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In Firefox 3, the built-in help viewer was removed. The “Help → Help Contents” menu item and pressing [F1] now direct the user to online help instead. This preference determines which URL to visit for help.

Possible values and their effects

The URL to visit when a user triggers the built-in help function. Default value is, where %APP%, %VERSION%, %OS%, and %LOCALE% are replaced with “firefox”, the current browser version, the user’s OS, and the value of general.useragent.locale, respectively.

First checked in

2008-03-24 by Mike Connor

Has an effect in

  • Firefox (nightly builds since 2008-03-24)

Related bugs

External links