I have run into what I hope is a false positive. I updated Firefox from 3.5.4 to 3.5.5 earlier this evening without any problems. I browsed some of my regular websites and then logged out for a few hours. I later went to use Firefox again and was suprised to see an "Active Threat Alert" popup from Prevx. It listed the file firefox.exe in the normal Firefox installation directory with an option to click for details. When clicked the main Prevx window opened and initiated a scan. The scan, which took much longer than usual, ended with "System Status: Clean". I am still greeted with the alert any time I attempt to start Firefox. Do I have a botched/hacked Firefox upgrade or is this a false postive? Thanks in advance for any help you can provide EDIT: I realize that all possible FP reports should be sent to firstname.lastname@example.org but I am unable to obtain a scan log because the scan always reports "System Status: Clean.