About protocol links: Difference between revisions

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m (about:healthreport added bug 718066)
(Separated about: URLs with sections →‎Listed about: URLs: and →‎Unlisted about: URLs: ; modified some links in →‎Extensions: ; added some info)
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There are a few special URLs, which begin with '''about:''', that you can type into the Location Bar. ''(In Thunderbird, which has no Location Bar, or in SeaMonkey, you can also use them as "Mail Start Page".)''
There are a few special URLs, which begin with '''about:''', that you can type into the Location Bar. ''(In Thunderbird, which has no Location Bar, or in SeaMonkey, you can also use them as "Mail Start Page".)''


==Listed about: URLs==
about: URLs that are listed in about:about page.
* '''about:''' — The same page as "Help -> About" ''(except that, on some applications, Help → About is a much smaller popup).''
* '''about:''' — The same page as "Help -> About" ''(except that, on some applications, Help → About is a much smaller popup).''
* '''about:about''' — Lists all these about: URLs ([[Mozilla Suite|Mozilla Suite/SeaMonkey]] or [[Firefox]] 4 and newer only).
* '''about:about''' — Lists all these about: URLs ([[Mozilla Suite|Mozilla Suite/SeaMonkey]] or [[Firefox]] 4 and newer only).
* '''about:addons''' — The "new" addons manager, in trunk builds dated 2010-05-11 or later.
* '''about:addons''' — The "new" addons manager, in trunk builds dated 2010-05-11 or later.
* '''about:blank''' — A blank page. Useful for setting as your homepage.
* '''about:blocked'''
* '''about:bloat''' — Displays [http://www.mozilla.org/projects/xpcom/MemoryTools.html#BloatView BloatView] output (disabled in release builds).
** '''about:bloat?new'''
** '''about:bloat?clear'''
* '''about:buildconfig''' — Reveals details about your Mozilla build options.
* '''about:buildconfig''' — Reveals details about your Mozilla build options.
* '''about:cache''' — Displays cache statistics and disk cache directory location.
* '''about:cache''' — Displays cache statistics and disk cache directory location.
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** '''about:cache?device=disk''' — Lists disk cache entries.
** '''about:cache?device=disk''' — Lists disk cache entries.
* '''about:cache-entry''' — Shows information about a cache entry. Used in about:cache links. Requires parameters.
* '''about:cache-entry''' — Shows information about a cache entry. Used in about:cache links. Requires parameters.
* '''about:certerror'''
* '''about:compartments''' shows a list of live JavaScript compartments [https://developer.mozilla.org/en/Zombie_compartments].  Implemented starting with Firefox 13 ({{bug|702300}})
* '''about:compartments''' shows a list of live JavaScript compartments [https://developer.mozilla.org/en/Zombie_compartments].  Implemented starting with Firefox 13 ({{bug|702300}})
* [[about:config|'''about:config''']] — GUI for modifying user [[:Category:Preferences|preferences]]. ''(Also accessible in Thunderbird by means of the "Config Editor" button in the "Advanced" Preferences).''
* [[about:config|'''about:config''']] — GUI for modifying user [[:Category:Preferences|preferences]]. ''(Also accessible in Thunderbird by means of the "Config Editor" button in the "Advanced" Preferences).''
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* '''about:home''' — Firefox Start Page
* '''about:home''' — Firefox Start Page
* '''about:healthreport''' — new on Firefox 21 ({{bug|718066}}, {{bug|719484}}).  Also accessible via "Help -> Firefox Health Report".  
* '''about:healthreport''' — new on Firefox 21 ({{bug|718066}}, {{bug|719484}}).  Also accessible via "Help -> Firefox Health Report".  
