Firefox 3.1 keeps crashing on me..

Today I sat behind my other PC (new) with Vista32 Premium and all updates present. Kaspersky IS 2009 is also on this system. I have not had any problem last week on the PC, but there where 12 updates for Vista so i'd installed those and rebooted pc..

Now every time I want to post something in a forum. Or use some kind of contact form. FF crashes and want to send a report which I did about 12 times in the last 5 minutes.

Guess this must be my fault somehow otherwise the internet would be full of complaints. Anyways I now forced to type this message with IE7 which I never used other than for checking a layout once in a while. I remember having this issue back with the first release of FF 3.0 and it was gone after installing 3.1, but it's back again..

Help I want my FF back! No serious what could it be?

It used to do that for me too, but its on windowsxp home here, and then it stopped.... not sure what fixed it or I'd tell you...

Have you already tried to run it in safe mode? Sometimes it crashes because of an old version of a plugin oder add on.

Aha I noticed a lot of plugins inside FF that I was not aware of before. Office, WAG, and Windows foundation + realplayer plugins. I have disabled those now and try again to see..

Edit: I disable all extensions and use only the default theme. Removed all temp files and tried again, but FF keeps crashing. Well I guess I could try re-install it. (even crashed in safe mode).

Reinstalling FF 3.1 fixed it. Guess something was corrupt.

some plugins messes the default theme, deleting it was the solution for me.

i´ve downdated my firefox to 2.x
version 3 causes crashes and the popup-blocker sometimes dont work