix!
... note: see our typeerror: "x" is not a function reference page for more details about this error.
... note: null is a special value that means "nothing", or "no value".
...And 6 more matches

Object prototypes - Learn web development
note: this article covers traditional javascript constructors and classes.
... note: it's important to understand that there is a distinction between an object's prototype (available via object.getprototypeof(obj), or via the deprecated __proto__ property) and the prototype property on constructor functions.
... note: we want to reiterate that the methods and properties are not copied from one object to another in the prototype chain.
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Getting started with Svelte - Learn web development
note: recently svelte has added official typescript support, one of its most requested features.
...note that you can also use the yarn package manager in place of npm, but we'll assume you are using npm in this set of tutorials.
... to create your starter app template, run the following terminal commands: npx degit sveltejs/template moz-todo-svelte cd moz-todo-svelte npm install npm run dev note: degit doesn't do any kind of magic — it just lets you download and unzip the latest version of a git repo's contents.
...And 6 more matches

Advanced Svelte: Reactivity, lifecycle, accessibility - Learn web development
note: if foo is a top level variable, you can easily tell svelte to update obj whenever foo is changed with the following reactive statement: $: foo, obj = obj.
... note: svelte allows us to specify different options that affect how the compiler works.
... note: the { name } syntax is just a shorthand for { name: name }.
...And 6 more matches

Introducing a complete toolchain - Learn web development
note: it's also worth repeating that not all of these tools need to be run on the command line.
... note: though it's not clear from the install process, installing npm also installs a complimentary tool called npx.
...note that, although we're using github in this chapter, there are several alternatives including gitlab and bitbucket, and you could even host your own git repositories.
...And 6 more matches

Performance best practices for Firefox front-end engineers
it's also important to note that most of our javascript runs on the main thread, so it's easy for script to cause delays in event processing or painting.
... note that requestanimationframe() lets you queue up javascript to run right before the style flush occurs.
... note that your test and function must be called synchronously in order for this test to be accurate.
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Dict.jsm
avascript scope: components.utils.import("resource://gre/modules/dict.jsm"); creating a dictionary you can create a new, empty dictionary by simply calling the dict() constructor: var newdict = new dict(); if you wish, you may also pass in an object literal of key/value pairs with which to initialize the dictionary: var someobj = {}; var newdict = new dict({key1: "foo", key2: someobj}); note that values may be any javascript object type.
... note: you can actually specify non-strings as keys; these are converted to strings before being used, so they're documented here as if they were a string parameter.
... in firefox 19 and above, you may also pass a json string to initialize the dictionary: var somejson = '{key1: "foo", key2: {}}'; var newdict = new dict(somejson); note: any string you pass will be assumed to be json.
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Application Translation with Mercurial
gaia-* denotes branches of firefox os, the operating system for mobile devices.
... firefox and fx-* denote branches of firefox for desktop, the browser for desktops and notebooks running, windows, mac os or linux.
... fennec and fennec-* denote branches of firefox for mobile, the firefox browser for the android operating system.
...And 6 more matches

Profiling with the Firefox Profiler
note that high priority events such as vsync are not included here.
... also note that this indicates what would have happened had there been an event waiting and not necessarily that there was an event pending for that long.
...as you zoom in on ranges, breadcrumbs are created allowing you to easily navigate back to previously-selected ranges or the entire profile (denoted as "full range").
...And 6 more matches

nsIFaviconService
note: this is an asynchronous operation; when it completes, a "places-favicons-expired" notification is dispatched through the observer's service.
... getfavicondata() obsolete since gecko 22.0 (firefox 22.0 / thunderbird 22.0 / seamonkey 2.19) note: this method was removed in gecko 22.0.
... getfavicondataasdataurl() obsolete since gecko 22.0 (firefox 22.0 / thunderbird 22.0 / seamonkey 2.19) note: this method was removed in gecko 22.0.
...And 6 more matches

nsINavHistoryObserver
methods onbeforedeleteuri() obsolete since gecko 21.0 (firefox 21.0 / thunderbird 21.0 / seamonkey 2.18) note: this method was removed in gecko 21.0 as part of bug 826409.
... note: the page does not necessarily have to have ever existed for this function to be called.
... note: see using onbeforedeleteuri() in gecko 1.9.1 for how to implement this in gecko 1.9.1 void onbeforedeleteuri( in nsiuri auri, in acstring aguid ); parameters auri the uri of the page about to be deleted.
...And 6 more matches

nsIPropertyBag2
note: accessing a property of a different type may attempt conversion to this type.
...note: accessing a property of a different type may attempt conversion to this type.
...note: accessing a property of a different type may attempt conversion to this type.
...And 6 more matches

nsISessionStore
the api operates on top-level browser.xul and navigator.xul windows; see note on windows for details.
... note: the returned string does not include cookies.
...see #note on windows.
...And 6 more matches

nsIWindowWatcher
inherits from: nsisupports last changed in gecko 0.9.6 usage notes: this component has an activewindow property.
...note that there is no interface for such notifications (not a public one, anyway).
... note: this method will search all open windows for any window or frame with the given window name.
...And 6 more matches

Plug-in Basics - Plugins
note: np_initialize and np_shutdown are not technically a part of the function table that the plug-in hands to the browser.
... note: plug-in api calls and callbacks use the main navigator thread.
... %appdata%\mozilla\plugins, where %appdata% denotes per-user application data directory.
...And 6 more matches

Debugger - Firefox Developer Tools
however, note that a { return:value } resumption value is treated like undefined (“continue normally”);value is ignored.
...however, note that a { return:value } resumption value is treated like undefined (“continue normally”);value is ignored.
...however, note that a { return:value } resumption value is treated like undefined (“continue normally”);value is ignored.
...And 6 more matches

WindowOrWorkerGlobalScope.setTimeout() - Web APIs
note that in either case, the actual delay may be longer than intended; see reasons for delays longer than specified below.
... note: passing additional parameters to the function in the first syntax does not work in internet explorer 9 and below.
...function () { vcallback.apply(othis, aargs); } : vcallback, ndelay); }; note: these two replacements will also enable the html5 standard passage of arbitrary arguments to the callback functions of timers in ie.
...And 6 more matches

Using CSS animations - CSS: Cascading Style Sheets
examples note: some older browsers (pre-2017) may need prefixes; the live examples you can click to see in your browser include the -webkit prefixed syntax.
... note that animations like this can cause the page to become wider than the browser window.
... <p>the caterpillar and alice looked at each other for some time in silence: at last the caterpillar took the hookah out of its mouth, and addressed her in a languid, sleepy voice.</p> note: reload page to see the animation, or click the codepen button to see the animation in the codepen environment.
...And 6 more matches

<color> - CSS: Cascading Style Sheets
a <color> can be defined in any of the following ways: using a keyword (such as blue or transparent) using the rgb cubic-coordinate system (via the #-hexadecimal or the rgb() and rgba() functional notations) using the hsl cylindrical-coordinate system (via the hsl() and hsla() functional notations) note: this article describes the <color> data type in detail.
... note: although <color> values are precisely defined, their actual appearance may vary (sometimes significantly) from device to device.
... note: the list of accepted keywords has undergone many changes during the evolution of css: css level 1 only included 16 basic colors, called the vga colors as they were taken from the set of displayable colors on vga graphics cards.
...And 6 more matches

Cross-browser audio basics - Developer guides
sic audio example the code below is an example of a basic audio implementation using html5: <audio controls> <source src="audiofile.mp3" type="audio/mpeg"> <source src="audiofile.ogg" type="audio/ogg"> <!-- fallback for non supporting browsers goes here --> <p>your browser does not support html5 audio, but you can still <a href="audiofile.mp3">download the music</a>.</p> </audio> note: you can also use an mp4 file instead of mp3.
...</audio> note: this value is often ignored on mobile platforms, and its use is not recommended unless really necessary.
...</audio> note: this value is often ignored on mobile platforms.
...And 6 more matches

WebAssembly.Module - JavaScript
desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 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 8.0.0module() 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 ...
...And 6 more matches

d - SVG: Scalable Vector Graphics
value <string> default value none animatable yes note: the point of origin (the coordinate 0,0) is usually the upper left corner of the context.
... svg defines 6 types of path commands, for a total of 20 commands: moveto: m, m lineto: l, l, h, h, v, v cubic bézier curve: c, c, s, s quadratic bézier curve: q, q, t, t elliptical arc curve: a, a closepath: z, z note: commands are case-sensitive.
... command parameters notes m (x, y)+ move the current point to the coordinate x,y.
...And 6 more matches

Using custom elements - Web Components
note: custom elements are supported by default in firefox, chrome, and edge (76).
...note that custom element names require a dash to be used in them (kebab-case); they can't be single words.
...over in our html, we use it like so: <popup-info img="img/alt.png" data-text="your card validation code (cvc) is an extra security feature — it is the last 3 or 4 numbers on the back of your card."></popup-info> note: you can see the full javascript source code here.
...And 6 more matches

Preferences - Archive of obsolete content
note: this article doesn't cover all available methods for manipulating preferences; please refer to the xpcom reference pages listed in resources section for the complete list of methods.
...var value = prefs.getboolpref("typeaheadfind"); // get a pref (accessibility.typeaheadfind) prefs.setboolpref("typeaheadfind", !value); // set a pref (accessibility.typeaheadfind) complex types as noted in the previous section, each entry in the preferences database (prefs.js) must have a string, an integer, or a boolean value.
... however, there is a concept of complex types, which makes it easier for developers to save and load nsilocalfile and nsisupportsstring objects in preferences (as strings — note that from the preferences system's point of view, complex values have a nsiprefbranch.pref_string type.) there are two nsiprefbranch methods implementing the concept — setcomplexvalue() and getcomplexvalue().
...And 5 more matches

Menu - Archive of obsolete content
note: this page documents the jetpack prototype, which has since been replaced by the add-on sdk.
...(note that any falsey value will suffice, including undefined, null, and the empty string.
...note that some environments, notably gnome 2.28, do not support menuitem icons either by default or at all.
...And 5 more matches

Using the Editor from XUL - Archive of obsolete content
note that the <editor> element is really just an <iframe> which takes over some of the task of creating the editor from javascript.
... note: since we already know this when we have an <editor></editor> tag, we should remove the need to call this.
... note: these callbacks also fire for every subdocument that loads as a result of the parent document load, for example with frameset documents, or html documents with their own embedded <iframe>s.
...And 5 more matches

Getting started with XULRunner - Archive of obsolete content
note: if you are using firefox build from ubuntuzilla repository, replace /usr/lib/firefox/platform.ini with /opt/firefox/platform.ini.
...see the note below.
... note: in xulrunner 2.0, the chrome.manifest is now used to register xpcom components in addition to its previous uses.
...And 5 more matches

CSS and JavaScript accessibility best practices - Learn web development
note: a high contrast ratio will also allow anyone using a smartphone or tablet with a glossy screen to better read pages when in a bright environment, such as sunlight.
... note: invisible content just for screen reader users has a lot more useful detail surrounding this topic.
... note: server-side validation has not been implemented in this simple demo.
...And 5 more matches

Cascade and inheritance - Learn web development
note: on mdn css property reference pages you can find a technical information box, usually at the bottom of the specifications section, which lists a number of data points about that property, including whether it is inherited or not.
... note: there is also a newer value, revert, which has limited browser support.
... note: see origin of css declarations in introducing the css cascade for more information on each of these and how they work.
...And 5 more matches

CSS values and units - Learn web development
note: you'll also see css values referred to as data types.
... note: yes, css values tend to be denoted using angle brackets, to differentiate them from css properties (e.g.
... note that, while many values accept a length or a percentage, there are some that only accept length.
...And 5 more matches

Practical positioning examples - Learn web development
our simple example will look like this once we are finished: note: you can see the finished example running live at info-box.html (source code).
... note: some web developers take things even further, only having one page of information loaded at once, and dynamically changing the information shown using a javascript feature such as xmlhttprequest.
...first, add the following rule at the bottom of your css to remove the default padding-left and margin-top from the unordered list: .info-box ul { padding-left: 0; margin-top: 0; } note: we are using descendant selectors with .info-box at the start of the chain throughout this example — this is so that we can insert this feature into a page with other content already on it, without fear of interfering with the styles applied to other parts of the page.
...And 5 more matches

Responsive design - Learn web development
note: see this simple liquid layout: example, source code.
... note: see this simple fixed-width layout: example, source code.
... note: the screenshots above are taken using the responsive design mode in firefox devtools.
...And 5 more matches

Creating hyperlinks - Learn web development
note: a url can point to html files, text files, images, text documents, video and audio files, or anything else that lives on the web.
... note: a link title is only revealed on mouse hover, which means that people relying on keyboard controls or touchscreens to navigate web pages will have difficulty accessing title information.
... <a href="https://www.mozilla.org/"> <img src="mozilla-image.png" alt="mozilla logo that links to the mozilla homepage"> </a> note: you'll find out more about using images on the web in a future article.
...And 5 more matches

Images in HTML - Learn web development
note: you should read a quick primer on urls and paths to refresh your memory on relative and absolute urls before continuing.
... note: search engines also read image filenames and count them towards seo.
... our above code would give us the following result: note: elements like <img> and <video> are sometimes referred to as replaced elements.
...And 5 more matches

From object to iframe — other embedding technologies - Learn web development
note: in order to improve speed, it's a good idea to set the iframe's src attribute with javascript after the main content is done with loading.
... note: github pages allow content to be served via https by default, so is useful for hosting content.
...one important note is that you should never add both allow-scripts and allow-same-origin to your sandbox attribute — in that case, the embedded content could bypass the same-origin policy that stops sites from executing scripts, and use javascript to turn off sandboxing altogether.
...And 5 more matches

Video and audio content - Learn web development
note: before you begin here, you should also know that there are quite a few ovps (online video providers) like youtube, dailymotion, and vimeo, and online audio providers like soundcloud.
...here is a <a href="rabbit320.webm">link to the video</a> instead.</p> </video> the features of note are: src in the same way as for the <img> element, the src (source) attribute contains a path to the video you want to embed.
... preload used for buffering large files; it can take one of three values: "none" does not buffer the file "auto" buffers the media file "metadata" buffers only the metadata for the file you can find the above example available to play live on github (also see the source code.) note that we haven't included the autoplay attribute in the live version — if the video starts to play as soon as the page loads, you don't get to see the poster!
...And 5 more matches

HTML table advanced features and accessibility - Learn web development
note: the summary attribute can also be used on the <table> element to provide a description — this is also read out by screenreaders.
... note: you can find our version on github — see timetable-caption.html (see it live also).
... note: <tbody> is always included in every table, implicitly if you don't specify it in your code.
...And 5 more matches

Making decisions in your code — conditionals - Learn web development
this code is pretty human-readable — it is saying "if the condition returns true, run code a, else run code b" you should note that you don't have to include the else and the second curly brace block — the following is also perfectly legal code: if (condition) { code to run if condition is true } run some other code however, you need to be careful here — in this case, the second block of code is not controlled by the conditional statement, so it always runs, regardless of whether the condition returns true or fa...
... note: you can see a more complete version of this example on github (also see it running live.) else if the last example provided us with two choices, or outcomes — but what if we want more than two?
... note: you can also find this example on github (see it running live on there also.) a note on comparison operators comparison operators are used to test the conditions inside our conditional statements.
...And 5 more matches

Introduction to web APIs - Learn web development
note: see also the api glossary entry for further description.
...note that javascript is also available in other programming environments, such as node.
... note: you can find information on a lot more 3rd party apis at the programmable web api directory.
...And 5 more matches

Aprender y obtener ayuda - Learn web development
note: the above text should have given you an important fact — you aren't expected to remember everything!
... note: online code editors are also really useful for sharing code you've written, for example, if you are collaborating on learning with someone else who isn't in the same location, or are sending it someone to ask for help with it.
... note: you might favor one learning method over the others, but realistically a hybrid approach is probably what you will end up with.
...And 5 more matches

Creating our first Vue component - Learn web development
note: if you need to check your code against our version, you can find a finished version of the sample vue app code in our todo-vue repository.
...note that the component file name and its representation in javascript is always in upper camel case (e.g.
... note: prop validation only happens in development mode, so you can't strictly rely on it in production.
...And 5 more matches

Getting started with Vue - Learn web development
note: if you don't have the above installed, find out more about installing npm and node.js here.
... note: we've not gone over all of the options here, but you can find more information on the cli in the vue docs.
... note: this is not the template for managing the layout of your application — this template is for managing static html that sits outside of your vue app.
...And 5 more matches

Eclipse CDT
note: your moz_objdir must be outside the mozilla source directory.
...when changing individual key bindings, note that bindings are context sensitive and that any changes you make may be ignored if they conflict with existing bindings, or if they are overridden by a binding for a more specific context.
... note that the search, call hierarchy, and other tabs have a "pin" button that allows you to open multiple tabs of these type.
...And 5 more matches

IME handling guide
selected clause of raw text typed by the user selection_ime_selectedrawtext eimeselectedrawclause eselectedrawclause converted clause by ime selection_ime_convertedtext eimeconvertedclause econvertedclause selected clause by the user or ime and also converted by ime selection_ime_selectedconvertedtext eimeselectedclause eselectedclause note that typically, "selected clause of raw text typed by the user" isn't used because when composition string is already separated to multiple clauses, that means that the composition string has already been converted by ime at least once.
... note that all instances of textcomposition are managed by imestatemanager.
...note that microsoft word uses this hack.
...And 5 more matches

Download
note: you shouldn't rely on this property being equal to totalbytes to determine whether the download is completed.
... note: you shouldn't rely on this property being equal to 100 to determine whether the download is completed.
... note: this property's value may not match the actual final size of the downloaded file if the download is encoded during the network transfer.
...And 5 more matches

Sqlite.jsm
note: the sqlite.jsm javascript code module can only be used from chrome -- that is, from within the application itself or an add-on.
...please note that this is not a timer on the idle service and this could fire while the application is active.
...see notes below.
...And 5 more matches

Mozilla MathML Status
attribute notes display implemented.
... attribute notes id, class, style implemented.
... token elements element [- attribute] notes mi implemented.
...And 5 more matches

Index
91 jsclass.call jsapi reference, spidermonkey note that when a custom object is called, a this argument is calculated for it just as if it were a function.
...embeddings must not pass jsid_void into jsapi entry points expecting a jsid and do not need to handle jsid_void in hooks receiving a jsid except when explicitly noted in the api contract.
...note also that while for..in includes properties inherited from prototypes, iterator objects do not.) 411 js_newregexpobject jsapi reference, reference, référence(2), spidermonkey js_newregexpobject and js_newucregexpobject create a new regexp instance.
...And 5 more matches

JSAPI User Guide
note: the foss wiki page contains a few links to other libraries and programs that can make life easier when using spidermonkey and jsapi.
...again, note that calling js_reporterror does not cause a c++ exception to be thrown.
... note that the most important example is in the "a minimal example" section above.
...And 5 more matches

Shell global objects
note: this list overlaps with "built-in functions" in introduction to the javascript shell and is probably not complete.
...all disassembly functions take these options as leading string arguments: -r disassemble recursively -l show line numbers -s omit source notes dis([fun/code]) disassemble functions into bytecodes.
... notes([fun]) show source notes for functions.
...And 5 more matches

Places Developer Guide
other bookmarks apis note: this document covers the toolkit places services.
...note: this does not re-index the whole folder - use moveitem for a managed solution.
...note that this service is only currently available for firefox, not other toolkit-based applications.
...And 5 more matches

