I've never had a problem with Firefox before (although I've had trouble with flash player). When I was notified a few days ago that the upgrade to 3.6.11 was available I downloaded it, or thought I did. Now I recall seeing a message several times of an unknown software error, but I didn't copy down the error number, didn't know what software had the problem, and ignored it because I wasn't having any problem that I was aware of. Then I received a message to upgrade to 3.6.11 again, and when I did, it stopped the upgrade at 95% and said "The update could not be installed (patch apply failed). You can update Firefox manually by visiting this link and downloading the latest version: http.www.firefox.com". This works to 95% and then gets a message saying "access denied". I dread the thought of uninstalling and reinstalling Firefox. If so, will everything be lost?