* [http://www.mozilla.org/docs/web-developer/samples/kitchensink.xml '''about:kitchensink'''] — Was never included in Mozilla for the reasons listed in {{bug|122411}} ("Mozilla does not have a kitchen sink"). You can install an [https://addons.mozilla.org/extensions/moreinfo.php?id=742 extension that adds it] though :)
* '''about:licence''' and '''about:license''' — both show the Mozilla Public License and the Netscape Public License for the piece of software. ( Only in products based on Gecko 1.8 or later)  
* '''about:licence''' and '''about:license''' — both show the Mozilla Public License and the Netscape Public License for the piece of software. ( Only in products based on Gecko 1.8 or later)  
* '''about:logo''' — Displays the application logo ([[Mozilla Suite]], {{SeaMonkey}}, and {{Firefox}} 3).
* '''about:logo''' — Displays the application logo ([[Mozilla Suite]], {{SeaMonkey}}, and {{Firefox}} 3).
* '''about:memory''' shows the memory usage of Firefox starting in Firefox 3.6 (Windows) and Firefox 4 (Linux). Implemented in {{bug|515354}}
* '''about:memory''' shows the memory usage of Firefox starting in Firefox 3.6 (Windows) and Firefox 4 (Linux). Implemented in {{bug|515354}}
* [http://www.mozilla.org/book/ '''about:mozilla'''] — The famous ''[http://en.wikipedia.org/wiki/The_Book_of_Mozilla Book of Mozilla]''
* [http://www.mozilla.org/book/ '''about:mozilla'''] — The famous ''[http://en.wikipedia.org/wiki/The_Book_of_Mozilla Book of Mozilla]''
* '''about:neterror'''
* '''about:newtab''' — the default new tab page since Firefox 13.
* '''about:newtab''' — the default new tab page since Firefox 13.
* '''about:permissions''' shows and manages the permissions as also shown in Tools → Page Info → Permissions. Implemented starting with Firefox 6 ({{bug|573176}})
* '''about:permissions''' shows and manages the permissions as also shown in Tools → Page Info → Permissions. Implemented starting with Firefox 6 ({{bug|573176}})
* [[about:plugins|'''about:plugins''']] — Lists all your plugins as well as other useful information.
* [[about:plugins|'''about:plugins''']] — Lists all your plugins as well as other useful information.
* '''about:preferences'''
* '''about:preferences''' — Firefox only. Open preferences.
* '''about:privatebrowsing'''
* '''about:privatebrowsing'''
* '''about:rights'''
* '''about:rights'''
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* [[Troubleshooting Information report | '''about:support''']] — Starting in Firefox 3.6 ({{bug|367596}}) and SeaMonkey 2.1a trunk builds based on Gecko 1.9.3a ({{bug|518607}}).  Displays  information such as Application Basics (version, link to open the profile folder, link to about:plugins and about:buildconfig), Extensions,  Modified Preferences and, starting in Firefox 4, Graphics information ({{bug|587102}}).  Also accessible via "Help -> Troubleshooting information".
* [[Troubleshooting Information report | '''about:support''']] — Starting in Firefox 3.6 ({{bug|367596}}) and SeaMonkey 2.1a trunk builds based on Gecko 1.9.3a ({{bug|518607}}).  Displays  information such as Application Basics (version, link to open the profile folder, link to about:plugins and about:buildconfig), Extensions,  Modified Preferences and, starting in Firefox 4, Graphics information ({{bug|587102}}).  Also accessible via "Help -> Troubleshooting information".
* '''about:sync-log''' <!-- needs references -->
* '''about:sync-log''' <!-- needs references -->
* '''about:sync-progress''' <!-- needs references -->
* '''about:sync-tab''' <!-- needs references -->
* '''about:sync-tab''' <!-- needs references -->
* '''about:telemetry''' &mdash; new on Firefox/Thunderbird 19 and SeaMonkey 2.16 ({{bug|661881}})
* '''about:telemetry''' &mdash; new on Firefox/Thunderbird 19 and SeaMonkey 2.16 ({{bug|661881}})


