For some days i'm experiencing many Firefox crashes on openSUSE 12.1 GNOME 32-bit. Version 11 freezes and a downgrade to 10 results in opening the bug report tool. Starting the browser from terminal does not invoke any useful error messages. Safe mode without extensions makes no difference, cleaning the cookies neither. Two definite reasons for this behavior are - trying to write a tweet in twitter, and restoring a session with 36 tabs in 2 windows (which normally is not a problem at all).

Do you have any ideas?