Privacy, permissions, and information security
cooperation among web content, the web browser, and the web server is needed to achieve as much privacy and information security as possible.
... security and privacy defined before we go into any depth about the various security and privacy features available to users on the web, let's define some important terms.
... privacy the concept of privacy is somewhat hard to define.
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Referer header: privacy and security concerns - Web security
there are privacy and security risks associated with the referer http header.
... policy and requirements it would make sense to write a set of security and privacy requirements for your project team(s) that specify usage of such features to mitigate the associated risks.

Privacy
this document lists privacy-related documentation.

Privacy and the :visited selector - CSS: Cascading Style Sheets
little white lies to preserve users' privacy, firefox and other browsers will lie to web applications under certain circumstances: the window.getcomputedstyle method, and similar functions such as element.queryselector, will always return values indicating that a user has never visited any of the links on a page.

Localization content best practices
dtd files <!-- localization note (entity name): {{privacy}} will be replaced at run-time by an active link.
... the string 'privacy-link' will be used as text for this link.
... --> properties files # localization note(privacy-text): {{privacy}} will be replaced at run-time by an # active link.
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Mozilla Crypto FAQ - Archive of obsolete content
will we be able to use gnu privacy guard or other pgp versions with mozilla?
...based on statements made in various internet forums it appears that the developers of gnu privacy guard may create a plugin module to support invocation of gnupg functionality from mozilla; network associates may also create a commercial pgp plugin for mozilla.
... the cryptography policy page maintained by the electronic privacy information center (epic).
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Index - MDN Web Docs Glossary: Definitions of Web-related terms
75 cipher cryptography, glossary, privacy, security in cryptography, a cipher is an algorithm that can encode cleartext to make it unreadable, and to decode it back.
... 77 ciphertext cryptography, glossary, privacy, security in cryptography, a ciphertext is a scrambled message that conveys information but is not legible unless decrypted with the right cipher and the right secret (usually a key), reproducing the original cleartext.
... 96 cryptanalysis cryptography, glossary, privacy, security cryptanalysis is the branch of cryptography that studies how to break codes and cryptosystems.
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Supporting per-window private browsing - Archive of obsolete content
} } catch(e) { components.utils.reporterror(e); return; } } obtaining an nsiloadcontext for privacy-sensitive apis some apis (such as nsitransferable and nsiwebbrowserpersist) take nsiloadcontext arguments that are used to determine whether they should be classed as private or not (for example, whether the uri being persisted by saveuri should be added to the permanent download history).
... to do this, import resource://gre/modules/privatebrowsingutils.jsm and use privatebrowsingutils.getprivacycontextfromwindow(win), passing a window object that is related to the content in question.
...if some action triggered by a chrome element (such as a button) requires an api that takes a privacy context, the most relevant window is the one that contains the chrome element.
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nsIWebBrowserPersist
void savedocument(in nsidomdocument adocument, in nsisupports afile, in nsisupports adatapath, in string aoutputcontenttype, in unsigned long aencodingflags, in unsigned long awrapcolumn); void saveuri(in nsiuri auri, in nsisupports acachekey, in nsiuri areferrer, in long areferrerpolicy, in nsiinputstream apostdata, in string aextraheaders, in nsisupports afile, in nsiloadcontext aprivacycontext); void saveprivacyawareuri(in nsiuri auri, in nsisupports acachekey, in nsiuri areferrer, in long areferrerpolicy, in nsiinputstream apostdata, in string aextraheaders, in nsisupports afile, in boolean aisprivate); attributes attribute type description currentstate unsigned long current state of the persister object.
... void saveuri( in nsiuri auri, in nsisupports acachekey, in nsiuri areferrer, in long areferrerpolicy, in nsiinputstream apostdata, in string aextraheaders, in nsisupports afile, in nsiloadcontext aprivacycontext ); parameters auri uri to save to file.
... aprivacycontext a context derived from a relevant window or document (eg.
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Downloading Files - Archive of obsolete content
components.utils.import("resource://gre/modules/privatebrowsingutils.jsm"); const webbrowserpersist = components.constructor("@mozilla.org/embedding/browser/nswebbrowserpersist;1", "nsiwebbrowserpersist"); var persist = webbrowserpersist(); var targetfile = services.dirsvc.get("desk", ci.nsifile); targetfile.append("file.bin"); // obtain the privacy context of the browser window that the url // we are downloading comes from.
...var privacy = privatebrowsingutils.privacycontextfromwindow(urlsourcewindow); persist.persistflags = persist.persist_flags_from_cache | persist.persist_flags_replace_existing_files; persist.saveuri(uritosave, null, null, null, "", targetfile, privacy); if you don't need detailed progress information, you might be happier with nsidownloader.
