About:config: Difference between revisions
From MozillaZine Knowledge Base
Jump to navigationJump to search
(make link to entries more prominent, clean up) |
No edit summary |
||
Line 1: | Line 1: | ||
{{wrongtitle|title=about:config}} | {{wrongtitle|title=about:config}} | ||
'''about:config''' | '''about:config''' (one of the special [[About_protocol_links]]) lists application preferences read from "prefs.js", "[[user.js]]" and from program defaults, many of which are not present in the Options and Preferences dialog. You can use about:config to modify these preferences and to add other "hidden" preferences. '''Warning''': Changing these values can, in rare circumstances, break Mozilla Suite, Firefox, or Thunderbird or cause strange behavior. Only modify these preferences if you know what you are doing. | ||
'''Warning''': Changing these values can, in rare circumstances, break Mozilla Suite, Firefox, or Thunderbird or cause strange behavior. Only | |||
==Opening about:config== | ==Opening about:config== | ||
* In Firefox and Mozilla Suite, type "about:config" in the Location Bar and press Enter. | * In Firefox and Mozilla Suite, type "about:config" (without quotes) in the Location Bar and press Enter. | ||
* In Thunderbird, use [http://aboutconfig.mozdev.org/ AboutConfig extension]. | * In Thunderbird, use the [http://aboutconfig.mozdev.org/ AboutConfig extension]. Starting with Thunderbird 1.5, about:config is accessible from the "Tools" menu (Options > Advanced > ''Config Editor'' button). | ||
* There's a version of AboutConfig extension compatible with Nvu [http://glazman.org/nvu/releases/extensions/ here]. | * There's a version of AboutConfig extension compatible with Nvu [http://glazman.org/nvu/releases/extensions/ here]. | ||
==Adding modifying and resetting preferences== | |||
* To add a new preference, context-click (right-click) anywhere in the list of preferences, select '''New''' then select the type of preference. ''String'' is a textual value, ''Boolean'' is true or false and ''Integer'' is a numbered value. | |||
* To modify an existing preference, context-click (right-click) on the preference, select '''Modify''' then type in the new value you wish to set. | |||
* To reset a preference to its default value or to remove an added preference, context-click (right-click) on the preference, select '''Reset'''. | |||
==about:config entries== | ==about:config entries== | ||
[[about:config entries | This article]] contains a list of valid about:config entries and their possible values. | [[about:config entries | This article]] contains a list of valid about:config entries and their possible values. (That article is a reference for what each preference does, it is not the place to edit your preferences.) | ||
==References== | ==References== | ||
* [http://www.mozilla.org/catalog/end-user/customizing/briefprefs.html A brief guide to Mozilla preferences] | * [http://www.mozilla.org/catalog/end-user/customizing/briefprefs.html A brief guide to Mozilla preferences] | ||
* [http://mozillazine.org/misc/about:config/ MozillaZine Tutorial for about:config] — Step by step guide with screenshots. | * [http://mozillazine.org/misc/about:config/ MozillaZine Tutorial for about:config] — Step by step guide with screenshots. | ||
* [http://preferential.mozdev.org/ Preferential extension] — An about:config | * [http://ilias.ca/mozilla/customizing/ Mozilla Help: Editing Configuration files] — user site: ilias.ca | ||
* [http://preferential.mozdev.org/ Preferential extension] — An extension similar to about:config with extra features, such as documentation for some preferences. | |||
* [[About protocol links]] — other about: pages. | * [[About protocol links]] — other about: pages. |
Revision as of 17:27, 8 September 2005
about:config (one of the special About_protocol_links) lists application preferences read from "prefs.js", "user.js" and from program defaults, many of which are not present in the Options and Preferences dialog. You can use about:config to modify these preferences and to add other "hidden" preferences. Warning: Changing these values can, in rare circumstances, break Mozilla Suite, Firefox, or Thunderbird or cause strange behavior. Only modify these preferences if you know what you are doing.
Opening about:config
- In Firefox and Mozilla Suite, type "about:config" (without quotes) in the Location Bar and press Enter.
- In Thunderbird, use the AboutConfig extension. Starting with Thunderbird 1.5, about:config is accessible from the "Tools" menu (Options > Advanced > Config Editor button).
- There's a version of AboutConfig extension compatible with Nvu here.
Adding modifying and resetting preferences
- To add a new preference, context-click (right-click) anywhere in the list of preferences, select New then select the type of preference. String is a textual value, Boolean is true or false and Integer is a numbered value.
- To modify an existing preference, context-click (right-click) on the preference, select Modify then type in the new value you wish to set.
- To reset a preference to its default value or to remove an added preference, context-click (right-click) on the preference, select Reset.
about:config entries
This article contains a list of valid about:config entries and their possible values. (That article is a reference for what each preference does, it is not the place to edit your preferences.)
References
- A brief guide to Mozilla preferences
- MozillaZine Tutorial for about:config — Step by step guide with screenshots.
- Mozilla Help: Editing Configuration files — user site: ilias.ca
- Preferential extension — An extension similar to about:config with extra features, such as documentation for some preferences.
- About protocol links — other about: pages.