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Firefox 12 keeps starting in full-screen mode.

David Shochat
David Shochat
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Ever since upgrading to Firefox 12, it wants to start up in full screen mode. I dopn't mean the extreme full screen mode where even the menu bar is hidden. I mean the more "typical" full screen mode where it just gets as large as possible but has the same content. I tried forcing a new profile (by renaming. ~/.mozilla/firefox) and that fixed it. But then as soon as I brought back the bookmarks toolbar and exited, it was back to starting in full screen mode again. I wish there was something in preferences for this. I NEVER want it to start in full screen mode. This is Ubuntu 11.10.

Ever since upgrading to Firefox 12, it wants to start up in full screen mode. I dopn't mean the extreme full screen mode where even the menu bar is hidden. I mean the more "typical" full screen mode where it just gets as large as possible but has the same content. I tried forcing a new profile (by renaming. ~/.mozilla/firefox) and that fixed it. But then as soon as I brought back the bookmarks toolbar and exited, it was back to starting in full screen mode again. I wish there was something in preferences for this. I NEVER want it to start in full screen mode. This is Ubuntu 11.10.

Chosen solution

Last night I upgraded to Ubuntu 12.04 (aka Precise Pangolin), and the problem has disappeared. No more auto maximize on startup.

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All Replies (3)

Swarnava Sengupta
Swarnava Sengupta
  • Locale Leader
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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

See also:

David Shochat
David Shochat Question owner
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Thanks for your reply. It does not maximize (I think that's the term I should have used) when starting in safe mode. But I think the reason is that it has a smaller window when it starts in safe mode. If I increase the size of the window beyond a certain point, then when I exit and restart FF, it auto-maximizes. If I delete localstore.rdf, again it comes up not auto-maximized. But again, if I make the window a little bigger, exit and restart, then it does come up auto-maximized. And if I make it smaller before exiting, it will come up properly. I really believe this is a Ubuntu/Unity problem. Unity has a very irritating tendency to maximize windows all on its own. When I upgrade to Ubuntu 12.04, I'm hoping there will be an easy way to tell it not to do this.

David Shochat
David Shochat Question owner
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Chosen Solution

Last night I upgraded to Ubuntu 12.04 (aka Precise Pangolin), and the problem has disappeared. No more auto maximize on startup.