...ingutils.jsm"); const webbrowserpersist = components.constructor("@mozilla.org/embedding/browser/nswebbrowserpersist;1", "nsiwebbrowserpersist"); var persist = webbrowserpersist(); var targetfile = services.dirsvc.get("desk", ci.nsifile); targetfile.append("file.bin"); var obj_uri = services.io.newuri(aurltodownload, null, null); // obtain the privacy context of the browser window that the url // we are downloading comes from.
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Updating addons broken by private browsing changes - Archive of obsolete content
moziasyncfavicons/nsifaviconservice: setandfetchfaviconforpage/setandloadfaviconforpage now take a required privacy status argument, either nsifaviconservice.favicon_load_private or nsifaviconservice.favicon_load_non_private.
... nsicontentprefservice: getpref, setpref, haspref, hascachedpref, removepref, removegroupedprefs, removeprefsbyname, getprefs, and getprefsbyname all take a required nsiloadcontext argument to indicate the privacy status of the pref in question.
... use privatebrowsingutils.getprivacycontextfromwindow(win) to obtain it from the relevant window.
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Using the clipboard
r the built-in transferable class const nstransferable = components.constructor("@mozilla.org/widget/transferable;1", "nsitransferable"); // create a wrapper to construct an nsitransferable instance and set its source to the given window, when necessary function transferable(source) { var res = nstransferable(); if ('init' in res) { // when passed a window object, find a suitable privacy context for it.
... if (source instanceof ci.nsidomwindow) // note: in gecko versions >16, you can import the privatebrowsingutils.jsm module // and use privatebrowsingutils.privacycontextfromwindow(sourcewindow) instead source = source.queryinterface(ci.nsiinterfacerequestor) .getinterface(ci.nsiwebnavigation); res.init(source); } return res; } here, the string "text to copy" will be copied but you can replace this with the text string that you want to copy.
...next we need to initialize it with a "privacy context", which will ensure that source data from inside private browsing mode will be cleared when the mode is exited.
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Using the Screen Capture API - Web APIs
note: for privacy and security reasons, screen sharing sources are not enumerable using enumeratedevices().
... security as is always the case when sharing content over a network, it's important to consider the privacy and safety implications of screen sharing.
... potential risks privacy and security issues surrounding screen sharing are usually not overly serious, but they do exist.
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:visited - CSS: Cascading Style Sheets
for privacy reasons, the styles that can be modified using this selector are very limited.
... styling restrictions for privacy reasons, browsers strictly limit which styles you can apply using this pseudo-class, and how they can be used: allowable css properties are color, background-color, border-color, border-bottom-color, border-left-color, border-right-color, border-top-color, column-rule-color, outline-color, text-decoration-color, and text-emphasis-color.
... note: for more information on these limitations and the reasons behind them, see privacy and the :visited selector.
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MCD, Mission Control Desktop, AKA AutoConfig - Archive of obsolete content
[root@calaz firefox]# cat firefox.cfg //put everything in a try/catch try { //privacy & security defaultpref("signon.remembersignons", false); //proxy and cache, as it is on nfs volume, we don't want cache lockpref("browser.cache.disk.capacity", 0); lockpref("network.cookie.cookiebehavior", 0); defaultpref("network.proxy.autoconfig_url", "http://wpad.int-evry.fr/wpad.dat"); defaultpref("network.proxy.type", 2); lockpref("network.protocol-handler.app.mailto", "/usr/bin/thunderbird...
...uild platform target i686-pc-linux-gnu build tools compiler version compiler flags gcc gcc version 3.4.3 20050227 (red hat 3.4.3-22.fc3) -wall -w -wno-unused -wpointer-arith -wcast-align -wno-long-long -pedantic -pthread -pipe c++ gcc version 3.4.3 20050227 (red hat 3.4.3-22.fc3) -fno-rtti -fno-exceptions -wall -wconversion -wpointer-arith -wcast-align -woverloaded-virtual -wsynth -wno-ctor-dtor-privacy -wno-non-virtual-dtor -wno-long-long -pedantic -fshort-wchar -pthread -pipe -i/usr/x11r6/include configure arguments --disable-mailnews --enable-extensions=cookie,xml-rpc,xmlextras,pref,transformiix,universalchardet,webservices,inspector,gnomevfs,negotiateauth --enable-crypto --disable-composer --enable-single-profile --disable-profilesharing --with-system-jpeg --with-system-zlib --with-system-p...
... [root@b008-02 /usr/lib/firefox-1.5.0.2] $cat firefox.cfg //put everything in a try/catch try { //privacy & security defaultpref("signon.remembersignons", false); // 1) env variables if(getenv("user") != "") { // *nix settings var env_user = getenv("user"); var env_home = getenv("home"); } else { // windows settings var env_user = getenv("username"); var env_home = getenv("homepath"); } var env_mozdebug = getenv("mozilla_debug"); /* 2) define here (because if set after "3)" below it doe...
...up.homepage_override", true); lockpref("startup.homepage_override_url", "http://www.int-evry.fr/s2ia/portail/"); //unlockpref("startup.homepage_override_url"); lockpref("browser.cache.disk.capacity", 100); lockpref("network.cookie.cookiebehavior", 0); //network preferences lockpref("network.proxy.autoconfig_url", "http://www.int-evry.fr/local/config.proxy"); lockpref("network.proxy.type", 2); //privacy & security defaultpref("signon.remembersignons", false); //account lockpref("mail.account.account1.identities", "id1"); lockpref("mail.account.account1.server", "server1"); lockpref("mail.account.account2.server", "server2"); lockpref("mail.account.account3.server", "server3"); lockpref("mail.accountmanager.accounts", "account1,account2,account3"); lockpref("mail.accountmanager.defaultaccount", ...