sometimes when i am browsing through my email in yahoo ( i use the classic version, not the yahoo beta ), or other websites, when i go to change a page or some other function on the site, firefox 4 registers as not responding and freezes up. i love this browser but, i was concerned that it possibly could be corrupted so, i uninstalled it. i run a dell dimension l1000r, windows xp ser pk 3. at the times that this has happened, i only had explorer 8 and firefox 4 as web browsers. i had 1 theme, ghostery, and flagfox, and language translation add ons in my firefox 4 browser, which i downloaded from your in browser manager. help, i want my firefox 4 back!!