MozillaZine

About:config

From MozillaZine Knowledge Base

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In Firefox and Mozilla, you can type "about:config" in the Location Bar. In Thunderbird, you could set your Mail Start page in the Options to "chrome://global/content/config.xul" (but you can't until [https://bugzilla.mozilla.org/show_bug.cgi?id=262626 Bug 262626] is fixed). In Firefox and Mozilla, you can type "about:config" in the Location Bar. In Thunderbird, you could set your Mail Start page in the Options to "chrome://global/content/config.xul" (but you can't until [https://bugzilla.mozilla.org/show_bug.cgi?id=262626 Bug 262626] is fixed).
-===External Links===+===References===
-* [http://preferential.mozdev.org/ Preferential extension] -- An about:config-like extension that has some extra features (documentation for some of the preferences, for example).+* [http://preferential.mozdev.org/ Preferential extension] &mdash; An about:config-like extension that has some extra features (documentation for some of the preferences, for example).
-* [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] &mdash; Step by step guide with screenshots.
* [http://preferential.mozdev.org/preferences.html List of preferences and what they do]. * [http://preferential.mozdev.org/preferences.html List of preferences and what they do].
-* [[About:config Entries]] -- MozillaZine KB's list of preferences and what they do.+* [[About:config Entries]] &mdash; MozillaZine KB's list of preferences and what they do.
 +* [[About Protocol Links]] &mdash; other about: strings.

Revision as of 18:59, 1 December 2004

What is about:config

about:config is a special page that lists all Mozilla preferences (read from "prefs.js" and "user.js"), many of which are not present in Options/Preferences dialog. Preferences can be changed here.

Warning: Changing these values can, in rare circumstances, break Mozilla, Firefox, or Thunderbird or cause strange behavior. Only edit these preferences if you know what you are doing.

Opening about:config

In Firefox and Mozilla, you can type "about:config" in the Location Bar. In Thunderbird, you could set your Mail Start page in the Options to "chrome://global/content/config.xul" (but you can't until Bug 262626 is fixed).

References