I just upgraded to FF 4.0, and am overall unhappy with the app. It runs much slower than my previous version, and continually hangs...even on the Mozilla websites. I'm going to try and go back to my older version, which I loved.
As noted in my question, FF4.0 continually hangs (Not responding) even on your website.
As noted in my question, FF4.0 continually hangs (Not responding) even on your website.