Mozilla Firefox 0.8rc/Gnome Crash/Hang problem
This problem occurs in both Firefox 0.8rc and Mozilla 1.6 under XFree86/Gnome (Sarge).
When running either browser and then attempting to input text in the browser address bar the program pauses. After around 2/3 minutes the program suddenly comes back to life and then entering text in the address bar works fine (no more hangs).
This generally happens only when you start to enter text with the keyboard. The address bar text can be manipulated with the mouse but as soon as you input anything with the keyboard you get the dreaded hang.
I can't really submit a bug to mozilla as this is fairly ambigous, but I've documented it here and am posting in the mozilla support forums to see if anyone else has experienced these symptoms.
If you have experienced this (and found out what causes it) then let me know.