Firefox 3 Beta Quits After Installing Extension

May 20, 2008 9:12 AM

I love Firefox 3. However, since trying its most recent release, I've been having problems. I mistakenly activated the "nightly tester tools" extension so that I could activate all my old add-ons from Firefox 2.

Since installing the extension FF3 suddenly quits whenever I try to open it. I've reinstalled it, I've deactivated the extension via FF2, and still FF3 won't open.

Does anyone have any ideas? I'm ready to start using FF3: so much faster! I'm running Leopard on a Macbook Pro, by the way.

posted by bronxteacher to Technology (5 answers total)

Ask at the official Mozilla forums.
posted by damn dirty ape at 9:54 AM on May 20, 2008

B0rked profile, most likely.
posted by flabdablet at 9:58 AM on May 20, 2008

I had this problem as well, and I had to manually uninstall the Google toolbar extension (i.e., remove the actual extension files from the library/application support/firefox/profiles/profilename/extensions/ folder) after I used nightly tester tools to force compatibility on all my extensions. This solved the problem for me.
posted by dyslexictraveler at 10:01 AM on May 20, 2008

Can you start Firefox in safe mode? That should run Firefox without any extensions and you should be able to remove NTT.
posted by cyanide at 11:35 AM on May 20, 2008

Do you have the Google Toolbar for FF installed? That add-on will crash FF3 at this point in time. I had to deactivate it (start FF3 in safe mode and deactivate it that way), before I could get FF 3 to work.
posted by longdaysjourney at 2:45 PM on May 20, 2008