How to build an XPCOM component in JavaScript
here's the xpidl definition for our helloworld component: helloworld.idl #include "nsisupports.idl" [scriptable, uuid(xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx)] interface nsihelloworld : nsisupports { string hello(); }; note that you must generate a new uuid for each xpcom component that you create.
... for code outside the tree note: on windows if you download the gecko sdk without the whole build tree, you will be missing some required dlls for xpidl.exe and it will run with no errors but not do anything.
... note: the mac version of the sdk provided for download is powerpc-only.
...And 5 more matches

Introduction to XPCOM for the DOM
important note: this document assumes some knowledge of c++, specially the object-oriented part of it.
...the important thing to note is that a pointer to nsifoo can only call the methods defined on the nsifoo interface, and on its parents.
... note: the previous paragraph is extremely important.
...And 5 more matches

mozIStorageStatement
methods initialize() obsolete since gecko 1.9.1 (firefox 3.5 / thunderbird 3.0 / seamonkey 2.0) note: this method has been removed for gecko 1.9.1.
... void finalize(); note: this method does not need to be used from native callers because you have to release the statement in order to not leak.
... note: javascript callers should always wrap their execution in a try block, and have a reset statement in a finally block.
...And 5 more matches

nsICryptoHash
note: this method may be called any time after " ..
... note: this method or " ..
... note: this method or " ..
...And 5 more matches

nsIFile
to create an nsifile from a path you can use fileutils.jsm: var fileutils = cu.import("resource://gre/modules/fileutils.jsm").fileutils var nsifile = new fileutils.file( filename ) note: nsilocalfile was merged with this interface in gecko 14.
... note: the value of the followlinks attribute is not encoded in the persistent descriptor.
... note: this method does not return a new nsifile; it modifies the object it was called on.
...And 5 more matches

nsILocalFileMac
obsolete since gecko 2.0 methods native code only!getcfurl note: observes the state of the followlinks attribute.
...note: supported only for xp_macosx.
...native code only!getfsref note: observes the state of the followlinks attribute.
...And 5 more matches

nsIPrincipal
note that this may be empty; prefer to get the certificate itself and get this information from it, since that may provide more information.
... note: this wasn't accessible by scripts prior to gecko 2.0.
... note: prior to gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1), this was not available to scripts.
...And 5 more matches

characteristic - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetcharacteristic experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 5 more matches

readValue() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetreadvalue experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 5 more matches

uuid - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetuuid experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 5 more matches

value - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetvalue experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 5 more matches

writeValue() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetwritevalue experimentalchrome full support 57notes full support 57notes notes macos only.
... 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 70notes notes windows 10.edge full support ≤79notes full support ≤79notes notes macos only.
...And 5 more matches

Cache - Web APIs
note that the cache interface is exposed to windowed scopes as well as workers.
... note: the key matching algorithm depends on the vary header in the value.
... note: the caching api doesn't honor http caching headers.
...And 5 more matches

Using the Web Audio API - Web APIs
example code our boombox looks like this: note the retro cassette deck with a play button, and vol and pan sliders to allow you to alter the volume and stereo panning.
... note: if you just want to process audio data, for instance, buffer and stream it but not play it, you might want to look into creating an offlineaudiocontext.
... <audio src="mycooltrack.mp3"></audio> note: if the sound file you're loading is held on a different domain you will need to use the crossorigin attribute; see cross origin resource sharing (cors) for more information.
...And 5 more matches

Window.prompt() - Web APIs
note that in internet explorer 7 and 8, if you do not provide this parameter, the string "undefined" is the default value.
... the above prompt appears as follows (in chrome on os x): notes a prompt dialog contains a single-line textbox, a cancel button, and an ok button, and returns the (possibly empty) text the user entered into that textbox.
... please note that result is a string.
...And 5 more matches

ARIA annotations - Accessibility
note: you can find all the examples discussed in this article in a demo file at aria-annotations.
... role="insertion" and role="deletion" — semantically denote html elements whose contents represent an insertion to or deletion from the overall document.
...note that these aren’t part of the new aria annotations features, but they are of central relevance.
...And 5 more matches

position - CSS: Cascading Style Sheets
(note that there are browser inconsistencies with perspective and filter contributing to containing block formation.) its final position is determined by the values of top, right, bottom, and left.
...note that a sticky element "sticks" to its nearest ancestor that has a "scrolling mechanism" (created when overflow is hidden, scroll, auto, or overlay), even if that ancestor isn't the nearest actually scrolling ancestor.
...in the example below, note how the other elements are placed as if "two" were taking up the space of its normal location.
...And 5 more matches

Getting Started - Developer guides
httprequest = new xmlhttprequest(); } else if (window.activexobject) { // ie 6 and older httprequest = new activexobject("microsoft.xmlhttp"); } note: for illustration purposes, the above is a somewhat simplified version of the code to be used for creating an xmlhttp instance.
...at this stage, you need to tell the xmlhttp request object which javascript function will handle the response, by setting the onreadystatechange property of the object and naming it after the function to call when the request changes state, like this: httprequest.onreadystatechange = nameofthefunction; note that there are no parentheses or parameters after the function name, because you're assigning a reference to the function, rather than actually calling it.
... note that if you want to post data, you may have to set the mime type of the request.
...And 5 more matches

Live streaming web audio and video - Developer guides
note: some vendors implement propriety transport protocols, such as realnetworks and their real data transport (rdt).
... note: time shifting is the process of consuming a live stream sometime after it happened.
... note: you can find a guide to encoding hls and mpeg-dash for use on the web at setting up adaptive streaming media sources.
...And 5 more matches

Audio and Video Delivery - Developer guides
note: the preload attribute may be ignored by some mobile browsers.
... note: the autoplay attribute may be ignored by some mobile browsers.
... note: play will be ignored by most browsers unless issued by a user-initiated event.
...And 5 more matches

Audio and video manipulation - Developer guides
note: due to potential security issues if your video is on a different domain than your code, you'll need to enable cors (cross origin resource sharing) on your video server.
... note: you can find the source code of this demo on github (see it live also).
... note that the playbackrate property works with both <audio> and <video>, but in both cases, it changes the playback speed but not the pitch.
...And 5 more matches

User input and controls - Developer guides
note: have a look at the events reference and keyboardevent guide to find out more about keyboard events.
... note: for further information about what you can do with touch events, please read our touch events guide.
... note: pointer events are not widely supported yet, but a pointer.js polyfill is available on mozilla github.
...And 5 more matches

<link>: The External Resource Link element - HTML: Hypertext Markup Language
the rel stands for "relationship", and is probably one of the key features of the <link> element — the value denotes how the item being linked to is related to the containing document.
... other usage notes: a <link> element can occur either in the <head> or <body> element, depending on whether it has a link type that is body-ok.
... note: the importance attribute may only be used for the <link> element if rel="preload" or rel="prefetch" is present.
...And 5 more matches

<th> - HTML: Hypertext Markup Language
note: do not use this attribute as it is obsolete in the latest standard.
... note: do not use this attribute as it is obsolete in the latest standard: use the scope attribute instead.
... lime = "#00ff00" gray = "#808080" olive = "#808000" white = "#ffffff" yellow = "#ffff00" maroon = "#800000" navy = "#000080" red = "#ff0000" blue = "#0000ff" purple = "#800080" teal = "#008080" fuchsia = "#ff00ff" aqua = "#00ffff" note: do not use this attribute, as it is non-standard and only implemented in some versions of microsoft internet explorer: the <th> element should be styled using css.
...And 5 more matches

Firefox user agent string reference - HTTP
note that platform can consist of multiple "; "-separated tokens.
... for other products based on gecko, the string can take one of two forms, where the tokens have the same meaning except those noted below: mozilla/5.0 (platform; rv:geckoversion) gecko/geckotrail appname/appversion mozilla/5.0 (platform; rv:geckoversion) gecko/geckotrail firefox/firefoxversion appname/appversion appname/appversion indicates the application name and version.
...note that the same gecko—with the same capabilities—is shipped to all versions of android.
...And 5 more matches

cfx - Archive of obsolete content
but note that the version must be 4.0b7 or later.
...but note that at present only firefox is supported.
... note the hyphen after "test" in the module name.
...And 4 more matches

StringView - Archive of obsolete content
if you want to see how to create a stringview bigger than its content, please, see this note.
... performance note: each invocation of stringview.makeindex() runs a cycle for all characters contained in the stringview object between startfrom and startfrom + characterslength.
...xamples function mycallback (charcode, characteroffset, rawoffset /*, rawdataarray */) { this.appendchild(document.createtextnode("char #" + characteroffset + ", raw index: " + rawoffset + ", character: " + string.fromcharcode(charcode))); this.appendchild(document.createelement("br")); } (new stringview("\u4367\ud889\ude54\u4343\u5431")).foreachchar(mycallback, document.body); note: stringview.foreachchar() executes a complete cycle through all characters in the stringview between characteroffset and characteroffset + characterslength.
...And 4 more matches

Setting up an extension development environment - Archive of obsolete content
note: for an extended guide on how to set up even more user profiles, take a look at multiple firefox profiles.
... note: you could run firefox using your regular profile while developing.
...note that since many people have this setting turned off when developing, you will see lots of warnings for problems with their code in addition to warnings for your own extension.
...And 4 more matches

Learn XPI Installer Scripting by Example - Archive of obsolete content
first, a quick scan of the contents of the xpi file (which you can open using with any unzip utility) reveals the following high-level directory structure: install.js bin\ chrome\ components defaults\ icons\ plugins\ res\ note that this high-level structure parallels the directory structure of the installed browser very closely: as you will see in the installation script, the contents of the archive are installed onto the file system in much the same way that they are stored in the archive itself, though it's possible to rearrange things arbitrarily upon installation--to create new directories, to install files in s...
... note also that when you call methods on the install--as you do so often in installation scripts (getfolder, initinstall, addfile, and performinstall are all examples of common install object methods)--the install object is implicit; like the window object in regular web page scripts, the install object does not need to be prefixed to the method.
...note that in the first few lines of this process, new content from the xpi is being registered, and in the remainder, it is new skin information.
...And 4 more matches

OpenClose - Archive of obsolete content
note that the open property applies to the menu or button, not to the menupopup.
...note that while the open attribute applies to the parent menu or button, the openpopup method applies to the menupopup element.
... somepopup.openpopup(anchor, "after_start", 10, -2, false, false); note that the anchor and positioning only specifies the position when the popup is opened.
...And 4 more matches

textbox (Toolkit autocomplete) - Archive of obsolete content
note: for seamonkey 2.0 and all versions of thunderbird prior to 3.0 you also need to provide the disablehistory attribute.
... note: for firefox 12 and above, this event handler must be set as an initial attribute.
... note: for firefox 12 and above, this event handler must be set as an initial attribute.
...And 4 more matches

Modifying a XUL Interface - Archive of obsolete content
note this button is not visible, nor is it attached to anything yet.
... note that for all these functions, the object referred to by the variable referencechild or the variables newchild and oldchild must already exist or an error occurs.
... note that some elements, such as listbox and menulist provide some additional specialized modification functions which you should use instead when you can.
...And 4 more matches

Building a Theme - Archive of obsolete content
note: this tutorial is about building themes for firefox 29 and later.
... note: firefox for mac os x has changed some directories so the guide may be obsolete.
...this is a value you come up with to identify your extension in email address format (note that it should not be your email).
...And 4 more matches

Responsive images - Learn web development
note: the new features discussed in this article — srcset/sizes/<picture> — are all supported in release versions of modern desktop and mobile browsers (including microsoft's edge browser, although not internet explorer.) how do you create responsive images?
...you should note that we will be focusing on the html <img>s for this section, as seen in the content area of the example above — the image in the site header is only for decoration, and therefore implemented using css background images.
...for each one, we write: an image filename (elva-fairy-480w.jpg) a space the image's intrinsic width in pixels (480w) — note that this uses the w unit, not px as you might expect.
...And 4 more matches

HTML table basics - Learn web development
name mass (1024kg) diameter (km) density (kg/m3) gravity (m/s2) length of day (hours) distance from sun (106km) mean temperature (°c) number of moons notes terrestial planets mercury 0.330 4,879 5427 3.7 4222.6 57.9 167 0 closest to the sun venus 4.87 12,104 5243 8.9 2802.0 108.2 464 0 earth 5.97 12,756 5514 9.8 24.0 149.6 15 1 our world mars 0.642 6,792 3933 3.7 24.7 227.9 -65 2 the red planet ...
... note: you can also find this on github as simple-table.html (see it live also).
...this works in exactly the same way as a <td>, except that it denotes a header, not a normal cell.
...And 4 more matches

Introducing asynchronous JavaScript - Learn web development
you can try it for yourself: <button>click me</button> note: it is important to remember that alert(), while being very useful for demonstrating a synchronous blocking operation, is terrible for use in real world applications.
... note that not all callbacks are async — some run synchronously.
...let's look at a quick example, from our fetching data from the server article: fetch('products.json').then(function(response) { return response.json(); }).then(function(json) { products = json; initialize(); }).catch(function(err) { console.log('fetch problem: ' + err.message); }); note: you can find the finished version on github (see the source here, and also see it running live).
...And 4 more matches

Functions — reusable blocks of code - Learn web development
note: feel free to enter these lines into your browser's javascript console to re-familiarize yourself with their functionality, if needed.
... note: parameters are sometimes called arguments, properties, or even attributes.
...when called, it always returns a random number between 0 and 1: let mynumber = math.random(); the browser's built-in string replace() function however needs two parameters — the substring to find in the main string, and the substring to replace that string with: let mytext = 'i am a string'; let newstring = mytext.replace('string', 'sausage'); note: when you need to specify multiple parameters, they are separated by commas.
...And 4 more matches

Third-party APIs - Learn web development
note: you might want to just get all our code examples at once, in which case you can then just search the repo for the example files you need in each section.
... note: some apis handle access to their functionality slightly differently, requiring the developer to make an http request to a specific url pattern to retrieve data.
... note: when creating your own examples, you'll use your own api key in place of any placeholder.
...And 4 more matches

Object-oriented JavaScript for beginners - Learn web development
note: the fancy word for the ability of multiple object types to implement the same functionality is polymorphism.
... note: a constructor function name usually starts with a capital letter — this convention is used to make constructor functions easier to recognize in code.
...note that they are using their own name value that was assigned to them when they were created; this is one reason why it is very important to use this, so each one uses its own value, and not some other value.
...And 4 more matches

Getting started with React - Learn web development
the jsx approach allows us to nest our elements within each other, just like we do with html: const header = ( <header> <h1>mozilla developer network</h1> </header> ); note: the parentheses in the previous snippet aren't unique to jsx, and don’t have any effect on your application.
... note: if you have the yarn package manager installed, create-react-app will default to using it instead of npm.
...note the use of ./ at the beginning of the path, and the .svg extension at the end — these tell us that the file is local and that it is not a javascript file.
...And 4 more matches

Implementing feature detection - Learn web development
note how the javascript representations of those properties that are stored inside the htmlelement.style object use lower camel case, not hyphens, to separate the words.
... note: if you have trouble getting this to work, you can compare it to our css-feature-detect-finished.html code (see also the live version).
... note: often such an approach is overkill for a minor feature detection problem — you can often get away with using multiple vendor prefixes and fallback properties, as described in css fallback behavior and handling css prefixes.
...And 4 more matches

Deploying our app - Learn web development
note: cache busting is a new term that we haven't met before in the module.
... the above tasks also break down into further tasks; note that most web development teams will have their own terms and processes for at least some part of the post-development phase.
... "build": "parcel build src/index.html" } note: if the scripts property already has a command inside it, put a comma at the end of it.
...And 4 more matches

Accessibility API cross-reference
ents cross reference table use this info to expand mozilla's accessibility api coverage to include mac, so that we can start to freeze them talk about the fact that msaa uses one interface (iaccessible), wherease gnome accessibility uses a lot of different interfaces depending on the type of object go through the atk info and make sure it's up-to-date accessible roles description & notes msaa role (role_system_*) java accessibility role gnome accessibility role (atk_role_*) mac os x accessibility role aria (role=*) html tagged pdf relevant xul for alerts, in java/gnome for any alert, in msaa if no other role applies.
...aria role denotes interactive (not browsable) content operable in ways that differ from any of the other interactive aria roles, and may be only a part of the main document.
... note a selectable item in a select list.
...And 4 more matches

Configuring Build Options
note: do not make substantive changes to this document without consulting benjamin smedberg <benjamin@smedbergs.us> or one of the build-config peersthis document details how to configure firefox builds.
...note that in the export example below the filename was not mozconfig.
... parallel compilation note: the build system automatically makes an intelligent guess for how many cpu cores to use when building.
...And 4 more matches

Commenting IDL for better documentation
we will take your comments and notes and turn them into beautiful, easy to search and read documentation.
...comment format doxygen supports several comment formats; for style and consistency reasons, we use the following: /** * */ note the two asterisks ("**") on the first line of the comment.
... @note description used to include a note styled paragraph.
...And 4 more matches

Obsolete Build Caveats and Tips
this note below seems redundant as this is true by default https://msdn.microsoft.com/en-us/library/dh8che7s%28v=vs.110%29.aspx note: starting with gecko 7.0, you should no longer include "-zc:wchar_t-" in the command line when building on windows.
...to get this code, do the following: # pull the mozilla source to the folder 191src/ - may take a while # as hundreds of megabytes of history is downloaded to .hg hg clone https://hg.mozilla.org/releases/mozilla-1.9.1/ 191src cd 191src note: starting with gecko 5.0, you can actually build firefox without a .mozconfig file.
...note that you need service pack 1--for the express edition it is a separate download.
...And 4 more matches

Fonts for Mozilla's MathML engine
note that most of these instructions may as well apply to other web rendering engines.
... note:cambria math is installed by default on windows 7 and later versions and should ensure relatively good mathml rendering.
... note: a deprecated version of stix is preinstalled starting with os x lion and should ensure relatively good mathml rendering.
...And 4 more matches

Memory reporting
size_t mystring::sizeofexcludingthis(mozilla::mallocsizeof amallocsizeof) const { return amallocsizeof(mbuffer); } size_t mystring::sizeofincludingthis(mozilla::mallocsizeof amallocsizeof) const { return amallocsizeof(this) + sizeofexcludingthis(amallocsizeof); } (note that sizeofexcludingthis and sizeofincludingthis aren't overrides of methods on a global base class that is common to all reporters.
...that said, note that for some classes these methods may be virtual.) mfbt/memoryreporting.h defines mozilla::mallocsizeof as follows: typedef size_t (*mallocsizeof)(const void* p); functions with this signature measure the size of p by asking the heap allocator how big it is (via moz_malloc_usable_size).
... some other things to note.
...And 4 more matches

SpiderMonkey Build Documentation
mkdir build_opt.obj cd build_opt.obj /bin/sh ../configure.in # use "mozmake" on windows make a few notes about this: the most common build problems are dependency problems.
... note: if you are on mac and getting an error similar to "checking whether the c compiler (gcc-4.2 ) works...
...refer the release notes under command line tools -> new features the release notes also states that this compatibility package will no longer be provided in the near future, so the build system on macos will have to be adapted to look for headers in the sdk until then, the following should help, open /library/developer/commandlinetools/packages/macos_sdk_headers_for_macos_10.14.pk this builds an executable nam...
...And 4 more matches

SpiderMonkey 1.8.7
draft in progress - this is a draft, and right now it's mostly just a copy of the 1.8.5 release notes.
...see the 1.8.5 release notes for information on migrating from earlier versions.
... note that there are a very small number of incompatibilities between es5 and and es3, the version of ecmascript supported by spidermonkey versions 1.5 through 1.8.
...And 4 more matches

