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How can I deploy the setting of clear cache on exit for all users?

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How can I deploy the setting of clear cache on exit for all users?

How can I deploy the setting of clear cache on exit for all users?

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Note that Firefox disables the disk cache if you use "Clear history when Firefox closes" to clear the cache (see about:cache), so you can either disable the disk cache via its related pref or set the prefs related to clearing this data,but then other items that have a check-mark by default are cleared as well.

  • browser.cache.disk.enable
  • privacy.clearOnShutdown.cache
  • privacy.sanitize.sanitizeOnShutdown

You can use a mozilla.cfg file in the Firefox program folder to lock prefs or specify new (default) values.

Place a local-settings.js file in the defaults\pref folder where also the channel-prefs.js file is located to specify using mozilla.cfg.

pref("general.config.filename", "mozilla.cfg");

These functions can be used in the mozilla.cfg file:

defaultPref();	// set new default value
pref();		// set pref, but allow changes in current session
lockPref();	// lock pref, disallow changes

See also: