If you don't use any firefox plugins try Opera.
You can import your bookmarks and everything.
For me whenever Firefox 4 betas freeze... I go to task bar and end the process named plugin-container. Ironically the thing that makes it so the browser doesn't crash when a flash player crashes is the thing that causes my firefox to crash. :lol:
Firefox is a memory hog thats what it is. windows 7 + fire fox = death to my 1GB ram pc. :/ when i run firefox i only have about 20 - 10 % my pc's memory is spared.
I've been trying Opera and it seems a lot quicker than FF, I'm reasonably impressed with it so far apart from 1 or 2 niggles