TPS Tests
note: be prepared not to use your computer for 15 or so minutes after starting a full run of tps, as it will open and close a fairly large number of firefox windows.
...eps get the source code clone mozilla-central (choose your flavor): hg clone hg.mozilla.org/mozilla-central or git clone github.com/mozilla/gecko-dev cd into the tps folder cd testing/tps create the environment i suggest the path to be outside of the mc source tree python create_venv.py --username=%email% --password=%password% %path% note: if you are updating the tps environment and want to keep your existing config (eg, the existing username and password), you should instead execute: python create_venv.py --keep-config %path% activate the environment source %path%/bin/activate run some tests note that the testfile is not a path, it should only be the filename from services/sync/tests/tps/ runtps --debug --...
...} note that in this example, the foobar@restmail.net account must be registered on stage, otherwise authentication will fail (and the whole test will fail as well.
...And 4 more matches

Building the WebLock UI
the "shell" for the xul file, then, looks like this: <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <dialog id="weblock_ui" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" title="web lock manager" persist="screenx screeny" screenx="24" screeny="24"> </dialog> note that this part of the xul file also contains a stylesheet declaration, which imports css rules and applies them to particular parts of the interface.
... note that this file defines the dialog that displays when the user/administrator clicks the web locking icon in the bottom right corner of the browser.
...r/there.is.only.xul"> <script type="application/javascript" src="chrome://weblock/content/weblock.js"/> <statusbar id="status-bar"> <statusbarpanel class="statusbarpanel-iconic" id="weblock-status" insertbefore="offline-status" oncommand="loadweblock();" status="none"/> </statusbar> </overlay> note that the root element for this file is not a <window/> but an <overlay/>.
...And 4 more matches

mozIJSSubScriptLoader
to get this service, use: var mozijssubscriptloader = components.classes["@mozilla.org/moz/jssubscript-loader;1"] .getservice(components.interfaces.mozijssubscriptloader); note: see components.utils.import for another way to import javascript code.
... note: this method must only be called from javascript!
... note: in versions of gecko prior to gecko 1.9, you could use data: urls as well, but this introduced security concerns, and is no longer permitted.
...And 4 more matches

nsIAccessibleTable
inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview nsiaccessible getcellat(in long rowindex, in long columnindex); note: renamed from cellrefat in gecko 1.9.2 long getcellindexat(in long rowindex, in long columnindex); note: renamed from getindexat in gecko 1.9.2 astring getcolumndescription(in long columnindex); long getcolumnextentat(in long row, in long column); long getcolumnindexat(in long cellindex); note: renamed from getcolumnatindex in gecko 1.9.2 void getrowandcolumnindicesat(in long cellindex, out long rowindex, out long columnindex); astring getrowdesc...
...ription(in long rowindex); long getrowextentat(in long row, in long column); long getrowindexat(in long cellindex); note: renamed from getrowatindex in gecko 1.9.2 void getselectedcellindices(out unsigned long cellsarraysize, [retval, array, size_is(cellsarraysize)] out long cellsarray); note: renamed from getselectedcells in gecko 1.9.2 void getselectedcolumnindices(out unsigned long columnsarraysize, [retval, array, size_is(columnsarraysize)] out long columnsarray); note: renamed from getselectedcolumns in gecko 1.9.2 void getselectedrowindices(out unsigned long rowsarraysize, [retval, array, size_is(rowsarraysize)] out long rowsarray); note: renamed from getselectedrows in gecko 1.9.2 boolean iscellselected(in long rowindex, in long colu...
...note: renamed from columns in gecko 1.9.2 columnheader nsiaccessibletable read only.
...And 4 more matches

nsIAnnotationService
to use this service, use: var annotationservice = components.classes["@mozilla.org/browser/annotation-service;1"] .getservice(components.interfaces.nsiannotationservice); note: the annotation service is not thread-safe.
... note: use of value "1" is omitted due to it's temporary use as expire_never in bug 319455.
... note: all page annotations will get deleted when the page is removed from history if the page is not bookmarked.
...And 4 more matches

nsIChannel
note: as of gecko 19.0, this parameter changed from long to int64_t.
... note: the content type can often be wrongly specified (for example wrong file extension, wrong mime type, wrong document type stored on a server and so on.), and the caller most likely wants to verify with the actual data.
... note: a channel implementation should take care when "caching" an interface pointer queried from its notification callbacks.
...And 4 more matches

nsIContentViewer
note: prior to gecko 10.0 (firefox 10.0 / thunderbird 10.0 / seamonkey 2.7), this attribute was part of nsidocumentviewer.
... note: prior to gecko 10.0 (firefox 10.0 / thunderbird 10.0 / seamonkey 2.7), this attribute was part of nsidocumentviewer.
... note: if the document is currently being printed, it will not be saved in session history.
...And 4 more matches

nsIDOMWindowUtils
note: if there are some panels at the point, this method send the query event to the panel's widget automatically.
... note: event handlers won't get aevent as parameter, but a similar event.
... note: for scrollable frames containing documents (that is, <frame> and <iframe>), the enclosed document's root element is returned.
...And 4 more matches

getFile
c constant string value notes ns_os_home_dir "home" ns_os_temp_dir "tmpd" ns_os_current_working_dir "curworkd" ns_os_desktop_dir "desk" otherwise same as home ns_os_current_process_dir "curprocd" ns_xpcom_current_process_dir "xcurprocd" can be overriden by passing a "bin directory" to ns_initxpcom2().
... ns_xpcom_component_dir "comsd" ns_xpcom_component_dir_list "comsdl" ns_xpcom_component_registry_file "comregf" ns_xpcom_xpti_registry_file "xptiregf" ns_xpcom_library_file "xpcomlib" ns_gre_dir "gred" note: on mac os x, up through firefox 34 this is the contents/macos directory within the application's bundle.
... c constant string value notes ns_os_system_dir "sysd" available on mac os x only these locations are supported only on mac os x versions of gecko.
...And 4 more matches

nsIIOService
note: nsiioservice may only be used from the main thread.
... note: most url parsing is done via nsiuri, and in fact the scheme can also be extracted from a url string via nsiuri.
...please note, aloadingprincipal is *not* the principal of the resource being loaded.
...And 4 more matches

nsIOutputStream
note: blocking output streams are often written to on a background thread to avoid locking up the main application thread.
... note: this method may be called more than once, but subsequent calls are ignored.
... isnonblocking() note: writing to a blocking output stream will block the calling thread until all given data can be consumed by the stream.
...And 4 more matches

nsIProcess
gecko 1.9.1 note this attribute is no longer implemented as of gecko 1.9.1, and is removed entirely in gecko 1.9.2.
... gecko 1.9.1 note this attribute is no longer implemented as of gecko 1.9.1, and is removed entirely in gecko 1.9.2.
... gecko 1.9.1 note this attribute is no longer implemented as of gecko 1.9.1, and is removed entirely in gecko 1.9.2.
...And 4 more matches

nsIZipWriter
note: although it is not necessary to add directory entries in order to add file entries within them, some zip utilities may have problems with that, so it may be best to add the directory entries explicitly first.
... note: you must use forward slashes ('/') in the path.
... note: although it is not necessary to add directory entries in order to add file entries within them, some zip utilities may have problems with that, so it may be best to add the directory entries explicitly first.
...And 4 more matches

Storage
note: storage is not the same as the dom:storage feature which can be used by web pages to store persistent data or the session store api (an xpcom storage utility for use by extensions).
... getter_addrefs(dbfile)); ns_ensure_success(rv, rv); rv = dbfile->append(ns_literal_string("my_db_file_name.sqlite")); ns_ensure_success(rv, rv); nscomptr<mozistorageservice> dbservice = do_getservice(moz_storage_service_contractid, &rv); ns_ensure_success(rv, rv); nscomptr<mozistorageconnection> dbconn; rv = dbservice->opendatabase(dbfile, getter_addrefs(dbconn)); ns_ensure_success(rv, rv); note: moz_storage_service_contractid is defined in storage/build/mozstoragecid.h.
... note: numerical indexes for parameters are always one less than the number you write in the sql.
...And 4 more matches

XPIDL
note: starting in gecko 9.0, the older xpidl utility, which was previously used to generate c++ header files, typelib information, and so forth has been replaced with pyxpidl in the gecko sdk.
...the following is the correspondence table: table 1: standard idl types idl c++ in parameter c++ out parameter js type notes boolean bool bool* boolean char char char* string only chars in range \u0000-\u00ff permitted double double double* number float float float* number long int32_t int32_t* number long long int64_t int64_t* number octet uint8_t uint8_t* number ...
... in addition to this list, nearly every idl file includes nsrootidl.idl in some fashion, which also defines the following types: table 2: types provided by nsrootidl.idl idl typedef c++ in parameter c++ out parameter js type notes prtime (xpidl unsigned long long typedef, 64 bits) number prtime is in microseconds, while js date assumes time in milliseconds nsresult (xpidl unsigned long typedef, 32 bits) number nsrefcnt (xpidl unsigned long typedef, 32 bits) number size_t (xpidl unsigned long typedef, 32 bits) number voidptr void* ...
...And 4 more matches

Edit fonts - Firefox Developer Tools
note: the updated font tools as shown in this article are available in firefox 63 onwards; if you are using an older version of firefox the tools will not look or behave quite the same, but they will be similar (most notably the font editor will not be available).
... note: if you want to use a different unit such as pt for font-size or line-height, you can set the property value applied to the currently inspected element to use that unit via the rules view, and the font editor will automatically pick it up and make it available in the associated units dropdown menu.
... note: for variable fonts (see below) that define a wght variation axis, this range is custom.
...And 4 more matches

Applying styles and colors - Web APIs
note: when you set the strokestyle and/or fillstyle property, the new value becomes the default for all shapes being drawn from then on.
... note: be aware that in our vertical line example, the y position still referenced an integer gridline position—if it hadn't, we would see pixels with half coverage at the endpoints (but note also that this behavior depends on the current linecap style whose default value is butt; you may want to compute consistent strokes with half-pixel coordinates for odd-width lines, by setting the linecap style ...
... note also that only start and final endpoints of a path are affected: if a path is closed with closepath(), there's no start and final endpoint; instead, all endpoints in the path are connected to their attached previous and next segment using the current setting of the linejoin style, whose default value is miter, with the effect of automatically extending the outer borders of the connected segments to their intersection point, so that the rendered stroke will exactly cover full pixels centered at each endpoint if those connected segments are horizontal and/or vertical).
...And 4 more matches

Document.cookie - Web APIs
note that each key and value may be surrounded by whitespace (space and tab characters): in fact, rfc 6265 mandates a single space after each semicolon, but some user agents may not abide by this.
...note that you can only set/update a single cookie at a time using this method.
... note: prior to gecko 6.0, paths with quotes were treated as if the quotes were part of the string, instead of as if they were delimiters surrounding the actual path string.
...And 4 more matches

IDBDatabase - Web APIs
note: this feature is available in web workers.
... note: everything you do in indexeddb always happens in the context of a transaction, representing interactions with data in the database.
...for a complete working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); // these two event handlers act on the idbdatabase object, // when the database is opened successfully, or not dbopenrequest.onerror = function(event) { note.innerhtml += '<li>error loading database.</li>'; }; dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db // variable.
...And 4 more matches

IDBTransaction.oncomplete - Web APIs
note: this feature is available in web workers.
... note: in firefox, if you wish to ensure durability for some reason (e.g.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
...And 4 more matches

IDBTransaction.onerror - Web APIs
note: consider using idbtransaction.onabort instead to handle non- successful completion of the transaction.
... note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
...And 4 more matches

IDBTransaction - Web APIs
note: this feature is available in web workers.
... firefox durability guarantees note that as of firefox 40, indexeddb transactions have relaxed durability guarantees to increase performance (see bug 1112702.) previously in a readwrite transaction idbtransaction.oncomplete was fired only when all data was guaranteed to have been flushed to disk.
...note that this doesn't normally have to be called — a transaction will automatically commit when all outstanding requests have been satisfied and no new requests have been made.
...And 4 more matches

Using the Payment Request API - Web APIs
note: the code snippets from this section are from our feature detect support demo.
... request = new paymentrequest(buildsupportedpaymentmethodnames(), buildshoppingcartdetails()); }); } note: see our feature detect support demo for the full code.
... checkoutbutton.innertext = "checkout with w3c"; }); } note: see our customizing the payment button demo for the full code.
...And 4 more matches

PushEvent - Web APIs
full support 17firefox full support 44notes full support 44notes notes extended support releases (esr) before firefox 78 esr do not support service workers and the push api.ie no support noopera full support 37safari no support nowebview android ...
... no support nochrome android full support 42firefox android full support 44 full support 44 full support 48notes notes push enabled by default.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 ...
... full support 17firefox full support 44notes full support 44notes notes extended support releases (esr) before firefox 78 esr do not support service workers and the push api.ie no support noopera full support 37safari no support nowebview android no support nochrome android full support 42firefox android full suppo...
...And 4 more matches

Using the Web Storage API - Web APIs
the keys and the values are always strings (note that, as with objects, integer keys will be automatically converted to strings).
...these three lines all set the (same) colorsetting entry: localstorage.colorsetting = '#a4509b'; localstorage['colorsetting'] = '#a4509b'; localstorage.setitem('colorsetting', '#a4509b'); note: it's recommended to use the web storage api (setitem, getitem, removeitem, key, length) to prevent the pitfalls associated with using plain objects as key-value stores.
... testing for availability note: this api is available in current versions of all major browsers.
...And 4 more matches

Web accessibility for seizures and physical reactions - Accessibility
the fact that static images may cause seizures and other disorders is documented in such articles as “gamma oscillations and photosensitive epilepsy”, where it is noted “certain visual images, even in the absence of motion or flicker, can trigger seizures in patients with photosensitive epilepsy” the epilepsy foundation, in its article, "shedding light on photosensitivity, one of epilepsy's most complex conditions" talks about static images and patterns.
...selim benbadis of usf's comprehensive epilepsy program notes, "the only thing that is really documented is flashing lights, which can trigger seizures in patients with photosensitive epilepsy.
...in its article, "a revised definition of epilepsy" the epilepsy foundation notes that…"a seizure is an event and epilepsy is the disease involving recurrent unprovoked seizures." according to the epilepsy foundation's page "how serious are seizures?" , "sudden unexpected death in epilepsy (sudep) is likely the most common disease-related cause of death in with epilepsy.
...And 4 more matches

Perceivable - Accessibility
note: to read the w3c definitions for perceivable and its guidelines and success criteria, see principle 1: perceivable - information and user interface components must be presentable to users in ways they can perceive.
... note: also see the wcag description for guideline 1.1: text alternatives.
...note that if the audio/video serves as an alternative to existing text content, you don't need to provide another text alternative.
...And 4 more matches

display - CSS: Cascading Style Sheets
note: browsers that support the two value syntax, on finding the outer value only, such as when display: block or display: inline is specified, will set the inner value to flow.
... note: browsers that support the two value syntax, on finding the inner value only, such as when display: flex or display: grid is specified, will set their outer value to block.
... note: in browsers that support the two-value syntax, if no inner value is specified it will default to flow.
...And 4 more matches

font-variant - CSS: Cascading Style Sheets
to change preferences in firefox, visit about:config.opera android full support 41safari ios full support 9.3samsung internet android full support 6.0greek accented characterschrome no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.edge no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.firefox no supp...
...ort nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.ie no support noopera no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.safari no support nowebview android no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek.chrome android no support ...
... nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.firefox android no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.opera android no support nonotes no support nonotes notes some operating systems may correctly omit accents in all-uppercase greek text.safari ios no support nosamsung internet android no support nonotes ...
...And 4 more matches

Setting up adaptive streaming media sources - Developer guides
note: you will need to be comfortable with make files and installing dependencies to get this software up and running.
... note: since mpeg-dash decoding is done partially using javascript and mse files are often grabbed using xhr, keep same origin rules in mind.
... note: if you use webm you can use the methods shown in this tutorial dash adaptive streaming for html 5 video.
...And 4 more matches

HTML attribute reference - HTML: Hypertext Markup Language
note: although browsers and email clients may still support this attribute, it is obsolete.
... note: this is a legacy attribute.
... note: this is a legacy attribute.
...And 4 more matches

<a>: The Anchor element - HTML: Hypertext Markup Language
notes: download only works for same-origin urls, or the blob: and data: schemes.
... note: when using target, add rel="noreferrer noopener" to avoid exploitation of the window.opener api; note: in newer browser versions (e.g.
... note: this attribute is obsolete and should not be used by authors.
...And 4 more matches

<input type="number"> - HTML: Hypertext Markup Language
note: avoid using the placeholder attribute if you can.
... note: because a read-only field cannot have a value, required does not have any effect on inputs with the readonly attribute also specified.
... note: when the data entered by the user doesn't adhere to the stepping configuration, the user agent may round to the nearest valid value, preferring numbers in the positive direction when there are two equally close options.
...And 4 more matches

<input type="search"> - HTML: Hypertext Markup Language
note: avoid using the placeholder attribute if you can.
... note: because a read-only field cannot have a value, required does not have any effect on inputs with the readonly attribute also specified.
... note: this has been standardized as the global attribute enterkeyhint, but is not yet widely implemented.
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<tfoot>: The Table Foot element - HTML: Hypertext Markup Language
note that this is the requirement as of html5.
...note that this directly contradicts the above normative requirement from html5.
... note: do not use this attribute as it is obsolete (not supported) in the latest standard.
...And 4 more matches

WebAssembly.Memory - JavaScript
desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 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 8.0.0memory() 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 ...
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Lexical grammar - JavaScript
\r u+2028 line separator <ls> wikipedia u+2029 paragraph separator <ps> wikipedia comments comments are used to add hints, notes, suggestions, or warnings to javascript code.
...note also that no whitespace of any kind is permitted before the #!.
...an example is as follows: #!/usr/bin/env node console.log("hello world"); note: hashbang comments in javascript mimic shebangs in unix used to run files with proper interpreter.
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this - JavaScript
// in web browsers, the window object is also the global object: console.log(this === window); // true a = 37; console.log(window.a); // 37 this.b = "mdn"; console.log(window.b) // "mdn" console.log(b) // "mdn" note: you can always easily get the global object using the global globalthis property, regardless of the current context in which your code is running.
...all non-static methods within the class are added to the prototype of this: class example { constructor() { const proto = object.getprototypeof(this); console.log(object.getownpropertynames(proto)); } first(){} second(){} static third(){} } new example(); // ['constructor', 'first', 'second'] note: static methods are not properties of this.
...(c, d) { return this.a + this.b + c + d; } var o = {a: 1, b: 3}; // the first parameter is the object to use as // 'this', subsequent parameters are passed as // arguments in the function call add.call(o, 5, 7); // 16 // the first parameter is the object to use as // 'this', the second is an array whose // members are used as the arguments in the function call add.apply(o, [10, 20]); // 34 note that in non–strict mode, with call and apply, if the value passed as this is not an object, an attempt will be made to convert it to an object.
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Web video codec guide - Web media technologies
note the blue and pink fringes around the edges of the star above (as well as the stepping and other significant compression artifacts).
... note the blockiness of the colors in the plumage of the bald eagle in the photo above (and the snowy owl in the background).
... in the example image above, note how the sky has bands of different shades of blue, instead of being a consistent gradient as the sky color changes toward the horizon.
...And 4 more matches

