


If all else fails, you can ask in the forums or on IRC.When the browser closes, it saves user-specified settings to the prefs.js file in the profile folder.Preference settings, both user-specified and default values, are displayed in the about:config window while Firefox or SeaMonkey is running (in Thunderbird you have to invoke the Config Editor from the Advanced preferences), Settings shown here are updated as you change them in the browser.

A mostly complete list describing available settings can be found online on the about:config entries page (along with mail and news settings specific to Thunderbird and SeaMonkey).You must first determine which settings you want to lock.1.2.1 Other uses for the mozilla.cfg file.
