Disable Firefox session manager

Tuesday, July 17th, 2007

Firefox 2.x has a built in session manager. When the browser is restarted after a crash, it re-opens every window/tab that was open before the crash. This behaviour is very annoying to me, as I never properly close Firefox, but always just halt my machine.

If you want to disable session managing in Firefox, type about:config in the URL bar. Next search for the ‘browser.sessionstore.enabled‘ key and double click it so it’s set to ‘false‘.

If you’re running the Tab Mix Plus extension, you’ll also want to disable its session management in the Tab Mix Plus options dialog (Tools → Tab Mix Plus Options → Sessions → Disable ‘Enable Session Manager’).