Codecs used by WebRTC - Web media technologies
note: these requirements are for web browsers and other fully-webrtc compliant products.
... other notes the network payload format for sharing vp8 using rtp (such as when using webrtc) is described in rfc 7741: rtp payload format for vp8 video.
...this is useful to note, since in rfc 6184 ("rtp payload format for h.264 video"), profile-level-id is entirely optional.
...And 4 more matches

Performance fundamentals - Web Performance
note: humans usually cannot perceive differences in framerate above 60hz.
... note: for much more information on improving startup performance, read optimizing startup performance.
... on the same note, notice that locally-cached, static resources can be loaded much faster than dynamic data fetched over high-latency, low-bandwidth mobile networks.
...And 4 more matches

Add to Home screen - Progressive web apps (PWAs)
(note: in android 8 and higher, a system-level "add to home screen" permission dialog will be shown first.) if you have mobile chrome available, the experience is slightly different; upon loading our site, you'll see an install banner pop up asking whether you want to add this app to your home screen.
... note: you can find out a lot more about chrome install banners from the article web app install banners.
... note: the .webmanifest extension is specified in the media type registration section of the specification, but generally browsers will support manifests with other appropriate extensions, e.g.
...And 4 more matches

Chapter 5: Let's build a Firefox extension - Archive of obsolete content
one point you need to take special note of is that in step 4, you updated chrome.manifest so that the files it refers to have paths pointing inside the zip archive.
...since you’ve already got the development version of the hello world extension running as a test install on your current profile, restart firefox under a different profile (see footnote 1).
...erate menu items (event handler) createmenu: function(event) { }, // read file _readfile: function(afile) { }, // write file _writefile: function(afile, adata) { }, }; window.addeventlistener("load", function(){ gsessionstore.init(); }, false); window.addeventlistener("unload", function(){ gsessionstore.uninit(); }, false); wrap methods and variables as properties of objects you’ll note that in listing 15, i’ve defined a lot of different methods and variables as properties of a single object, gsessionstore.
...And 3 more matches

Underscores in class and ID Names - Archive of obsolete content
note: browser support for underscores in css has greatly improved since this article was originally published in 2001 and the following recommendation is no longer accurate for most circumstances.
...this technical note examines the use of underscores in css, and why they should be generally avoided in most circumstances.
... the css1 specification, published in its final form in 1996, did not allow for the use of underscores in class and id names unless they were "escaped." an escaped underscore would look something like this: p.urgent\_note {color: maroon;} this was not well supported by browsers at the time, however, and the practice has never caught on.
...And 3 more matches

Layout System Overview - Archive of obsolete content
(note: it is unclear if this is really a benefit - it may have been better to use a copy of the content model for each presentation, and to remove the complexity of managing separate presentations - analysis is needed here).
...note that lines may contain only inline elements, whereas block may contain both inline elements and other blocks.other layout models: xul in addition to managing css-defined formatting, the layout system provides a way to integrate other layout schemes into the presentation.
...the presentation shell is the root of the presentation, and as such it owns and manages a lot of layout objects that are used to create and maintain a presentation (note that the documentviewer is the owner of the presentation shell, and in some cases the creator of the objects used by the presentation shell to manage the presentation.
...And 3 more matches

Priority Content - Archive of obsolete content
note: use example at sample:original document information to credit original authors.
... devedge devedge mirror note: if you're digging around the mirror and see anything there that you think should be migrated to devmo that isn't on this list, feel free to add it below.
...keller licensing: these css charts appear to be under a cc:by-nc-sa license, please make note of that on the page when you do the migration.
...And 3 more matches

Table Layout Regression Tests - Archive of obsolete content
execute the baseline test shutdown the layoutdebugger execute mozilla -layoutdebug - p foo >selftest.txt execute the verify test make a note which tests have failed grep 'failed' selftest.txt (these are false positives, quite frequently they indicate reflow problems, pages showing differently when loaded from cache) make your changes to the source, recompile.
... execute mozilla -layoutdebug - p foo >outputfile.txt execute the verify test make a note which tests have failed grep 'failed' outputfile.txt check how many tests have failed and analyze your results: if the regression tests have failed at the same place as the previous diagnosed false positives => ignore try to figure out what the other regressions are: are they improving the picture or are they regressions?
... note the difficult to explain test failures.
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Reading from Files - Archive of obsolete content
file and stream guide: [ nsiscriptableio | accessing files | getting file information | reading from files | writing to files | moving, copying and deleting files | uploading and downloading files | working with directories ] important note: the pages from the file and stream guide use the io object (nsiscriptableio), which was not available in any released version of the platform (pending some fixes).
...note that this is distinct from the number of bytes to read.
...note that this method returns the number of bytes available, not the number of characters available, because the file hasn't been read and parsed yet, so the actual number of characters isn't known yet.
...And 3 more matches

textbox - Archive of obsolete content
note that decimal numbers are stored as floats.
... note: the behavior of this event has evolved over time.
... note: the behavior of this event has evolved over time.
...And 3 more matches

Archived Mozilla and build documentation - Archive of obsolete content
liveconnect gives your extension's javascript code (linked from or contained in xul code) access to 2 objects: java and packages (note that per this thread, although the new documentation for the liveconnect reimplementation states that these globals will be deprecated (in the context of applets), "firefox and the java plug-in will continue to support the global java/packages keywords, in particular in the context of firefox extensions.").
...note that this document is for your information only and is not intended as legal advice.
... new skin notes devmo has a new skin that is ready for testing.
...And 3 more matches

Sunbird Theme Tutorial - Archive of obsolete content
to make a theme, you usually need these tools: a jar tool or zip tool an editor for plain text files software for creating and editing images note: some zip tools only work with files whose names have <tt>.zip</tt> at the end.
...note: if the <tt>extensions</tt> directory is empty, you are in the wrong place—start again and follow the instructions more carefully.
...note: if your theme is for a version of sunbird later than 0.4, then also change the maxversion.
...And 3 more matches

Theme changes in Firefox 4 - Archive of obsolete content
it's also important to note that skin files are now split into two subfolders within the omni.jar file, and you'll need to look in both places to find all the skin resources you need.
... note: when extracting omni.jar, you may incorrectly get false warnings from some virus protection software.
... iconsize value actual add-on toolbar button icon dimensions (assuming correct stylesheet and images) small 16x16 pixels large 24x24 pixels note: for stock buttons, the theme is free to use icons of any size.
...And 3 more matches

Anatomy of a video game - Game development
here is an example of a simple main loop: window.main = function () { window.requestanimationframe( main ); // whatever your main loop needs to do }; main(); // start the cycle note: in each of the main() methods discussed here, we schedule a new requestanimationframe before performing our loop contents.
... note: in practice, it is more common to prevent the next requestanimationframe() with an if-statement, rather than calling cancelanimationframe().
... note: systems (hardware or software) that are not capable of microsecond accuracy are allowed to provide millisecond accuracy as a minimum.
...And 3 more matches

Mobile accessibility - Learn web development
note: you can get to your home screen at any time by swiping up and left in a smooth motion.
... note: see get started on android with talkback for more complete documentation.
... note: some older ios devices have the voiceover menu at settings app > general > accessibility > voiceover.
...And 3 more matches

Accessible multimedia - Learn web development
note that we also check to see if the currenttime is more than the total media duration, or if the media is not playing, when the fwd button is pressed.
...if the audio you are presenting is something like a face to face meeting or live spoken performance, it would be acceptable to take notes during the performance, publish them in full along with the audio, then seek help in cleaning up the notes afterwards.
... note: an audio transcript will in general help multiple user groups.
...And 3 more matches

Introduction to CSS layout - Learn web development
let's look at a quick html example: <p>i love my cat.</p> <ul> <li>buy cat food</li> <li>exercise</li> <li>cheer up friend</li> </ul> <p>the end!</p> by default, the browser will display this code as follows: note here how the html is displayed in the exact order in which it appears in the source code, with elements stacked up on top of one another — the first paragraph, followed by the unordered list, followed by the second paragraph.
... note: the direction in which block element contents are laid out is described as the block direction.
... flexbox example 2 * {box-sizing: border-box;} .wrapper > div { border-radius: 5px; background-color: rgb(207,232,220); padding: 1em; } .wrapper { display: flex; } .wrapper > div { flex: 1; } <div class="wrapper"> <div class="box1">one</div> <div class="box2">two</div> <div class="box3">three</div> </div> note: this has been a very short introduction to what is possible in flexbox, to find out more, see our flexbox article.
...And 3 more matches

Styling links - Learn web development
default styles the following example illustrates what a link will behave like by default (the css is simply enlarging and centering the text to make it stand out more.) <p><a href="#">a simple link</a></p> p { font-size: 2rem; text-align: center; } note: all the links in the examples in this page are fake links — a # (hash, or pound sign) is put in place of the real url.
... note: you are not just limited to the above properties to style your links — you are free to use any properties you like.
...two points to note here are: the underline has been created using border-bottom, not text-decoration — some people prefer this because the former has better styling options than the latter, and is drawn a bit lower, so doesn't cut across the descenders of the word being underlined (e.g.
...And 3 more matches

Other form controls - Learn web development
note that even though you can put anything inside a <textarea> element (including other html elements, css, and javascript), because of its nature, it is all rendered as if it was plain text content.
... note: you can find a slightly more interesting example of text area usage in the example we put together in the first article of the series (see the source code also).
... note: you can find examples of all the drop-down box types on github at drop-down-content.html (see it live also).
...And 3 more matches

Your first form - Learn web development
note: we'll look at how those attributes work in our sending form data article later on.
...note the use of the for attribute on all <label> elements, which takes as its value the id of the form control with which it is associated — this is how you associate a form control with its label.
... last but not least, note the syntax of <input> vs.
...And 3 more matches

CSS basics - Learn web development
(the term ruleset is often referred to as just rule.) note the names of the individual parts: selector this is the html element name at the start of the ruleset.
...(for example, there are many color values in addition to red.) note the other important parts of the syntax: apart from the selector, each ruleset must be wrapped in curly braces.
... html { font-size: 10px; /* px means "pixels": the base font size is now 10 pixels high */ font-family: "open sans", sans-serif; /* this should be the rest of the output you got from google fonts */ } note: anything in css between /* and */ is a css comment.
...And 3 more matches

What’s in the head? Metadata in HTML - Learn web development
for example, your page could handle english and japanese just fine: if you set your character encoding to iso-8859-1, for example (the character set for the latin alphabet), your page rendering may appear all messed up: note: some browsers (e.g.
... note: in google, you will see some relevant subpages of mdn web docs listed below the main homepage link — these are called sitelinks, and are configurable in google's webmaster tools — a way to make your site's search results better in the google search engine.
... note: many <meta> features just aren't used any more.
...And 3 more matches

Manipulating documents - Learn web development
e> </head> <body> <section> <img src="dinosaur.png" alt="a red tyrannosaurus rex: a two legged dinosaur standing upright like a human, with small arms, and a large head with lots of sharp teeth."> <p>here we will add a link to the <a href="https://www.mozilla.org/">mozilla homepage</a></p> </section> </body> </html> the dom on the other hand looks like this: note: this dom tree diagram was created using ian hickson's live dom viewer.
...add the following line, again at the bottom: link.href = 'https://developer.mozilla.org'; note that, as with many things in javascript, there are many ways to select an element and store a reference to it in a variable.
...if you look at that paragraph in your browser's page inspector/dom inspector, you'll see that these lines are indeed adding inline styles to the document: <p style="color: white; background-color: black; padding: 10px; width: 250px; text-align: center;">we hope you enjoyed the ride.</p> note: notice how the javascript property versions of the css styles are written in lower camel case whereas the css versions are hyphenated (e.g.
...And 3 more matches

Website security - Learn web development
note: this is an introductory topic, designed to help you start thinking about website security, but it is not exhaustive.
...as you read, note how threats are most successful when the web application either trusts, or is not paranoid enough about the data coming from the browser.
... note: xss vulnerabilities have been historically more common than any other type of security threat.
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Accessibility in React - Learn web development
note how "main render" logged first, and "side effect" logged second, even though the "side effect" log appears first in the code.
...using pseudocode, our logic should be something like this: if (wasnoteditingbefore && iseditingnow) { focusoneditfield() } if (waseditingbefore && isnoteditingnow) { focusoneditbutton() } the react team had discussed ways to get a component’s previous state, and has provided an example custom hook we can use for the job.
...with isediting as an argument: const wasediting = useprevious(isediting); with this constant, we can update our useeffect() hook to implement the pseudocode we discussed before — update it as follows: useeffect(() => { if (!wasediting && isediting) { editfieldref.current.focus(); } if (wasediting && !isediting) { editbuttonref.current.focus(); } }, [wasediting, isediting]); note that the logic of useeffect() now depends on wasediting, so we provide it in the array of dependencies.
...And 3 more matches

Working with Svelte stores - Learn web development
give it the following content: import { writable } from 'svelte/store' export const alert = writable('welcome to the to-do list app!') note: stores can be defined and used outside of svelte components, so you can organize them in any way you please.
... note: outside of svelte components you cannot use the $store syntax.
... note: if you are following this guide working from the svelte repl you won't be able to complete this step.
...And 3 more matches

Dynamic behavior in Svelte: working with variables and props - Learn web development
note: svelte uses the $: javascript label statement syntax to mark reactive statements.
...add this snippet at the end of the <script> section: $: console.log('newtodoname: ', newtodoname) note: as you may have noticed, reactive statements aren't limited to variable declarations.
...add this to the bottom of your <script> block inside src/components/todo.svelte: function addtodo() { todos.push({ id: 999, name: newtodoname, completed: false }) newtodoname = '' } note: for the moment we are just assigning the same id to every todo, but don't worry, we will fix that soon.
...And 3 more matches

Focus management with Vue refs - Learn web development
it's important to note that a ref needs to be unique within a component.
... note: the vue docs provide a nice diagram for visualizing when these hooks happen.
... in todoitemeditform.vue, attach ref="labelinput" to the <input> element, like so: <input :id="id" ref="labelinput" type="text" autocomplete="off" v-model.lazy.trim="newname" /> next, add a mounted() property just inside your component object — note that this should not be put inside the methods property, but rather at the same hierarchy level as props, data(), and methods.
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Debugging on Mac OS X
these builds enable hardened runtime and only differ from production builds in that they are not notarized which should not otherwise affect functionality, (other than the ability to easily launch the browser on macos 10.15+ -- see quarantine note below).
...note that disabling sip bypasses hardened runtime restrictions which can mask some bugs that only occur with hardened runtime so it is recommended to test fixes with sip enabled.
... note also that since xcode 7.3.1 it doesn't seem to be possible to have the xcode project live outside the source tree.
...And 3 more matches

HTTP logging
note: the web console also offers the ability to peek at http transactions within firefox.
...go to the web site that is broken for you and make the bug happen in the browser) make a note of the value of "current log file".
... note that this approach winds up logging the whole browser history, so files can get rather large (they compress well :) setting environment variables differs by operating system.
...And 3 more matches

Eclipse CDT Manual Setup
note the requirements that this method of build option discovery imposes on us.
... conversely, note this very carefully: if you configure eclipse to invoke a build process that is parallelized, silenced, or that fails to identify the directory that the compiler is being run from, then it will mess up the compiler options that eclipse associates with your files, and that in turn will significantly degrade the quality of the code assistance that eclipse will provide after it next re-indexes the c...
... to avoid confusion in this and the following sections, note that "workspace preferences" and "project properties" are different things (we'll get to the details below).
...And 3 more matches

Displaying Places information using views
note: starting in gecko 2.0, you can't use the place attribute with menus.
...note that in the latter case it is not sufficient to call setattribute on the element; use the element's place property instead.
... note: starting in gecko 2.0, nsinavhistoryresultviewer has been replaced by the more powerful nsinavhistoryresultobserver.
...And 3 more matches

Mozilla Content Localized in Your Language
note: if this doens't apply, how is expressed in your language to indicate importance or name of a movie, book title, product uis (save, file...).
...note: if this doens't apply, indicate so with n/a.
...note: if this doens't apply, indicate so with n/a.
...And 3 more matches

DMD
note that stack information you get will likely be less detailed, due to being unable to symbolicate.
...note that on mac this step can take 30+ seconds.
...(if you are familiar with the recommended "--es env0" method for setting environment variables when launching fennec, note that you cannot use this method here because those are processed too late in the startup process.
...And 3 more matches

NSS environment variables
note: nss environment variables are subject to be changed and/or removed from nss.
...note: the code must be built with pkix_object_leak_test defined to use this functionality.
... 3.11 ssldebug integer debug level note: the code must be built with debug defined to use this functionality.
...And 3 more matches

SpiderMonkey 1.8.5
note that version 1.8.5 is outdated.
... note that there are a very small number of incompatibilities between es5 and and es3, the version of ecmascript supported by spidermonkey versions 1.5 through 1.8.
...note also that spidermonkey can now fit a full 32-bit integer (jsint) inside a jsval without promoting to a jsdouble.
...And 3 more matches

XPCOM array guide
note that this class differs from the other array types by using unsigned indices.
... nsisupportsarray xpcom object yes no yes* no reference counted, strong (*) note: concrete c++ arrays can be made read-only by declaring them const.
...note that if the nstarray<t> holds pointers to objects, the objects will not be deleted (and hence not have their destructors called).
...And 3 more matches

nsIJSON
1.0 66 introduced gecko 1.9 inherits from: nsisupports last changed in gecko 7.0 (firefox 7.0 / thunderbird 7.0 / seamonkey 2.4) note: this interface may only be used from javascript code, with the exception of the legacydecodetojsval() method.
...to create an instance, use: var nativejson = components.classes["@mozilla.org/dom/json;1"] .createinstance(components.interfaces.nsijson); method overview note: the idl file has portions of the idl commented out because they represent things that can't actually be properly described by idl; however, for the purposes of this article, we'll pretend they can be and ignore that issue.
... note: this method is more flexible than it should be, and accepts some not-correctly-structured json.
...And 3 more matches

nsITreeView
constants constant value description progress_normal 1 note: renamed from progressnormal in gecko 1.8 progress_undetermined 2 note: renamed from progressundetermined in gecko 1.8 progress_none 3 note: renamed from progressnone in gecko 1.8 drop_before -1 drop_on 0 drop_after 1 indropbefore 0 obsolete since gecko 1.8 indropon 1 ...
... note: drop_on will only be passed to candrop() if the item is a container; see iscontainer().
...(note that this is not the column index.) return value the text of the cell.
...And 3 more matches

nsIWebProgressListener
note: for document requests, a second state_stop is generated (see the description of state_is_window for more details).
... note: if any progress value is unknown, or if its value would exceed the maximum value of type long, then its value is replaced with -1.
... note: if the object also implements nsiwebprogresslistener2 and the caller knows about that interface, this function will not be called.
...And 3 more matches

nsIWindowMediator
note this method is advisory only: it changes nothing either in windowmediator's internal state or with the window.
... note: it compares the nsixulwindow to nsiwidgets.
... note: starting in gecko 8.0, the returned value is an nsidomwindow; previously, it was an nsidomwindowinternal.
...And 3 more matches

Add to iPhoto
note: this extension uses carbon routines, which can no longer be used in firefox add-ons now that firefox is a 64-bit application.
... note: in a few cases, this code takes the easy way out by using ctypes.voidptr_t instead of a typed pointer.
...the interesting things to note about the declaration of corefoundation.cfurlcreatefromfilesystemrepresentation() are: it returns a cfurlref, which is an opaque pointer similar to the cfstringref we noted above.
...And 3 more matches

about:debugging - Firefox Developer Tools
note: you do not need to install the full android studio sdk.
... note: if the version of firefox on your remote device is more than one major version older than the version running on your computer, you may see a message like the following: in firefox 76 and above, the message can look like the following: see connection for firefox for android 68 for more information.
... note: it's recommended that you use the browser toolbox, not the add-on debugger, for debugging webextensions.
...And 3 more matches

BiquadFilterNode() - Web APIs
please note that for this filter type, this value is not a traditional q, but is a resonance value in decibels.
...please note that for this filter type, this value is not a traditional q, but is a resonance value in decibels.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetbiquadfilternode() constructorchrome full support 55notes full support 55notes notes before chrome 59, the default values were not supported.edge full support ≤79firefox full support 53ie no support noopera full support 42notes ...
...And 3 more matches

Drawing shapes with canvas - Web APIs
note: when the current path is empty, such as immediately after calling beginpath(), or on a newly created canvas, the first path construction command is always treated as a moveto(), regardless of what it actually is.
... note: when you call fill(), any open shapes are closed automatically, so you don't have to call closepath().
... note: to learn more about the arc() function, see the arcs section below.
...And 3 more matches

Document.write() - Web APIs
note: because document.write() writes to the document stream, calling document.write() on a closed (loaded) document automatically calls document.open(), which will clear the document.
... example <html> <head> <title>write example</title> <script> function newcontent() { document.open(); document.write("<h1>out with the old, in with the new!</h1>"); document.close(); } </script> </head> <body onload="newcontent();"> <p>some original document content.</p> </body> </html> notes the text you write is parsed into the document's structure model.
...for example: <script> document.write("<h1>main title</h1>") </script> note: document.write() and document.writeln do not work in xhtml documents (you'll get an "operation is not supported" [ns_error_dom_not_supported_err] error in the error console).
...And 3 more matches

Element.getClientRects() - Web APIs
firefox 3.5 note firefox 3.5 adds width and height properties to the textrectangle object.
...note that the javascript function that paints the client rects is connected to the markup via the class withclientrectsoverlay.
...note that the p has onlyone border box, while the span has multiple border boxes.</p> <div> <strong>original</strong> <p> <span>paragraph that spans multiple lines</span> </p> </div> <div> <strong>p's rect</strong> <p class="withclientrectsoverlay"> <span>paragraph that spans multiple lines</span> </p> </div> <div> <strong>span's rect</strong> <p> <span class="withclientrectsoverlay">paragraph that spans multiple lines</sp...
...And 3 more matches

Element.querySelectorAll() - Web APIs
note: this method is implemented based on the parentnode mixin's queryselectorall() method.
... note: characters which are not part of standard css syntax must be escaped using a backslash character.
... note: if the specified selectors include a css pseudo-element, the returned list is always empty.
...And 3 more matches

FileSystemDirectoryEntry - Web APIs
nosafari ios full support 11.3samsung internet android full support yesgetdirectory experimentalchrome full support 8edge full support 79firefox full support 50notes full support 50notes notes in firefox, the errorcallback's input parameter is a domexception rather than a fileerror object.ie no support noopera no support nosafari full support 11.1webview android fu...
...ll support ≤37chrome android full support 18firefox android full support 50notes full support 50notes notes in firefox, the errorcallback's input parameter is a domexception rather than a fileerror object.opera android no support nosafari ios full support 11.3samsung internet android full support yesgetfile experimentalchrome full support 8edge full support 79firefox full support ...
... 50notes full support 50notes notes in firefox, the errorcallback's input parameter is a domexception rather than a fileerror object.ie no support noopera no support nosafari full support 11.1webview android full support ≤37chrome android full support 18firefox android full support 50notes full support 50notes notes in firefox, the errorcallback's input parameter is a domexception rather than a fileerror object.opera andr...
...And 3 more matches

FileSystemFlags - Web APIs
note that these option flags currently don't have any useful meaning when used in the scope of web content, where security precautions prevent the creation of new files or the replacement of existing ones.
... 13prefixed full support 13prefixed prefixed implemented with the vendor prefix: webkitedge full support ≤79prefixed full support ≤79prefixed prefixed implemented with the vendor prefix: webkitfirefox partial support 50notes partial support 50notes notes for security reasons, firefox does not support creating files.
...esprefixed full support yesprefixed prefixed implemented with the vendor prefix: webkitchrome android full support yesprefixed full support yesprefixed prefixed implemented with the vendor prefix: webkitfirefox android partial support 50notes partial support 50notes notes for security reasons, firefox does not support creating files.
...And 3 more matches

Drag Operations - Web APIs
note: when an element is made draggable, text or other elements within it can no longer be selected in the normal way by clicking and dragging with the mouse.
... note that both the text/uri-list and text/plain contain the same data in this example.
... note that these values must be used exactly as listed above.
...And 3 more matches

Working with the History API - Web APIs
note: calling history.back() normally behaves the same way as clicking the back button.
...note that the browser won't attempt to load this url after a call to pushstate(), but it might attempt to load the url later, for instance after the user restarts the browser.
... note: in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) through gecko 5.0 (firefox 5.0 / thunderbird 5.0 / seamonkey 2.2), the passed object is serialized using json.
...And 3 more matches

IDBObjectStore.createIndex() - Web APIs
note that this method must be called only from a versionchange transaction mode callback.
... note: this feature is available in web workers.
...note that it is possible to create an index with an empty name.
...And 3 more matches

IDBTransaction.error - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
... note the transaction.onerror = function(event) { }; block, making use of transaction.error to help in reporting what went wrong when the transaction was unsuccessful.
...And 3 more matches

IDBTransaction.onabort - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
... note the transaction.onabort = function(event) { }; block, reporting when the transaction has been aborted.
...And 3 more matches

ImageCapture.takePhoto() - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internettakephoto experimentalchrome full support 60 full support 60 no support 59 — 60notes notes photosettings argument not supported.edge full support ≤79firefox ?
... opera full support 47 full support 47 no support 46 — 47notes notes photosettings argument not supported.safari ?
... webview android full support 60 full support 60 no support 59 — 60notes notes photosettings argument not supported.chrome android full support 60 full support 60 no support 59 — 60notes notes photosettings argument not supported.firefox android ?
...And 3 more matches

NotificationEvent - Web APIs
note: this interface is specified in the notifications api, but accessed through serviceworkerglobalscope.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetnotificationevent experimentalchrome full support 42edge full support ≤18firefox full support 44notes full support 44notes notes extended support releases (esr) before firefox 78 esr do not support service workers and the push api.ie ?
... samsung internet android full support 4.0notificationevent() constructor experimentalchrome full support 42edge full support ≤18firefox full support 44notes full support 44notes notes extended support releases (esr) before firefox 78 esr do not support service workers and the push api.ie ?
...And 3 more matches

Using the Screen Capture API - Web APIs
note: it may be useful to note that recent versions of the webrtc adapter.js shim include implementations of getdisplaymedia() to enable screen sharing on browsers that support it but do not implement the current standard api.
... note: unlike most uses of constraints in media apis, here it's solely used to define the stream configuration, and not to filter the available choices.
... note: constraints never cause changes to the list of sources available for capture by the screen sharing api.
...And 3 more matches

WebGL model view projection - Web APIs
note: this article is also available as an mdn content kit.
... note: the code for each webglbox example is available in this github repo and is organized by section.
... // performance note: creating a new array buffer for every draw call is slow.
...And 3 more matches

Writing WebSocket servers - Web APIs
note: read the latest official websockets specification, rfc 6455.
... note: regular http status codes can be used only before the handshake.
... note: this seemingly overcomplicated process exists so that it's obvious to the client whether the server supports websockets.
...And 3 more matches

Web Authentication API - Web APIs
please note: both create() and get() require a secure context (e.g.
...note most javascript programmers that are creating an application will only really care about steps 1 and 5 where the create() function is called and subsequently returns; however, steps 2, 3, and 4 are essential to understanding the processing that takes place in the browser and authenticator and what the resulting data means.
...note that it is absolutely critical that the challenge be a buffer of random information (at least 16 bytes) and it must be generated on the server in order to ensure the security of the registration process.
...And 3 more matches

Window.open() - Web APIs
note that remote urls won't load immediately.
... note on the use of window.open() to reopen an existing window with name windowname : this functionality is not valid for all browsers and more with variable conditions.
... tip: note that in some browsers, users can override the windowfeatures settings and enable (or prevent the disabling of) features position and size features windowfeatures parameter can specify the position and size of the new window.
...And 3 more matches

Using media queries - CSS: Cascading Style Sheets
note: the examples on this page use css's @media for illustrative purposes, but the basic syntax remains the same for all types of media queries.
... note: a style sheet with a media query attached to its <link> tag will still download even if the query returns false.
... name summary notes any-hover does any available input mechanism allow the user to hover over elements?
...And 3 more matches

max-width - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetmax-widthchrome full support 1edge full support 12firefox full support 1notes full support 1notes notes css 2.1 leaves the behavior of max-width with table undefined.
... firefox supports applying max-width to table elements.ie full support 7opera full support 4notes full support 4notes notes css 2.1 leaves the behavior of max-width with table undefined.
... opera supports applying max-width to table elements.safari full support 1webview android full support 4.4chrome android full support 18firefox android full support 4notes full support 4notes notes css 2.1 leaves the behavior of max-width with table undefined.
...And 3 more matches

HTML attribute: rel - HTML: Hypertext Markup Language
note: apple's ios does not use this link type, nor the sizes attribute, like others mobile browsers do, to select a webpage icon for web clip or a start-up placeholder.
... note: the obsolete rev="made" is treated as rel="alternate" bookmark relevant as the rel attribute value for the <a> and <area> elements, the bookmark provides a permalink for ancestor section, which is the nearest ancestor <article> or <section>, if there is at least one, otherwise, the nearest heading sibling or ancestor descendant, to the next..
... note: apple's ios does not use this link type, nor the sizes attribute, like others mobile browsers do, to select a webpage icon for web clip or a start-up placeholder.
...And 3 more matches

<audio>: The Embed Audio element - HTML: Hypertext Markup Language
note: sites that automatically play audio (or videos with an audio track) can be an unpleasant experience for users, so should be avoided when possible.
... usage notes: the autoplay attribute has precedence over preload.
... waiting playback has stopped because of a temporary lack of data usage notes browsers don't all support the same file types and audio codecs; you can provide multiple sources inside nested <source> elements, and the browser will then use the first one it understands: <audio controls> <source src="myaudio.mp3" type="audio/mpeg"> <source src="myaudio.ogg" type="audio/ogg"> <p>your browser doesn't support html5 audio.
...And 3 more matches

<input type="datetime-local"> - HTML: Hypertext Markup Language
you can set a default value for the input by including a date and time inside the value attribute, like so: <label for="party">enter a date and time for your party booking:</label> <input id="party" type="datetime-local" name="partydate" value="2017-06-01t08:30"> one thing to note is that the displayed date and time formats differ from the actual value; the displayed date and time are formatted according to the user's locale as reported by their operating system, whereas the date/time value is always formatted yyyy-mm-ddthh:mm.
... note: also bear in mind that if such data is submitted via http get, the colon character will need to be escaped for inclusion in the url parameters, e.g.
... note: when the data entered by the user doesn't adhere to the stepping configuration, the user agent may round to the nearest valid value, preferring numbers in the positive direction when there are two equally close options.
...And 3 more matches

<input type="tel"> - HTML: Hypertext Markup Language
note: browsers that don't support type tel fall back to being a standard text input.
... note: avoid using the placeholder attribute if you can.
... note: because a read-only field cannot have a value, required does not have any effect on inputs with the readonly attribute also specified.
...And 3 more matches

<input type="text"> - HTML: Hypertext Markup Language
note: avoid using the placeholder attribute if you can.
... note: because a read-only field cannot have a value, required does not have any effect on inputs with the readonly attribute also specified.
... note: this has been standardized as the global attribute enterkeyhint, but is not yet widely implemented.
...And 3 more matches

<u>: The Unarticulated Annotation (Underline) element - HTML: Hypertext Markup Language
see the usage notes section for further details on when it's appropriate to use <u> and when it isn't.
... usage notes along with other pure styling elements, the original html underline (<u>) element was deprecated in html 4; however, <u> was restored in html 5 with a new, semantic, meaning: to mark text as having some form of non-textual annotation applied.
... use cases valid use cases for the <u> element include annotating spelling errors, applying a proper name mark to denote proper names in chinese text, and other forms of annotation.
...And 3 more matches

HTTP Public Key Pinning (HPKP) - HTTP
note: public key pinning mechanism was deprecated in favor of certificate transparency and expect-ct header.
... note: the current specification requires including a second pin for a backup key which isn't yet used in production.
... this allows for changing the server's public key without breaking accessibility for clients that have already noted the pins.
...And 3 more matches

Expressions and operators - JavaScript
note that the return values are always based on the operands’ values before the operation.
... var1 <= var2 var2 <= 5 note: (=>) is not an operator, but the notation for arrow functions.
...these operators work as they do in most other programming languages when used with floating point numbers (in particular, note that division by zero produces infinity).
...And 3 more matches

Regular expression syntax cheatsheet - JavaScript
note that the m multiline flag doesn't change the dot behavior.
... note that some characters like :, -, @, etc.
...note that a matched word boundary is not included in the match.
...And 3 more matches

Function.prototype.apply() - JavaScript
note that this may not be the actual value seen by the method: if the method is a function in non-strict mode code, null and undefined will be replaced with the global object, and primitive values will be boxed.
... description note: while the syntax of this function is almost identical to that of call(), the fundamental difference is that call() accepts an argument list, while apply() accepts a single array of arguments.
... note: when the first argument is undefined or null a similar outcome can be achieved using the array spread syntax.
...And 3 more matches

WebAssembly.Instance - JavaScript
desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 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 8.0.0instance() 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 ...
...And 3 more matches

The building blocks of responsive design - Progressive web apps (PWAs)
note: you can find the snapshot app on github; check out the code and help improve it.
...note that getusermedia() is an experimental technology, which currently only works in google chrome and firefox desktop.
... the markup is very simple: <x-deck selected-index="0"> <x-card> … </x-card> <x-card> … </x-card> <x-card> … </x-card> </x-deck> note: these weird x- elements may be unfamiliar; they are part of brick, mozilla's ui element library for mobile web apps.
...And 3 more matches

Namespaces crash course - SVG: Scalable Vector Graphics
note that the namespace declaration only needs to be provided once on a root element.
... note that namespace names are just strings, so the fact that the svg namespace name also looks like a uri isn't important.
... note that it is an xml error to use a prefix that hasn't been bound to a namespace name.
...And 3 more matches

Subresource Integrity - Web security
note: for subresource-integrity verification of a resource served from an origin other than the document in which it’s embedded, browsers additionally check the resource using cross-origin resource sharing (cors), to ensure the origin serving the resource allows it to be shared with the requesting origin.
... note: an integrity value may contain multiple hashes separated by whitespace.
... note: an integrity value's "hash" part is, strictly speaking, a cryptographic digest formed by applying a particular hash function to some input (for example, a script or stylesheet file).
...And 3 more matches

Using templates and slots - Web Components
we'll call it <my-paragraph>: customelements.define('my-paragraph', class extends htmlelement { constructor() { super(); let template = document.getelementbyid('my-paragraph'); let templatecontent = template.content; const shadowroot = this.attachshadow({mode: 'open'}) .appendchild(templatecontent.clonenode(true)); } } ); the key point to note here is that we append a clone of the template content to the shadow root, created using the node.clonenode() method.
... so for example: <template id="my-paragraph"> <style> p { color: white; background-color: #666; padding: 5px; } </style> <p>my paragraph</p> </template> now we can use it by just adding it to our html document: <my-paragraph></my-paragraph> note: templates are well-supported in browsers; the shadow dom api is supported by default in firefox (version 63 onwards), chrome, opera, safari, and edge (starting with version 79).
...as before, this can be anything you like, for example: <my-paragraph> <span slot="my-text">let's have some different text!</span> </my-paragraph> or <my-paragraph> <ul slot="my-text"> <li>let's have some different text!</li> <li>in a list!</li> </ul> </my-paragraph> note: elements that can be inserted into slots are known as slotable; when an element has been inserted in a slot, it is said to be slotted.
...And 3 more matches

tabs - Archive of obsolete content
lose", logclose); } function logshow(tab) { console.log(tab.url + " is loaded"); } function logactivate(tab) { console.log(tab.url + " is activated"); } function logdeactivate(tab) { console.log(tab.url + " is deactivated"); } function logclose(tab) { console.log(tab.url + " is closed"); } tabs.on('open', onopen); manipulate a tab you can get and set various properties of tabs (but note that properties relating to the tab's content, such as the url, will not contain valid values until after the tab's ready event fires).
...ript to the page hosted in a tab, and use that to access and manipulate the page's content (see the modifying the page hosted by a tab tutorial): var tabs = require("sdk/tabs"); tabs.on('activate', function(tab) { var worker = tab.attach({ contentscript: 'self.port.emit("html", document.body.innerhtml);' }); worker.port.on("html", function(message) { console.log(message) }) }); note that tab.attach is tab-centric: if the user navigates to a new page in the same tab, then the worker and content scripts will be reattached to the new page.
... high-level tab var lowleveltab = viewfor(tab); // now we can, for example, access the tab's content directly var browser = tab_utils.getbrowserfortab(lowleveltab); console.log(browser.contentdocument.body.innerhtml); // get the high-level tab back from the xul tab var highleveltab = modelfor(lowleveltab); console.log(highleveltab.url); } tabs.on("ready", maphighleveltolowlevel); note that directly accessing xul objects and web content like this means you're no longer protected by the compatibility guarantees made by the sdk's high-level apis.
...And 2 more matches

JavaScript Debugger Service - Archive of obsolete content
note that onerror is called for every exception.
..._error) messagetype = "error"; if (flags & jsdierrorhook.report_warning) messagetype = "warning"; if (flags & jsdierrorhook.report_exception) messagetype = "uncaught-exception"; if (flags & jsdierrorhook.report_strict) messagetype += "-strict"; dump(messagetype + "\n"); return false; // trigger debughook // return true; if you do not wish to trigger debughook } }; // note that debughook does not _always_ trigger when jsd.errorhook[onerror] returns false // it is not well-known why debughook sometimes fails to trigger jsd.debughook = { onexecute: function(frame, type, rv) { stacktrace = ""; for (var f = frame; f; f = f.callingframe) { stacktrace += f.script.filename + "@" + f.line + "@" + f.functionname + "\n"; } dump(stacktrace); return components.i...
...note that the jsdifilter only applies to jsdiexecutionhooks, which are breakpointhook, debughook, debuggerhook, interrupthook and throwhook.
...And 2 more matches

Progress Listeners - Archive of obsolete content
note that if you just want to execute your code each time a page loads, you can use an an easier method, onpageload().
... note that onpageload does not fire for back button clicks.
...note that the browser uses a weak reference to your listener object, so make sure to keep an external reference to your object to ensure that it stays in memory.
...And 2 more matches

Java in Firefox Extensions - Archive of obsolete content
note: the global java object has been removed in gecko 16.0, so this page is out of date.
... note bug 834918 about click-to-play effect on java plugins in chrome and bug 775301.
...liveconnect gives your extension's javascript code (linked from or contained in xul code) access to 2 objects: java and packages (note that per this thread, although the new documentation for the liveconnect reimplementation states that these globals will be deprecated (in the context of applets), "firefox and the java plug-in will continue to support the global java/packages keywords, in particular in the context of firefox extensions.").
...And 2 more matches

