I came home yesterday to find that automatic upgrade had installed FF4 to my system. It was a disaster, none of my plug stuff worked and my bookmarks and other lists were gone. I spent hours getting FF3 back working, and have managed to restore most of my lists but some seem lost forever. I had been saying no manually to the FF4 upgrade since I knew that my plug ins would not work but this happened anyway. Bottom line, I want this to never happen again so how do I stop automatic upgrades? I have been reminded twice already this morning that FF4 is waiting for me again and I DON'T WANT IT!!! Personally until the issues with FF4 are resolved I think you should take it down. Bad upgrade!