Sorry to hear about the crashes. If you are getting the Mozilla Crash Reporter form, your Firefox may have logged some data that would help track down the cause of the problem. You can submit that data to Mozilla and share it with forum volunteers to see whether it points to the solution. Please check the support article "[[Firefox crashes - asking for support]]" for steps to get those crash report IDs from the about:crashes page (or from a folder on disk), and then post some of the recent ones here. ---- Meanwhile, let me mention something that is "going around" in case you have this problem, too: Firefox is crashing within seconds of startup if you have either of the Applian Technologies programs Freecorder or Replay Media Catcher in combination with Norton security software (and possibly some other security software). If you have either of those Applian programs and it isn't essential, try uninstalling it and then restarting Windows to ensure that none of its components are left running. Will Firefox start normally after that? (If you prefer not to uninstall the program, another user said he used msconfig to prevent FlvSrvc.exe from running at startup and that fixed it. See: [https://support.mozilla.org/questions/1086722#answer-789197]) ---- If it's not that, could you try starting in Firefox's Safe Mode: ''If Firefox is not running:'' Hold down the Shift key when starting Firefox. ''If Firefox is running:'' You can restart Firefox in Safe Mode using either: * "3-bar" menu button > "?" button > Restart with Add-ons Disabled * Help menu > Restart with Add-ons Disabled and OK the restart. ''Both scenarios:'' A small dialog should appear. Click "Start in Safe Mode" (''not'' Refresh). Any less crashy in Safe Mode?