How to Write and Land Nanojit Patches - Archive of obsolete content
(note: this document is called nanojitmerge for historical reasons -- adobe and mozilla used to have separate copies of nanojit, but this was a maintenance headache so they were merged.
...once it passes review, land it on nanojit-central, mark the bug's whiteboard as fixed-in-nanojit, and note the revision in a comment.
... (note that nanojit-central revision urls have the form http://hg.mozilla.org/projects/nanojit-central/<revid>, ie.
...And 2 more matches

Plugin Architecture - Archive of obsolete content
this page contains some notes on how plugins work internally in gecko.
...note: this document documents how trunk works, i.e.
...note: this document describes how things are, not necessarily how things should be.
...And 2 more matches

BundleLibrary - Archive of obsolete content
note: these bundles have not be tested with the latest version of prism and probably won't run.
...bundles gmail: gmail.webapp google calendar: gcalendar.webapp google docs: gdocs.webapp google groups: groups.webapp google analytics: ganalytics.webapp google reader: greader.webapp facebook: facebook.webapp twitter: twitter.webapp user contributed bundles gmail w/gtalk: gmail.webapp (note: work with latest version of prism!) 32 online todo lists: zip file with web apps for 32 online todo lists anywhere.fm: anywhere.fm@prism.app.webapp a service that lets you upload your entire music library to their servers and listen from anywhere through a slick flash interface.
... aol email : aolemail.webapp bbc radio player bbcradioplayer.webapp bloglines : bloglines.webapp bloglines beta: beta.bloglines.webapp chandler: chandler.webapp flash earth (integrates all major mapping sites) flashearth.webapp flickr: flickr.webapp gollum wikipedia browser in english:gollum_en.webapp google notebook: gnote.webapp google page creator: google_pagecreator.webapp google reader + gtalk : prism-bundle-google-reader-with-gtalk.webapp google webmaster tools: google_webmastertools.webapp grandcentral inbox: grandc.webapp (note: grandcentral requires the flash plugin.
...And 2 more matches

Supporting private browsing mode - Archive of obsolete content
note: private browsing mode may only be detected by chrome code, such as extensions; web content cannot detect whether or not private browsing is in effect.
...nexitprivatebrowsing(); } } } else if (atopic == "quit-application") { this._os.removeobserver(this, "quit-application"); this._os.removeobserver(this, "private-browsing"); } }, get inprivatebrowsing() { return this._inprivatebrowsing; }, get watcher() { return this._watcher; }, set watcher(val) { this._watcher = val; } }; of special note is the fact that this helper object is designed to not break on versions of firefox without private browsing support (those prior to firefox 3.5).
...ueryinterface(components.interfaces.nsisupportsprbool); // if another extension has not already canceled entering the private mode if (!asubject.data) { if (adata == "exit") { // if we are leaving the private mode /* you should display some user interface here */ asubject.data = true; // cancel the operation } } }, "private-browsing-cancel-vote", false); note: a well-mannered extension should display some sort of user interface to indicate that private browsing mode will be kept on, and possibly offer the option to cancel whatever operation is preventing the extension from allowing private browsing to be shut off.
...And 2 more matches

Anonymous Content - Archive of obsolete content
note that the inherits attribute is never cloned when content is generated from a template.
... note that children elements are never cloned when content is generated from a template.
... [editor's note: should there be an api for retrieving insertion points, for dynamically creating new insertion points, or for removing insertion points?
...And 2 more matches

execute - Archive of obsolete content
(note that this path points into the xpi itself.) args a parameter string that is passed to the executable.
...see note below.
...see note below.
...And 2 more matches

MenuItems - Archive of obsolete content
note that the image element is on a child level underneath the menu or menuitem, and it will have the class menu-iconic-icon.
... note that the checked state is updated before the command event fires, so if you use the menuitem's checked attribute within the command listener, it will already be in the new state.
...note that the code has been reversed in the condition blocks to hide the toolbar when the menuitem is checked and show the toolbar when the menuitem is not checked because the checked state hasn't been modified.
...And 2 more matches

Template Logging - Archive of obsolete content
however, note that the result is specified as being 'inactive'.
...note that this result is active and an indication is made in parantheses that there is no longer any active query.
...note that this error does not occur simply because, for example, a particular container has no children; it means that a logic error in the query implies that a variable could never be computed properly.
...And 2 more matches

Creating toolbar buttons (Customize Toolbar Window) - Archive of obsolete content
note: some people overlay chrome://messenger/content/mailwindowoverlay.xul.
...just add code like this to your overlay: <toolbarpalette id="browsertoolbarpalette"> <toolbarbutton id="myextension-button" class="toolbarbutton-1" label="&toolbarbutton.label;" tooltiptext="&toolbarbutton.tooltip;" oncommand="myextension.ontoolbarbuttoncommand(event);"/> </toolbarpalette> notes: the id of the palette (browsertoolbarpalette in the example) depends on the window (the parent window of the toolbar you wish to insert a button).
...to attach it to the overlay, put this processing instruction (pi) at the top of the overlay file: <?xml-stylesheet href="chrome://myextension/skin/toolbar-button.css" type="text/css"?> note: the css file with your toolbar styles needs to be included in the overlay file, as you would expect, but also in the chrome.manifest file.
...And 2 more matches

SeaMonkey - making custom toolbar (SM ver. 1.x) - Archive of obsolete content
note that this extension is very simplified.
... note: for a similar tutorial that applies to seamonkey 2, firefox, thunderbird and sunbird, see: custom toolbar button earlier versions and other mozilla applications also support extensions, but some parts of this tutorial are not appropriate for them.
... note: for information about how to find the directory where you installed seamonkey, see: installation directory if you cannot easily find the directory, you can use the following method to find it.
...And 2 more matches

Document Object Model - Archive of obsolete content
the various dom objects have functions which may be accessed in script, however, it is important to note that the dom is an api that is accessible by javascript.
...note that we qualified the property with the 'window' identifier just to be clearer.
...it is important to note, however, that the open() method returns before the window has fully loaded, so functions will not typically be available yet.
...And 2 more matches

Tree Box Objects - Archive of obsolete content
note that redrawing does not occur until the calling script ends since mozilla does not redraw in the background.
... note: it is not necessary to run tree.boxobject.queryinterface(components.interfaces.nsitreeboxobject) as shown in the code examples on this page because: let boxobject = tree.treeboxobject; note: is equivalent to: let boxobject = tree.boxobject; boxobject.queryinterface("components.interfaces.nsitreeboxobject"); scrolling the tree you can also scroll the tree using four different methods, similar to those available for listboxes.
...eeitem label="row 2"/> <treeitem label="row 3"/> <treeitem label="row 4"/> <treeitem label="row 5"/> <treeitem label="row 6"/> <treeitem label="row 7"/> <treeitem label="row 8"/> <treeitem label="row 9"/> </treechildren> </tree> <hbox align="center"> <label value="scroll to row:"/> <textbox id="tbox"/> <button label="scroll" oncommand="doscroll();"/> </hbox> note that we use the rows attribute on the tree to specify that only four rows are displayed at a time.
...And 2 more matches

Tree View Details - Archive of obsolete content
note that the tree will call neither iscontainerempty nor iscontaineropen for rows that are not containers as indicated by the return value of the iscontainer method.
... note: as of this writing (gecko 2.0), custom nsitreeview implementations must be prepared to handle a call to toggleopenstate for any row index which returns true for a call to iscontainer, regardless of whether the container is empty.
...note that it should return the current number of visible rows, not the total.
...And 2 more matches

window - Archive of obsolete content
note: starting in gecko 1.9.2, you can detect when a window is activated or deactivated by watching for the "activate" and "deactivate" events.
...note: this has no effect if the tabs on top preference is turned off.
... note: when a window is minimized, the sizemode attribute is not updated.
...And 2 more matches

MacFAQ - Archive of obsolete content
(note this document has not been reviewed for accuracy or completeness.) special build notes enable libxul.
...note that in order to copy the framework while keeping the relative soft-links in the framework, do something like: % ( cd dist ; gnutar cf - xul.framework | ( cd /library/frameworks ; gnutar xf - )) installing your application your application must be installed as a xulrunner app before you can open it.
... to do this, type: xulrunner-bin --install-app /path/to/appdir note the path to your application must end with the directory containing application.ini; you should not reference application.ini in this command.
...And 2 more matches

calICalendarView - Archive of obsolete content
it should be noted, however, that the methods and attributes implemented by a calicalendarview need not behave in any predictable fashion.
...note that in most cases, this attribute will be set by the consumers of calicalendarview very early in an application/extension's loading process.
...implementations should therefore be wary to check whether a controller has been assigned to the view, before calling any of the methods it implements.note that in most cases, this attribute will be set by the consumers of calicalendarview very early in an application/extension's loading process.
...And 2 more matches

The First Install Problem - Archive of obsolete content
note that myapplication consists of one dll (which is an npapi plugin handling a given mimetype -- say application/x-myapp) and one xpt file, for scriptable interfaces.
...(note that the file name must still begin with "np", just as it must when the file is loaded from the .\plugins directory.) example: [hkey_local_machine\software\mozillaplugins\@mycompany.com/myapplication,version=5.01] path=c:\mycompany\myapplication\netscape\npmyapp.dll "xptpath" -- string value -- absolute path to xpt module required for scripting plug-in, if applicable ...
...note that this means that at a minimum, the plugin vendor is ensuring compatibility with 0.9.4.2 browsers.
...And 2 more matches

Advanced styling effects - Learn web development
note: there is another item that can be set in the box-shadow value — another length value can be optionally set just before the color value, which is a spread radius.
... note: blend modes are also very new, and slightly less well supported than filters.
... note: don't worry if you don't understand some of the layout properties above, like position, top, bottom, z-index, etc.
...And 2 more matches

What is CSS? - Learn web development
note: a browser is sometimes called a user agent, which basically means a computer program that represents a person inside a computer system.
... note: you can find links to all the css property pages (along with other css features) listed on the mdn css reference.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetfont-familychrome full support 1edge full support 12firefox full support 1notes full support 1notes notes not supported on option elements.
...And 2 more matches

CSS FAQ - Learn web development
note: see selectors for more information.
...(see eric meyer's note about the working group's stance).
...for example: -ms-transform: rotate(90deg); -webkit-transform: rotate(90deg); transform: rotate(90deg); note: for more information on dealing with prefixed properties, see handling common html and css problems — handling css prefixes from our cross-browser testing module.
...And 2 more matches

Web fonts - Learn web development
note: web fonts as a technology have been supported in internet explorer since version 4!
... note: under the "find fonts" section in the right-hand column, you can click on the different tags and classifications to filter the displayed choices.
... note: if you have any problems getting this to work, feel free to compare your version to our finished files — see web-font-finished.html and web-font-finished.css (run the finished example live).
...And 2 more matches

Advanced form styling - Learn web development
input { -webkit-appearance: none; appearance: none; } note: it is a good idea to always include both declarations — prefixed and unprefixed — when using a prefixed property.
... note: you may have noticed that in the search field, the "x" delete icon disappears when the input loses focus in edge and chrome, but stays put in safari.
... note: while internet explorer doesn't support any version of appearance, the input[type=checkbox]::-ms-check enables the targeting of checkboxes in ie only.
...And 2 more matches

A first splash into JavaScript - Learn web development
note: many of the code features you'll see in javascript are the same as in other programming languages — functions, loops, etc.
... the first three constants are each made to store a reference to the results paragraphs in our html, and are used to insert values into the paragraphs later on in the code (note how they are inside a <div> element, which is itself used to select all three later on for resetting, when we restart the game): <div class="resultparas"> <p class="guesses"></p> <p class="lastresult"></p> <p class="loworhi"></p> </div> the next two constants store references to the form text input and submit button and are used to control submitting the guess later on.
... note: you'll learn a lot more about variables/constants later on in the course, starting with the next article.
...And 2 more matches

Arrays - Learn web development
try this: shopping[0] = 'tahini'; shopping; // shopping will now return [ "tahini", "milk", "cheese", "hummus", "noodles" ] note: we've said it before, but just as a reminder — computers start counting from 0!
... note that an array inside an array is called a multidimensional array.
... note: okay, this is technically a string method, not an array method, but we've put it in with arrays as it goes well here.
...And 2 more matches

Storing the information you need — Variables - Learn web development
note: we say variables contain values.
... note: in javascript, all code instructions should end with a semi-colon (;) — your code may work correctly for single lines, but probably won't when you are writing multiple lines of code together.
...if they don't exist, you'll get an error message — try typing in scoobydoo; note: don't confuse a variable that exists but has no defined value with a variable that doesn't exist at all — they are very different things.
...And 2 more matches

Componentizing our Svelte app - Learn web development
note: in the process of creating our first couple of components, we will also learn different techniques to communicate between components, and the pros and cons of each.
...first of all, we need to import it — add the following line at the top of the todos.svelte <script> section: import filterbutton from './filterbutton.svelte' now, replace the filters <div> with a call to the filterbutton component, which takes the current filter as a prop — the below line is all you need: <filterbutton {filter} /> note: remember that when the html attribute name and variable matches, they can be replaced with {variable}, that's why we could replace <filterbutton filter={filter} /> with <filterbutton {filter} />.
... note: custom events in svelte share the same api as regular dom events.
...And 2 more matches

Deployment and next steps - Learn web development
note that our application is fully functional and porting it to typescript is completely optional.
... note: there is also an official template for using webpack and also many community-maintained plugins for other bundlers.
... note: the following section could be applied to any client-side static web site requiring a build step, not just svelte apps.
...And 2 more matches

Understanding client-side JavaScript frameworks - Learn web development
react tutorials note: react tutorials last tested in may 2020, with react/reactdom 16.13.1 and create-react-app 3.4.1.
... ember tutorials note: ember tutorials last tested in may 2020, with ember/ember cli version 3.18.0.
... vue tutorials note: vue tutorials last tested in may 2020, with vue 2.6.11.
...And 2 more matches

Simple Thunderbird build
note that the downloaded outlook 2010 mapi header files contain 18 fies, of which only 17 are needed.
... 2,743 mapioid.h 02/06/2009 17:02 32,978 mapispi.h 02/06/2009 17:02 54,395 mapitags.h 02/06/2009 17:02 26,467 mapiutil.h 02/06/2009 17:02 97,301 mapival.h 02/06/2009 17:02 9,334 mapiwin.h 02/06/2009 17:02 1,906 mapiwz.h 02/06/2009 17:02 18,277 mapix.h 02/06/2009 17:02 5,012 mspst.h get the source note: on windows, you won't be able to build the thunderbird source code if it's under a directory with spaces in the path (e.g., don't use "documents and settings").
... note: parts of the build process also have problems when the source code is in a directory where the path is long (nested many levels deep).
...And 2 more matches

Using the Browser API
note: an iframe enhanced by the browser api is commonly referred to as a "browser iframe".
... note that promise versions of browser api dom request methods also exist, so you can use async promise style syntax if you so wish.
...when you tap the url bar, you can enter a url using the built-in firefox os keyboard (although note that we haven't implemented anything sophisticated in this app, like autofilling the http://, etc.).
...And 2 more matches

FileUtils.jsm
note: if you want to use the full path to get to the directory you cannot use getdir.
... note: 'safe' and 'atomic' file output streams will never append; they will always overwrite an existing file.
... note: openatomicfileoutputstream() is generally better than opensafefileoutputstream() because flushing is not needed in most of the issues.
...And 2 more matches

Bootstrapping a new locale
you can choose to use: notepad++ or notepad2 on windows, vim, gedit or kate on gnu/linux, textwrangler on mac os x.
... (read more about tools at l10n:tools.) after you have downloaded your editor of choice, type the following command in the same path from above (~/ab-cd/browser/chrome/browser) $ edit ab-cd/browser/chrome/browser/aboutcerterror.dtd read the top of the file to get any context on how to translate contained in the notes written by the developers or l10n-drivers.
... localization notes will look like this: <!-- localization notes...
...And 2 more matches

Localizing without a specialized tool
going one-by-one with your compare-locales output open for review, we will start with the first file with "// add and localize this file" note.
...you can choose to use: notepad++ or notepad2 on windows, vim, gedit or kate on gnu/linux, textwrangler on mac os x.
... (read more about tools at l10n:tools.) after you have downloaded your editor of choice, type the following command in the same path from above (l10n-mozilla-1.9.2/x-testing/browser/chrome/browser) $ edit l10n-mozilla-1.9.2/x-testing/browser/chrome/browser/aboutcerterror.dtd read the top of the file to get any context on how to translate contained in the notes written by the developers or l10n-drivers.
...And 2 more matches

SVN for Localizers
note: if you do not already have access to svn, visit this wiki page on how to get set up with an svn account before proceeding.
... note: we use the terms stage and prod (abbreviations of the terms staging and production) to refer to testing and publicly visible websites, respectively.
... note: the directory you create will be located inside the directory that you're currently in with your console (or cygwin console).
...And 2 more matches

Creating localizable web applications
note: most of the code snippets used in the examples below come from an early version of the getpersonas.com website.
... note that some strings might be hidden in libraries' code (e.g.
...good: // %1$s is the persona's name, %2$s is the athor's username printf(_('%1$s by %2$s'), $persona['name'], $persona['display_username']); note the single quotes around '%1$s by %2$s'.
...And 2 more matches

NSS API Guidelines
note: it's not necessary all eight files exist.
... threadmark code notes the thread id, whenever an arena is marked, and disallows any allocations or marks by any other thread.
... note: error stacks are vertical, and never horizontal.
...And 2 more matches

SpiderMonkey 24
these release notes are an incomplete draft and were initially seeded from the spidermonkey 17 release notes, so they're not necessarily complete or fully accurate.
... (this change was motivated by garbage collector improvements, which lean quite heavily on c++'s support for raii through constructors and destructors.) if you are compiling with microsoft's visual studio, note that the minimum supported version is msvc10/2010: msvc8/9 support has been dropped.
... please note that spidermonkey reserves the js:: namespace for itself (and the js:: namespace for internal use).
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SpiderMonkey 31
these release notes are incomplete.
... if you are compiling with microsoft's visual studio, note that the minimum supported version is msvc10/2010: msvc8/9 support has been dropped.
...please note that spidermonkey reserves the js:: namespace for itself (and the js:: namespace for internal use).
...And 2 more matches

SpiderMonkey 38
these release notes are incomplete.
... if you are compiling with microsoft's visual studio, note that the minimum supported version is msvc10/2010.
...please note that spidermonkey reserves the js:: namespace for itself (and the js:: namespace for internal use).
...And 2 more matches

Handling Mozilla Security Bugs
note that the focus of this new structure is restricted solely to addressing actual security vulnerabilities arising from problems in mozilla code.
... as noted above, information about security bugs can be held confidential for some period of time; there is no pre-determined lmit on how long that time period might be.
...(as described previously, once added to the security bug group, that person would then have automatic access to all bugs marked security-sensitive, without having to be explicitly added to the cc list for each one.) note that, although we intend to make it relatively simple for a new person to join the security bug group, and we are not limiting the size of the group to any arbitrary number, we do not want the group to expand without any limits whatsoever.
...And 2 more matches

Places utilities for JavaScript
note these variants also do not return the dialog "performed" state since they may not open the dialog modally.
... note: the location, description and "load in sidebar" fields are visible only if there is no initial uri (auri is null).
... note: when adefaultinsertionpoint is not set, the dialog defaults to the bookmarks root folder.
...And 2 more matches