===Extensions===
==Unlisted about: URLs==
about: URLs that are not listed in about:about page but exist.
* '''about:blank''' &mdash; A blank page. Useful for setting as your homepage.
* '''about:blocked''' &mdash; Used by Safe Browsing tool to display bad web page.
* '''about:bloat''' &mdash; Displays [http://www.mozilla.org/projects/xpcom/MemoryTools.html#BloatView BloatView] output (disabled in release builds).
** '''about:bloat?new'''
** '''about:bloat?clear'''
* '''about:certerror''' &mdash; Displays ''This Connection is Untrusted'' if a web page has invalid certificate.
* [http://www.mozilla.org/docs/web-developer/samples/kitchensink.xml '''about:kitchensink'''] &mdash; Was never included in Mozilla for the reasons listed in {{bug|122411}} ("Mozilla does not have a kitchen sink"). You can install an [https://addons.mozilla.org/extensions/moreinfo.php?id=742 extension that adds it] though :)
* '''about:neterror''' &mdash; Displays error page.
 
==Extensions==
Certain extensions add a few additional '''about:''' URLs.
Certain extensions add a few additional '''about:''' URLs.
* [http://www.cosmicat.com/extensions/firesomething/ Firesomething] adds two excerpts from ''The Book of Mozilla, Extended edition'' (about:firefox and about:firesomething).
* [http://www.cosmicat.com/extensions/firesomething/ Firesomething] adds two excerpts from ''The Book of Mozilla, Extended edition'' (about:firefox and about:firesomething).
* [http://mozilla.doslash.org/infolister/ InfoLister] adds about:info, a listing of your extensions, themes, and plugins.
* [https://addons.mozilla.org/addon/infolister/ InfoLister] adds about:info, a listing of your extensions, themes, and plugins.
* [https://addons.mozilla.org/extensions/moreinfo.php?id=742 about:kitchensink extension]
* [https://addons.mozilla.org/addon/aboutkitchensink/ about:kitchensink extension]
* [https://addons.mozilla.org/firefox/addon/13681 about:me], (graphs) personalized patterns in browser usage, including trends in browsing history and download activity.  
* [https://addons.mozilla.org/addon/aboutme/ about:me], (graphs) personalized patterns in browser usage, including trends in browsing history and download activity.  
* [http://surfmind.com/lab/mozilla/aboutsearch/ about:search], (graphs) statistical analysis (graphs) of the user's search history
* [http://surfmind.com/lab/mozilla/aboutsearch/ about:search], (graphs) statistical analysis (graphs) of the user's search history
* [http://forums.mozillazine.org/viewtopic.php?t=271309 MR Tech's About:About], also as part of [https://addons.mozilla.org/en-US/seamonkey/addon/421 MR Tech Toolkit]
* [http://forums.mozillazine.org/viewtopic.php?t=271309 MR Tech's About:About], also as part of [https://addons.mozilla.org/addon/mr-tech-toolkit/ MR Tech Toolkit]
* [https://addons.mozilla.org/addon/about-addons-memory/ about:addons-memory], adds an about:addons-memory page that details add-on memory usage.
* [https://addons.mozilla.org/addon/about-addons-memory/ about:addons-memory], adds an about:addons-memory page that details add-on memory usage.


===External Links===
==External Links==
* [http://mxr.mozilla.org/seamonkey/source/docshell/build/nsDocShellModule.cpp#160 Place in Mozilla's code where these are listed]
* [http://mxr.mozilla.org/seamonkey/source/docshell/build/nsDocShellModule.cpp#160 Place in Mozilla's code where these are listed]
* [https://developer.mozilla.org/En/Custom_about:_URLs Custom about: URLs] &mdash; Creating an own about: URL for extension developers.
* [https://developer.mozilla.org/En/Custom_about:_URLs Custom about: URLs] &mdash; Creating an own about: URL for extension developers.

Revision as of 04:59, 11 June 2013

There are a few special URLs, which begin with about:, that you can type into the Location Bar. (In Thunderbird, which has no Location Bar, or in SeaMonkey, you can also use them as "Mail Start Page".)

Listed about: URLs

about: URLs that are listed in about:about page.

