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how to sync mozilla about:config setting from one system to other system

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  • Last reply by cor-el

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I have browser base application and my applications is running in about 100 different systems so i need to do the about:config setting in every new system in which i have to start my application. Is their any alternate option of about:config setting so that i can export my one system configuration setting to other system.

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Is this about copying specific prefs to other computers?

There are services.sync.prefs.sync<pref-name> prefs with a value true for each pref that is by default included in syncing preferences.

  • prefs that have a corresponding services.sync.prefs.sync.<pref-name> pref that is set to true will be synced to other devices
  • if you want to sync prefs that are currently not included then create a corresponding Boolean sync pref and set its value to true
    • services.sync.prefs.sync.<pref-name> = true (omit the <>)

Note that there are other ways to transfer prefs to another computer or profile folder.

For Mac: The local-settings.js file needs to be in:

  • /Applications/Firefox.app/Contents/Resources/defaults/pref

The mozilla.cfg file needs to be in:

  • /Applications/Firefox.app/Contents/Resources

See "Changes Over Time" -> "Mac Directory Change"