Starting WebLock
also note that the nsicomponentmanager is passed into the callback.
... declaration macros the class declaration for the weblock class that implements these three interfaces is as follows: class weblock: public nsiobserver, public iweblock { public: weblock(); virtual ~weblock(); ns_decl_isupports ns_decl_nsiobserver ns_decl_iweblock }; note that we derive from the nsiobserver interface as well as the iweblock class.
...if you really want to change the return result type you can use a special flag in your xpidl that denotes this (see the xpidl reference).
...And 2 more matches

mozIPersonalDictionary
note that this method is not currently implemented.
...note that this parameter is currently unused.
...note that this parameter is currently ignored.
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nsIAppShellService
orsplashscreen); obsolete since gecko 1.8 void quit(in pruint32 aferocity); obsolete since gecko 1.8 void registertoplevelwindow(in nsixulwindow awindow); void run(); obsolete since gecko 1.8 void toplevelwindowismodal(in nsixulwindow awindow, in boolean amodal); obsolete since gecko 1.9.1 void unregistertoplevelwindow(in nsixulwindow awindow); note: prior to gecko 8.0, all references to nsidomwindow used in this interface were nsidomwindowinternal.
... note: size_to_content may be used for width or height.
...e10s notes: the browser is created in process.
...And 2 more matches

nsIContentPrefService
note: prior to gecko 2.0, the site could only be specified by nsiuri.
... note: prior to gecko 2.0, the site could only be specified by nsiuri.
... note: prior to gecko 2.0, the site could only be specified by nsiuri.
...And 2 more matches

nsICrashReporter
1.0 66 introduced gecko 1.9 inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview void annotatecrashreport(in acstring key, in acstring data); void appendappnotestocrashreport(in acstring data); void appendobjcexceptioninfotoappnotes(in voidptr aexception); native code only!
... appendappnotestocrashreport() append some data to the "notes" field, to be submitted with a crash report.
...void appendappnotestocrashreport( in acstring data ); parameters data data to be added.
...And 2 more matches

nsIDOMWindow
note: prior to gecko 7.0 this attribute was part of nsidomwindow2.
...note: prior to gecko 8.0 this attribute was part of nsidomstoragewindow.
... note: prior to gecko 8.0 this attribute was part of nsidomstoragewindow.
...And 2 more matches

nsIHttpChannel
note: an http redirect results in a new channel being created.
... note: the channel may silently refuse to set the referer: header if the uri does not pass certain security checks (e.g., a "https://" url will never be sent as the referrer for a plaintext http request).
... note: the data for a "post" or "put" request can be configured via nsiuploadchannel.
...And 2 more matches

nsIInputStream
note: blocking input streams are often read on a background thread to avoid locking up the main application thread.
... note: some nsiinputstream implementations automatically close() when end-of-file is reached; others do not.
... note: this method should not be used to determine the total size of a stream, even if the stream corresponds to a local file.
...And 2 more matches

nsIRequest
note: these flags are intended for normal browsing, and they should therefore not apply to content that must be validated before each use.
... note: this will prevent proxy authentications from working, so use this flag with caution.
... note: most nsirequest implementations expect astatus to be a failure code; however, some implementations may allow astatus to be a success code such as ns_ok.
...And 2 more matches

nsIScriptableInputStream
note: this method should not be used to determine the total size of a stream, even if the stream corresponds to a local file.
...note: the close method may be called more than once, but subsequent calls are ignored.
...note: the init method may be called more than once, allowing a nsiscriptableinputstream instance to be reused.
...And 2 more matches

nsIXPConnect
pports acomobj, in nsiidref aiid, in nsiprincipal aprincipal, in nsisupports aextraptr, in pruint32 aflags); nsivariant jstovariant(in jscontextptr ctx, in jsval value); nsivariant jsvaltovariant(in jscontextptr cx, in jsvalptr ajsval); void movewrappers(in jscontextptr ajscontext, in jsobjectptr aoldscope, in jsobjectptr anewscope); [noscript,notxpcom] void notejscontext(in jscontextptr ajscontext, in nscctraversalcallbackref acb); void releasejscontext(in jscontextptr ajscontext, in prbool nogc); void removejsholder(in voidptr aholder); native code only!
... note: in c++, the out jsval parameter must already be a strong gc root.
...n return value missing description exceptions thrown missing exception missing description movewrappers() void movewrappers( in jscontextptr ajscontext, in jsobjectptr aoldscope, in jsobjectptr anewscope ); parameters ajscontext missing description aoldscope missing description anewscope missing description exceptions thrown missing exception missing description notejscontext() note: ajscontext as a child to the cycle collector.
...And 2 more matches

Setting HTTP request headers
note: if you are making up your own http header, you must put a x- in front of the name.
...(and yes, "http-on-modify-request" is a string.) note: there are many topics, besides just "http-on-modify-request", that you can get notifications about, for example "http-on-examine-response" and "xpcom-shutdown".
...hat adds a custom header "x-hello" to the channel passed in for http-on-modify-request notification: var {cc, ci} = require("chrome"); var httprequestobserver = { observe: function(subject, topic, data) { if (topic == "http-on-modify-request") { var httpchannel = subject.queryinterface(ci.nsihttpchannel); httpchannel.setrequestheader("x-hello", "world", false); } } }; note: the above code was changed to reflect that in a firefox add-on one can not directly access components.interfaces und components.classes anymore but must use the require line introduced to the sample code above.
...And 2 more matches

Mail composition back end
(note: this method could easily be broken in to a few different calls.
... const struct nsmsgattachedfile *preloaded_attachments, - attachments that are already locally stored on disk (note: both attachments and preloaded_attachments cannot be specified on a single call void *relatedpart /* nsmsgsendpart */, - a related part for multipart related operations nsimsgsendlistener **alistenerarray) = 0; - an array of listeners for the send operation.
... this can be nsnull if you want to do the delivery operation "blind" sendmessagefile the sendmessagefile method will let the caller send a message that has been created by another process (note: createandsendmessage can accomplish this task).
...And 2 more matches

Using the Mozilla symbol server
note that because mozilla release builds are heavily optimized, debugging is not always easy.
...to use only the mozilla symbol server, add the following entry to your symbol path (note: you can replace c:\symcache\ with any writable directory on your computer, if you'd prefer a different location for downloaded symbols): srv*c:\symcache\*https://symbols.mozilla.org/ set this string as _nt_symbol_path in the environment, using the windbg menus, or by typing the .sympath command.
... if you would like to get symbols from microsoft's symbol server as well, you should list that first (note: you can replace c:\symcache\ with any writable directory on your computer, if you'd prefer a different location for downloaded symbols): srv*c:\symcache\*https://msdl.microsoft.com/download/symbols;srv*c:\symcache\*https://symbols.mozilla.org/ downloading symbols using symchk.exe you can also download the symbols using symchk.exe, part of microsoft's debugging tools for windows.
...And 2 more matches

Using js-ctypes
note: js-ctypes only works with c libraries; you can't use c++ methods directly.
... note: this information comes from this article on msdn.
... note: this example will not work on 64bit os x, see below for core foundation for 64bit os x /* build a str255 ("pascal style") string from the passed-in string */ function makestr(str) { return string.fromcharcode(str.length) + str; } components.utils.import("resource://gre/modules/ctypes.jsm"); var carbon = ctypes.open("/system/library/frameworks/carbon.framework/carbon"); stdalert = carbon.d...
...And 2 more matches

Introduction to DOM Inspector - Firefox Developer Tools
note: starting with firefox 3, the dom inspector is not included in firefox by default; instead, you must download and install it from the mozilla add-ons web site.
... (note: this is now a dead link.) when you first start the dom inspector, you are presented with a two-pane application window that looks a little like the main mozilla browser.
... dom inspector viewers note that these viewers are just two viewers that the dom inspector provides.
...And 2 more matches

Debugger.Object - Firefox Developer Tools
for example: function f() {} // display name: f (the given name) var g = function () {}; // display name: g o.p = function () {}; // display name: o.p var q = { r: function () {} // display name: q.r }; note that the display name may not be a proper javascript identifier, or even a proper expression: we attempt to find helpful names even when the function is not immediately assigned as the value of some variable or property.
... note that the array only contains the promises that directly depend on the referent promise.
... note that this returns primitive values unchanged.
...And 2 more matches

Settings - Firefox Developer Tools
note that in firefox 52 we removed the checkbox to toggle the "select element" button.
...note that this setting is independent of the "browser styles" checkbox in the inspector's computed view.
...note that service workers are not affected by this option.
...And 2 more matches

about:debugging (before Firefox 68) - Firefox Developer Tools
this page enables you to do two things: load an add-on temporarily from disk connect the add-on debugger to any restartless add-ons connecting the add-on debugger the add-ons page in about:debugging lists all restartless add-ons that are currently installed (note that this list may include add-ons that came preinstalled with your firefox).
...note that sometimes the debugger window is hidden by the main firefox window.
... note that before firefox 48, loading the add-on again by pressing "load temporary add-on" without restarting firefox does not work.
...And 2 more matches

Attr - Web APIs
note: dom level 4 removed this property.
... gecko outputs a deprecation note starting from gecko 7.0 (firefox 7.0 / thunderbird 7.0 / seamonkey 2.4).
... this note was removed again in gecko 49.0 (firefox 49.0 / thunderbird 49.0 / seamonkey 2.46).
...And 2 more matches

console - Web APIs
note: this feature is available in web workers.
... note: the actual console interface is defined as all lower case (i.e.
...formatting is supported, for example console.log("foo %.2f", 1.1) will output the number to 2 decimal places: foo 1.10 note: precision formatting doesn't work in chrome each of these pulls the next argument after the format string off the parameter list.
...And 2 more matches

Document.getElementsByTagNameNS() - Web APIs
syntax elements = document.getelementsbytagnamens(namespace, name) elements is a live nodelist (but see the note below) of found elements in the order they appear in the tree.
... note: while the w3c specification says elements is a nodelist, this method returns a htmlcollection both in gecko and internet explorer.
... note: currently parameters in this method are case-sensitive, but they were case-insensitive in firefox 3.5 and before.
...And 2 more matches

Document.querySelectorAll() - Web APIs
note: this method is implemented based on the parentnode mixin's queryselectorall() method.
... note: characters which are not part of standard css syntax must be escaped using a backslash character.
... note: if the specified selectors include a css pseudo-element, the returned list is always empty.
...And 2 more matches

Traversing an HTML table with JavaScript and DOM Interfaces - Web APIs
extnode("cell in row "+i+", column "+j); cell.appendchild(celltext); row.appendchild(cell); } // add the row to the end of the table body tblbody.appendchild(row); } // put the <tbody> in the <table> tbl.appendchild(tblbody); // appends <table> into <body> body.appendchild(tbl); // sets the border attribute of tbl to 2; tbl.setattribute("border", "2"); } note the order in which we created the elements and the text node: first we created the <table> element.
... myp.appendchild(mytextnode); after testing this sample, note that the words hello and world are together: helloworld.
...another important note is that the appendchild method will append the child after the last child, just like the word world has been added after the word hello.
...And 2 more matches

Using Fetch - Web APIs
to extract the json body content from the response, we use the json() method (defined on the body mixin, which is implemented by both the request and response objects.) note: the body mixin also has similar methods to extract other types of body content; see the body section for more.
...s-origin, same-origin, strict-origin, strict-origin-when-cross-origin, unsafe-url body: json.stringify(data) // body data type must match "content-type" header }); return response.json(); // parses json response into native javascript objects } postdata('https://example.com/answer', { answer: 42 }) .then(data => { console.log(data); // json data parsed by `data.json()` call }); note that mode: "no-cors" only allows a limited set of headers in the request: accept accept-language content-language content-type with a value of application/x-www-form-urlencoded, multipart/form-data, or text/plain sending a request with credentials included to cause browsers to send a request with credentials included, even for a cross-origin call, add credentials: 'include' to the init o...
... note: there is also a clone() method that creates a copy.
...And 2 more matches

Using the Gamepad API - Web APIs
var gamepads = {}; function gamepadhandler(event, connecting) { var gamepad = event.gamepad; // note: // gamepad === navigator.getgamepads()[gamepad.index] if (connecting) { gamepads[gamepad.index] = gamepad; } else { delete gamepads[gamepad.index]; } } window.addeventlistener("gamepadconnected", function(e) { gamepadhandler(e, true); }, false); window.addeventlistener("gamepaddisconnected", function(e) { gamepadhandler(e, false); }, false); this previous example also demonst...
...note that disconnecting a device and then connecting a new device may reuse the previous index.
...note that this property is not currently supported in firefox.
...And 2 more matches

Recommended Drag Types - Web APIs
note: in older code, you may find text/unicode or the text types.
... note: the url type is uri-list with an i, not an l.
...note that the instanceof operator is used here as the mozgetdataat() method will return an nsisupports that needs to be checked and converted into an nsifile.
...And 2 more matches

databases - Web APIs
note: this feature is available in web workers.
... note: this method is introduced in a draft of a specifications and browser compatibility is limited.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetdatabases experimentalchrome full support 71edge full support 79firefox no support nonotes no support nonotes notes see bug 934640.ie no support noopera full support 58safari no support nowebview android full support 71chrome android full support ...
...And 2 more matches

IDBObjectStore.add() - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
... for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBObjectStore.autoIncrement - Web APIs
note that every object store has its own separate auto increment counter.
... note: this feature is available in web workers.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBObjectStore.deleteIndex() - Web APIs
note that this method must be called only from a versionchange transaction mode callback.
... note that this method synchronously modifies the idbobjectstore.indexnames property.
... note: this feature is available in web workers.
...And 2 more matches

IDBObjectStore.get() - Web APIs
note: this method produces the same result for: a) a record that doesn't exist in the database and b) a record that has an undefined value.
... note: this feature is available in web workers.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBObjectStore - Web APIs
note: this feature is available in web workers.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in db.
... db = dbopenrequest.result; }; // this event handles the event whereby a new version of // the database needs to be created either one has not // been created before, or a new version number has been // submitted via the window.indexeddb.open line above dbopenrequest.onupgradeneeded = function(event) { var db = event.target.result; db.onerror = function(event) { note.innerhtml += '<li>error loading database.</li>'; }; // create an objectstore for this database var objectstore = db.createobjectstore("todolist", { keypath: "tasktitle" }); // define what data items the objectstore will contain objectstore.createindex("hours", "hours", { unique: false }); objectstore.createindex("minutes", "minutes", { unique: false }); objectstore.createindex("day", "day", { unique: ...
...And 2 more matches

IDBTransaction.abort() - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBTransaction.db - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBTransaction.mode - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
...for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

IDBTransaction.objectStore() - Web APIs
note: this feature is available in web workers.
...note also the functions attached to transaction event handlers to report on the outcome of the transaction opening in the event of success or failure.
... for a full working example, see our to-do notifications app (view example live.) // let us open our database var dbopenrequest = window.indexeddb.open("todolist", 4); dbopenrequest.onsuccess = function(event) { note.innerhtml += '<li>database initialised.</li>'; // store the result of opening the database in the db variable.
...And 2 more matches

Basic concepts - Web APIs
indexeddb is useful for applications that store a large amount of data (for example, a catalog of dvds in a lending library) and applications that don't need persistent internet connectivity to work (for example, mail clients, to-do lists, and notepads).
... note: third party window content (e.g.
... note: in firefox, if you wish to ensure durability for some reason (e.g.
...And 2 more matches

Key Values - Web APIs
note: this shouldn't be confused with the "mediapause" key value, which is used for media controllers, rather than to control applications and processes.
... note: this shouldn't be confused with the "mediaplay" key value, which is used for media controllers, rather than to control applications and processes.
... note: not all systems pass this key through to to the user agent.
...And 2 more matches

KeyboardEvent.location - Web APIs
note: when numlock is locked, gecko always returns dom_key_location_numpad for the keys on the numeric pad.
...on the other hand, if the keyboard doesn't have a keypad, such as on a notebook computer, some keys become numpad only when numlock is locked.
... note: numlock key's key events indicate dom_key_location_standard both on gecko and internet explorer.
...And 2 more matches

KeyboardEvent - Web APIs
note: keyboardevent events just indicate what interaction the user had with a key on the keyboard at a low level, providing no contextual meaning to that interaction.
... note: this does not describe the locale of the data being entered.
... note: if the key is used as a macro that inserts multiple characters, this attribute's value is the entire string, not just the first character.
...And 2 more matches

Using the Notifications API - Web APIs
note: this feature is available in web workers.
... note: before version 37, chrome doesn't let you call notification.requestpermission() in the load event handler (see issue 274284).
... n.close(); } }); note: this api shouldn't be used just to have the notification removed from the screen after a fixed delay (on modern browsers) since this method will also remove the notification from any notification tray, preventing users from interacting with it after it was initially shown.
...And 2 more matches

ParentNode.querySelectorAll() - Web APIs
note: this method is implemented as element.queryselectorall(), document.queryselectorall(), and documentfragment.queryselectorall() syntax elementlist = parentnode.queryselectorall(selectors); parameters selectors a domstring containing one or more selectors to match against.
... note: characters which are not part of standard css syntax must be escaped using a backslash character.
... note: if the specified selectors include a css pseudo-element, the returned list is always empty.
...And 2 more matches

Selection API - Web APIs
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetselection experimentalchrome full support 1edge full support 12firefox full support 1notes full support 1notes notes the globaleventhandlers.onselectionchange and globaleventhandlers.onselectstart event handlers are supported as of firefox 52.ie full support 9opera full support 9safari full support 1webview...
... android full support 1chrome android full support 18firefox android full support 4notes full support 4notes notes the globaleventhandlers.onselectionchange and globaleventhandlers.onselectstart event handlers are supported as of firefox 52.opera android full support 10.1safari ios full support 1samsung internet android full support 1.0addrange experimentalchrome full support 1edge full support ...
... yessafari ios full support yessamsung internet android full support yescontainsnode experimentalchrome full support yesedge full support 12firefox full support 4notes full support 4notes notes before firefox 35, the method didn't throw if node was null.ie no support noopera full support yessafari full support yeswebview android full support ...
...And 2 more matches

Using readable streams - Web APIs
note: this article assumes that you understand the use cases of readable streams, and are aware of the high-level concepts.
... note: if you are looking for information on writable streams try using writable streams instead.
... also note that the previous example can be reduced by one step, as response.body is synchronous and so doesn't need the promise: // fetch the original image fetch('./tortoise.png') // retrieve its body as readablestream .then(response => { const reader = response.body.getreader(); reading the stream now you’ve got your reader attached, you can read data chunks out of the stream using the rea...
...And 2 more matches

URLUtilsReadOnly - Web APIs
me for androidfirefox for androidopera for androidsafari on iossamsung interneturlutilsreadonlychrome no support noedge no support nofirefox full support 57 full support 57 no support 3.5 — 57notes notes firefox has a bug whereby single quotes contained in urls are escaped when accessed via url apis (see bug 1386683).ie no support noopera no support nosafari no support nowebview android no support nochrome androi...
...d no support nofirefox android full support 57 full support 57 no support 4 — 57notes notes firefox has a bug whereby single quotes contained in urls are escaped when accessed via url apis (see bug 1386683).opera android no support nosafari ios no support nosamsung internet android no support nohash experimentalchrome no support noedge no support nofirefox full support ...
... 38 full support 38 no support 3.5 — 38notes notes before firefox 38, firefox returned the hash percent encoded.
...And 2 more matches

Using textures in WebGL - Web APIs
note: it's important to note that the loading of textures follows cross-domain rules; that is, you can only load textures from sites for which your content has cors approval.
...note that the texture coordinates range from 0.0 to 1.0; the dimensions of textures are normalized to a range of 0.0 to 1.0 regardless of their actual size, for the purpose of texture mapping.
... note: cors support for webgl textures and the crossorigin attribute for image elements is implemented in gecko 8.0.
...And 2 more matches

