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How to Save Tabs When Exiting in Firefox 4.0


I’m a Google Chrome user. There, I admitted it! So when I found out (late) that Firefox 4.0 had been out, I decided to go ahead and upgrade my Mozilla Firefox. All was well, except for some incompatible addons, but no biggie — as I said, I am a Google Chrome user.

The new version looked okay…except for one thing. The option to save your tabs when closing / exiting Firefox was missing! This was a feature I loved to use in Firefox so it was bothersome to see it gone. The message box / dialog box that normally pops up when you attempt to close Firefox no longer was there. If I had used the beta or alpha versions of Firefox 4.0, then I’d have been aware of this ahead of time. D’oh!

Luckily, you can easily fix it without having to install a patch, addon / add-on, or extension. Follow this micro guide I created:

Step 1) Open a new tab and in the address bar type in about:config
Step 2) In the “filter” textbox, type browser.showQuitWarning
Step 3) There should be only ONE item in the list now, which is the showQuitWarning option that you typed into the filter…double click this so that it changes from FALSE to TRUE

Done. Easy, right? It *should* be available more easily than this, but for whatever reason was not. That said, it WILL be taken care of by the Firefox development team so do not worry! They listen to their feedback and are already on top of it.


  1. Comments  Enki   |  Tuesday, 29 March 2011 at 9:30 AM

    Nice fix, although I found my fix by pressing alt to display old-style menu bar, and selecting the “Restore previous tabs” option under History.

  2. Comments  Guide to Tweak Firefox 4.0 to Save Tabs on Close –   |  Friday, 01 April 2011 at 4:32 AM

    […] but that’s it. That’s a beloved feature! Most people would want to be able to haveFirefox 4.0 Save Multiple Tabs On Close after […]

  3. Comments  Abdullah Eyles   |  Friday, 10 June 2011 at 7:44 AM

    Mine WAS asking but stopped recently, I don’t know why.

    Many thanks for this! 😉

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