About:config: Difference between revisions
Wintogreen (talk | contribs) m (→Opening about:config: TB menu sequence) |
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* [[About protocol links]] — other about: pages. | * [[About protocol links]] — other about: pages. | ||
== | ==External links== | ||
* [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. |
Revision as of 16:16, 27 November 2005
about:config (one of the special about: 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 via "Tools -> Options -> Advanced -> General -> Config Editor (button)".
- For Nvu, there's a compatible version of the AboutConfig extension 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 textual, Boolean is true-false and Integer is numerical.
To modify an existing preference, context-click (right-click) on the preference, select Modify and type in the new value. In some cases, Toggle will be the selection offered for boolean (true-false) preferences.
To reset a preference to its default value or to remove an added preference, context-click (right-click) on the preference and select Reset. If you added the entry via about:config, the preference will no longer be listed after restarting the program.
See also
- about:config entries — contains a list of valid about:config entries and their possible values. The article is a reference for what each preference does, it is not the place to edit your preferences.
- About protocol links — other about: pages.
External links
- 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.