Using DTMF with WebRTC - Web APIs
note, however, that although it's possible to send dtmf using webrtc, there is currently no way to detect or receive incoming dtmf.
... webrtc currently ignores these payloads; this is because webrtc's dtmf support is primarily intended for use with legacy telephone services that rely on dtmf tones to perform tasks such as: teleconferencing systems menu systems voicemail systems entry of credit card or other payment information passcode entry note: while the dtmf is not sent to the remote peer as audio, browsers may choose to play the corresponding tone to the local user as part of their user experience, since users are typically used to hearing their phone play the tones audibly.
... note: this example is obviously somewhat contrived, since normally the two rtcpeerconnection objects would exist on different devices, and signaling would be done over the network instead of it all being simply linked up inline as it is here.
...And 2 more matches

Basic concepts behind Web Audio API - Web APIs
note: to get a time in seconds from a frame count, simply divide the number of frames by the sample rate.
... here's a couple of simple examples: var context = new audiocontext(); var buffer = context.createbuffer(2, 22050, 44100); note: in digital audio, 44,100 hz (alternately represented as 44.1 khz) is a common sampling frequency.
... note: audio resampling is very similar to image resizing.
...And 2 more matches

Web audio spatialization basics - Web APIs
note: there's also a stereopannernode designed to deal with the common use case of creating simple left and right stereo panning effects.
... note: the experience is much better if you use headphones, or have some kind of surround sound system to plug your computer into.
... const positionx = posx; const positiony = posy; const positionz = posz; const orientationx = 0.0; const orientationy = 0.0; const orientationz = -1.0; note the minus value on our z orientation — this sets the boombox to face us.
...And 2 more matches

Understandable - Accessibility
note: to read the w3c definitions for understandable and its guidelines and success criteria, see principle 3: understandable — information and the operation of user interface must be understandable.
... see video and audio content, and pronunciation guide for english dictionary note: also see the wcag description for guideline 3.1 readable: make text content readable and understandable.
... note: also see the wcag description for guideline 3.2 predictable: make web pages appear and operate in predictable ways.
...And 2 more matches

:checked - CSS: Cascading Style Sheets
note: because browsers often treat <option>s as replaced elements, the extent to which they can be styled with the :checked pseudo-class varies from browser to browser.
... note: for an analogous effect, but based on the :hover pseudo-class and without hidden radioboxes, see this demo, taken from the :hover reference page.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internet:checkedchrome full support 1notes full support 1notes notes on macos, styling <option&rt; elements has no effect.edge full support 12notes full support 12notes notes on macos, styling <option&rt; elements has no effect.firefox full support 1notes ...
...And 2 more matches

:visited - CSS: Cascading Style Sheets
note: for more information on these limitations and the reasons behind them, see privacy and the :visited selector.
... full support 4opera android full support 10.1safari ios full support 1samsung internet android full support 1.0:visited no longer matches <link> elementschrome full support 1notes full support 1notes notes chromium has never matched <link> elements with link pseudo-classes.edge full support 12firefox full support 70ie no support noopera full support ...
...15notes full support 15notes notes chromium has never matched <link> elements with link pseudo-classes.safari full support 12webview android full support 4.4notes full support 4.4notes notes chromium has never matched <link> elements with link pseudo-classes.chrome android full support 18notes full support 18notes notes chromium has never matched <link> elements with link pseudo-classes.firefox android no support noopera android full support ...
...And 2 more matches

@supports - CSS: Cascading Style Sheets
the following examples are both valid: @supports not (not (transform-origin: 2px)) {} @supports (display: grid) and (not (display: inline-grid)) {} note: there is no need to enclose the not operator between two parentheses at the top level.
...the following are both equivalent: @supports (transform-style: preserve) or (-moz-transform-style: preserve) or (-o-transform-style: preserve) or (-webkit-transform-style: preserve) {} @supports (transform-style: preserve-3d) or ((-moz-transform-style: preserve-3d) or ((-o-transform-style: preserve-3d) or (-webkit-transform-style: preserve-3d))) {} note: when using both and and or operators, the parentheses must be used to define the order in which they apply.
...to change preferences in firefox, visit about:config.ie no support noopera full support 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 disable...
...And 2 more matches

Relationship of flexbox to other layout methods - CSS: Cascading Style Sheets
note: css versions 1 and 2 were a single monolithic specification where all of css was defined in one large document.
...there is a note in the flexbox spec stating that in the future, once it is completed, the definitions in box alignment level 3 will supersede those of flexbox: "note: while the alignment properties are defined in css box alignment [css-align-3], flexible box layout reproduces the definitions of the relevant ones here so as to not create a normative dependency that may slow down advancement of the spec.
... horizontal-tb vertical-rl vertical-lr sideways-rl sideways-lr note that sideways-rl and sideways-lr have support only in firefox currently.
...And 2 more matches

WebKit CSS extensions - CSS: Cascading Style Sheets
webkit-only properties note: avoid using on websites.
... webkit-prefixed properties on the standards track -webkit-appearance -webkit-font-size-delta -webkit-mask-composite -webkit-mask-position-x -webkit-mask-position-y -webkit-mask-repeat-x -webkit-mask-repeat-y formerly proprietary properties that are now standard note: to maximize the compatibility of your css, you should use the unprefixed standard properties instead of the prefixed ones listed below.
... note: due to the legacy code in a multitude of web sites that used -webkit- prefixed properties, edge and firefox redirect many -webkit- prefixed properties to -moz-, -ms-, and unprefixed equivalents.
...And 2 more matches

element() - CSS: Cascading Style Sheets
ment() experimentalchrome no support noedge no support nofirefox full support 57prefixed full support 57prefixed prefixed implemented with the vendor prefix: -moz- no support 29 — 57prefixed notes prefixed implemented with the vendor prefix: -moz-notes -moz-element() is limited to background-image, background, border-image and border-image-source.
... no support 4 — 29prefixed notes prefixed implemented with the vendor prefix: -moz-notes -moz-element() is limited to background-image and background.ie no support noopera no support nosafari no support nowebview android no support nochrome android no support nofirefox android full support 60prefixed full support 60prefixed prefixed implemented with the vendor prefix: -moz- no support 29 — 60prefixed notes prefixed implemented w...
...ith the vendor prefix: -moz-notes -moz-element() is limited to background-image, background, border-image and border-image-source.
...And 2 more matches

image-set() - CSS: Cascading Style Sheets
21prefixed full support 21prefixed prefixed implemented with the vendor prefix: -webkit-edge full support 79prefixed full support 79prefixed prefixed implemented with the vendor prefix: -webkit-firefox no support nonotes no support nonotes notes see bug 1107646.ie no support noopera full support 15prefixed full support 15prefixed prefixed implemented with the vendor prefix: -webkit-safari partial support 6pr...
...efixed notes partial support 6prefixed notes prefixed implemented with the vendor prefix: -webkit-notes support for url images only and x is the only supported resolution unit.
... full support 4.4prefixed prefixed implemented with the vendor prefix: -webkit-chrome android full support 25prefixed full support 25prefixed prefixed implemented with the vendor prefix: -webkit-firefox android no support nonotes no support nonotes notes see bug 1107646.opera android full support 14prefixed full support 14prefixed prefixed implemented with the vendor prefix: -webkit-safari ios partial support 6prefixed notes partial support ...
...And 2 more matches

max-height - CSS: Cascading Style Sheets
desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetmax-heightchrome full support 18edge full support 12firefox full support 1notes full support 1notes notes css 2.1 leaves the behavior of max-height with table undefined.
... firefox supports applying max-height to table elements.ie full support 7opera full support 7notes full support 7notes notes css 2.1 leaves the behavior of max-height with table undefined.
... 25prefixed prefixed implemented with the vendor prefix: -webkit-edge full support 79 full support 79 full support 79prefixed prefixed implemented with the vendor prefix: -webkit-firefox partial support 3prefixed notes partial support 3prefixed notes prefixed implemented with the vendor prefix: -moz-notes firefox implements the definitions given in css3 basic box.
...And 2 more matches

quotes - CSS: Cascading Style Sheets
18firefox android full support 4opera android full support 14safari ios full support 9samsung internet android full support 1.0auto keywordchrome no support nonotes no support nonotes notes this value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingedge no support nonotes no support nonotes notes this value is not supported, but the default browser behavior ...
...is to choose appropriate quotes for the user's language settingfirefox full support 70ie no support nonotes no support nonotes notes this value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingopera no support nonotes no support nonotes notes this value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingsafari no support nonotes no support nonotes notes th...
...is value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingwebview android no support nonotes no support nonotes notes this value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingchrome android no support nonotes no support nonotes notes this value is not supported, but the default browser behavior is to choose appropriate quotes for the user's language settingfirefox android no support noopera android no support ...
...And 2 more matches

Adding captions and subtitles to HTML5 video - Developer guides
note: you can find the source on github, and also view the example live.
... note: the webvtt api gives us access to all the text tracks that are defined for an html5 video using the <track> element.
...height white-space for example, to change the text colour of the text track cues you can write: ::cue { color:#ccc; } if the webvtt file uses voice spans, which allow cues to be defined as having a particular "voice": 0 00:00:00.000 --> 00:00:12.000 <v test>[test]</v> then this specific 'voice' will be stylable like so: ::cue(v[voice='test']) { color:#fff; background:#0095dd; } note: some of the styling of cues with ::cue currently works on chrome, opera, and safari, but not yet on firefox.
...And 2 more matches

Constraint validation - Developer guides
note: html5 constraint validation doesn't remove the need for validation on the server side.
... note that most input types don't have intrinsic constraints, as some are simply barred from constraint validation or have a sanitization algorithm transforming incorrect values to a correct default.
... note: if the novalidate attribute is set on the <form> element, interactive validation of the constraints doesn't happen.
...And 2 more matches

<img>: The Image Embed element - HTML: Hypertext Markup Language
note: browsers do not always display images.
... note: this attribute is allowed only if the <img> element is a descendant of an <a> element with a valid href attribute.
... note: loading is only deferred when javascript is enabled.
...And 2 more matches

<input type="password"> - HTML: Hypertext Markup Language
note: any forms involving sensitive information like passwords (e.g.
... note: the line feed (u+000a) and carriage return (u+000d) characters are not permitted in a password value.
... note: avoid using the placeholder attribute if you can.
...And 2 more matches

<input type="radio"> - HTML: Hypertext Markup Language
note: checkboxes are similar to radio buttons, but with an important distinction: radio buttons are designed for selecting one value out of a set, whereas checkboxes let you turn individual values on and off.
... note: if no radio button is selected when the form is submitted, the radio group is not included in the submitted form data at all, since there is no value to report.
... note: if you put the checked attribute on more than one radio button, later instances will override earlier ones; that is, the last checked radio button will be the one that is selected.
...And 2 more matches

<listing> - HTML: Hypertext Markup Language
note: do not use this element.
... implementation note: up to gecko 1.9.2 inclusive, firefox implements the htmlspanelement interface for this element.
... desktopmobilechromeedgefirefoxinternet exploreroperasafariandroid webviewchrome for androidfirefox for androidopera for androidsafari on iossamsung internetlisting deprecatedchrome no support noedge no support nofirefox no support nonotes no support nonotes notes before firefox 4, this element implemented the htmlspanelement interface instead of the standard htmlelement interface.ie no support noopera no support nosafari no support nowebview android ...
...And 2 more matches

<thead>: The Table Head element - HTML: Hypertext Markup Language
note: do not use this attribute as it is obsolete (not supported) in the latest standard.
... = "#00ff00" gray = "#808080" olive = "#808000" white = "#ffffff" yellow = "#ffff00" maroon = "#800000" navy = "#000080" red = "#ff0000" blue = "#0000ff" purple = "#800080" teal = "#008080" fuchsia = "#ff00ff" aqua = "#00ffff" usage note: do not use this attribute, as it is non-standard and only implemented in some versions of microsoft internet explorer: the <thead> element should be styled using css.
... note: do not use this attribute as it is obsolete (and not supported) in the latest standard.
...And 2 more matches

<video>: The Video Embed element - HTML: Hypertext Markup Language
note: sites that automatically play audio (or videos with an audio track) can be an unpleasant experience for users, so should be avoided when possible.
...note that the absence of this attribute does not imply that the video will always be played in fullscreen.
... note: the autoplay attribute has precedence over preload.
...And 2 more matches

Using the application cache - HTML: Hypertext Markup Language
note that if you change any cached resources on the server, you must also change the manifest file itself, so that the browser knows it needs to fetch all the resources again.
... note: on apache servers, the mime type for manifest (.appcache) files can be set by adding addtype text/cache-manifest .appcache to a .htaccess file within either the root directory, or the same directory as the application.
... note: relative uris are relative to the cache manifest's uri, not to the uri of the document referencing the manifest.
...And 2 more matches

A re-introduction to JavaScript (JS tutorial) - JavaScript
one way of creating arrays is as follows: var a = new array(); a[0] = 'dog'; a[1] = 'cat'; a[2] = 'hen'; a.length; // 3 a more convenient notation is to use an array literal: var a = ['dog', 'cat', 'hen']; a.length; // 3 note that array.length isn't necessarily the number of items in the array.
... it is important to note that wherever the rest parameter operator is placed in a function declaration it will store all arguments after its declaration, but not before.
... note that javascript functions are themselves objects — like everything else in javascript — and you can add or change properties on them just like we've seen earlier in the objects section.
...And 2 more matches

Details of the object model - JavaScript
note that ecmascript 2015 introduces a class declaration: javascript classes, introduced in ecmascript 2015, are primarily syntactical sugar over javascript's existing prototype-based inheritance.
... note: the term instance has a specific technical meaning in class-based languages.
... note: this may not work as expected if the constructor function is called with arguments which convert to false (like 0 (zero) and empty string ("").
...And 2 more matches

Grammar and types - JavaScript
note: you might also see a third type of comment syntax at the start of some javascript files, which looks something like this: #!/usr/bin/env node.
... parseint('101', 2) // 5 an alternative method of retrieving a number from a string is with the + (unary plus) operator: '1.1' + '1.1' // '1.11.1' (+'1.1') + (+'1.1') // 2.2 // note: the parentheses are added for clarity, not required.
... the following example creates the coffees array with three elements and a length of three: let coffees = ['french roast', 'colombian', 'kona']; note : an array literal is a type of object initializer.
...And 2 more matches

Working with objects - JavaScript
ed by commas var myobj = new object(), str = 'mystring', rand = math.random(), obj = new object(); myobj.type = 'dot syntax'; myobj['date created'] = 'string with space'; myobj[str] = 'string value'; myobj[rand] = 'random number'; myobj[obj] = 'object'; myobj[''] = 'even an empty string'; console.log(myobj); please note that all keys in the square bracket notation are converted to string unless they're symbols, since javascript object property names (keys) can only be strings or symbols (at some point, private names will also be added as the class fields proposal progresses, but you won't use them with [] form).
...(note that you may need to wrap the object literal in parentheses if the object appears where a statement is expected, so as not to have the literal be confused with a block statement.) object initializers are expressions, and each object initializer results in a new object being created whenever the statement in which it appears is executed.
...note that the engine property is also an object with its own properties.
...And 2 more matches

Functions - JavaScript
the function constructor note: using the function constructor to create functions is not recommended since it needs the function body as a string which may prevent some js engine optimizations and can also cause other problems.
... the generatorfunction constructor note: generatorfunction is not a global object, but could be obtained from generator function instance (see generatorfunction for more detail).
... note: using the generatorfunction constructor to create functions is not recommended since it needs the function body as a string which may prevent some js engine optimizations and can also cause other problems.
...And 2 more matches

Date - JavaScript
note: it's important to keep in mind that while the time value at the heart of a date object is utc, the basic methods to fetch the date and time or its components all work in the local (i.e.
... it should be noted that the maximum date is not of the same value as the maximum safe integer (number.max_safe_integer is 9,007,199,254,740,991).
... note: parsing of strings with date.parse is strongly discouraged due to browser differences and inconsistencies.
...And 2 more matches

Object.create() - JavaScript
in obj){ console.log(prop + ": " + obj[prop] + "\n" ); } } not such simple results: (especially if silent error-trapping had hidden the error messages) ob={}; ob.po=oco; ob.pn=ocn; // create a compound object using the test objects from above as property values > showproperties( ob ) // display top-level properties - po: [object object] - error: cannot convert object to primitive value note that only first property gets shown.
... (but if the same object is created simply in a different order -- at least in some implementations...) ob={}; ob.pn=ocn; ob.po=oco; // create same compound object again, but create same properties in different order > showproperties( ob ) // display top-level properties - error: cannot convert object to primitive value note that neither property gets shown.
... note that such a different order may arise statically via disparate fixed codings such as here, but also dynamically via whatever the order any such property-adding code-branches actually get executed at runtime as depends on inputs and/or random-variables.
...And 2 more matches

WebAssembly.instantiate() - JavaScript
examples note: you'll probably want to use webassembly.instantiatestreaming() in most cases, as it is more efficient than instantiate().
... var importobject = { imports: { imported_func: function(arg) { console.log(arg); } } }; fetch('simple.wasm').then(response => response.arraybuffer() ).then(bytes => webassembly.instantiate(bytes, importobject) ).then(result => result.instance.exports.exported_func() ); note: you can also find this example at index.html on github (view it live also).
... desktopmobileserverchromeedgefirefoxinternet exploreroperasafariandroid 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 ...
...And 2 more matches

Spread syntax (...) - JavaScript
copy an array const arr = [1, 2, 3]; const arr2 = [...arr]; // like arr.slice() arr2.push(4); // arr2 becomes [1, 2, 3, 4] // arr remains unaffected note: spread syntax effectively goes one level deep while copying an array.
...without spread syntax, this is done as: const arr1 = [0, 1, 2]; const arr2 = [3, 4, 5]; // append all items from arr2 onto arr1 arr1 = arr1.concat(arr2); with spread syntax this becomes: let arr1 = [0, 1, 2]; let arr2 = [3, 4, 5]; arr1 = [...arr1, ...arr2]; // arr1 is now [0, 1, 2, 3, 4, 5] // note: not to use const otherwise, it will give typeerror (invalid assignment) array.prototype.unshift() is often used to insert an array of values at the start of an existing array.
... without spread syntax, this is done as: const arr1 = [0, 1, 2]; const arr2 = [3, 4, 5]; // prepend all items from arr2 onto arr1 array.prototype.unshift.apply(arr1, arr2) // arr1 is now [3, 4, 5, 0, 1, 2] with spread syntax, this becomes: let arr1 = [0, 1, 2]; let arr2 = [3, 4, 5]; arr1 = [...arr2, ...arr1]; // arr1 is now [3, 4, 5, 0, 1, 2] note: unlike unshift(), this creates a new arr1, and does not modify the original arr1 array in-place.
...And 2 more matches

alignment-baseline - SVG: Scalable Vector Graphics
note: as a presentation attribute alignment-baseline can be used as a css property.
... as a presentation attribute, it can be applied to any element but it has effect only on the following four elements: <tspan>, <tref>, <altglyph>, and <textpath> usage notes value auto | baseline | before-edge | text-before-edge | middle | central | after-edge | text-after-edge | ideographic | alphabetic | hanging | mathematical | top | center | bottom default value auto animatable yes auto the value is the dominant-baseline of the script to which the character belongs - i.e., use the dominant-baseline of the parent.
... note: this keyword may be mapped to text-top.
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