  • about: — The same page as "Help -> About" (except that, on some applications, Help → About is a much smaller popup).
  • about:about — Lists all these about: URLs (Mozilla Suite/SeaMonkey or Firefox 4 and newer only).
  • about:addons — The "new" addons manager, in trunk builds dated 2010-05-11 or later.
  • about:buildconfig — Reveals details about your Mozilla build options.
  • about:cache — Displays cache statistics and disk cache directory location.
    • about:cache?device=memory — Lists memory cache entries.
    • about:cache?device=disk — Lists disk cache entries.
  • about:cache-entry — Shows information about a cache entry. Used in about:cache links. Requires parameters.
  • about:compartments shows a list of live JavaScript compartments [1]. Implemented starting with Firefox 13 (bug 702300)
  • about:config — GUI for modifying user preferences. (Also accessible in Thunderbird by means of the "Config Editor" button in the "Advanced" Preferences).
  • about:crashes — List of Breakpad crash reports, with links and datestamps. Only in products based on Gecko 1.9 or later (Firefox 3, Thunderbird 3, SeaMonkey 2).
  • about:credits — The list of contributors to the Mozilla projects.
  • about:data — opens the Data Manager which shows per-site data and permissions. This is part of SeaMonkey 2.x and available as a Firefox extension.
  • about:downloads — new on Firefox 20. (Also in recent versions of SeaMonkey. Jökulsárlón Download Manager may be required.)
  • about:home — Firefox Start Page
  • about:healthreport — new on Firefox 21 (bug 718066, bug 719484). Also accessible via "Help -> Firefox Health Report".
  • about:licence and about:license — both show the Mozilla Public License and the Netscape Public License for the piece of software. ( Only in products based on Gecko 1.8 or later)
  • about:logo — Displays the application logo (Mozilla Suite, SeaMonkey, and Firefox 3).
  • about:memory shows the memory usage of Firefox starting in Firefox 3.6 (Windows) and Firefox 4 (Linux). Implemented in bug 515354
  • about:mozilla — The famous Book of Mozilla
  • about:newtab — the default new tab page since Firefox 13.
  • about:permissions shows and manages the permissions as also shown in Tools → Page Info → Permissions. Implemented starting with Firefox 6 (bug 573176)
  • about:plugins — Lists all your plugins as well as other useful information.
  • about:preferences — Firefox only. Open preferences.
  • about:privatebrowsing
  • about:rights
  • about:robots — Easter egg, see bug 417302. Beginning with March 8th, 2008 trunk builds, it's now available on Firefox 3.0b5.
  • about:sessionrestore
  • about:support — Starting in Firefox 3.6 (bug 367596) and SeaMonkey 2.1a trunk builds based on Gecko 1.9.3a (bug 518607). Displays information such as Application Basics (version, link to open the profile folder, link to about:plugins and about:buildconfig), Extensions, Modified Preferences and, starting in Firefox 4, Graphics information (bug 587102). Also accessible via "Help -> Troubleshooting information".
  • about:sync-log
  • about:sync-progress
  • about:sync-tab
  • about:telemetry — new on Firefox/Thunderbird 19 and SeaMonkey 2.16 (bug 661881)

Unlisted about: URLs

about: URLs that are not listed in about:about page but exist.

  • about:blank — A blank page. Useful for setting as your homepage.
  • about:blocked — Used by Safe Browsing tool to display bad web page.
  • about:bloat — Displays BloatView output (disabled in release builds).
    • about:bloat?new
    • about:bloat?clear
  • about:certerror — Displays This Connection is Untrusted if a web page has invalid certificate.
  • about:kitchensink — Was never included in Mozilla for the reasons listed in bug 122411 ("Mozilla does not have a kitchen sink"). You can install an extension that adds it though :)
  • about:neterror — Displays error page.

Extensions

Certain extensions add a few additional about: URLs.

External Links

Retrieved from "http://kb.mozillazine.org/index.php?title=About_protocol_links&oldid=45916"