After installing Firefox 4, I've had nothing but problems. Sometimes websites load, then next time they can't connect. I've tried a number of solutions, nothing is working. Hotmail can't connect, weather.com won't load correctly. All updates are done, I've uninstalled and reinstalled it a few times. I'm using an imac all up to date. If I switch to Safari now, the same pages won't load there either. None of this happened until I updated Firefox. However, there were a couple of websites like ehow.com and woot that always gave me issues, but now if I click on a link it typically won't take me to the new page. It has also crashed twice tonight. I have no anti-virus anymore after deleting iantivirus last week.