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Firefox locks up when trying to open options or perform downloads

  • 5 replies
  • 1 has this problem
  • 19 views
  • Last reply by ILv2Xlr8

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FireFox locks up when I try to open options or perform downloads. The program stops responding. No crash is recorded and unable to diagnose cause. Have attempted clean installs on any of the 3 drives on my system and get the same results even in safe mode. How do it get Firefox to work on my Windows 7 64bit PC?

FireFox locks up when I try to open options or perform downloads. The program stops responding. No crash is recorded and unable to diagnose cause. Have attempted clean installs on any of the 3 drives on my system and get the same results even in safe mode. How do it get Firefox to work on my Windows 7 64bit PC?

All Replies (5)

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Yes. I created new profile and still have the same issue.

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Start Firefox in Safe Mode {web Link} by holding down the <Shift>
(Mac=Options)
key, and then starting Firefox. Is the problem still there?

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Do a clean reinstall of the current Firefox release and delete the Firefox program folder before installing a fresh copy of the current Firefox release.

If possible uninstall your current Firefox version to cleanup the Windows Registry and settings in security software.

  • Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your personal data like bookmarks is stored in the Firefox profile folder, so you won't lose personal data when you uninstall and reinstall or update Firefox, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.

If you keep having problems then create a new profile to test if your current profile is causing the problem.


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Still have this issue with firefox locking up. I've tried all the suggestions including new profiles, clean installs after completely wiping my machine of anything related to mozilla, and restarting with plugins disabled.

Very frustrating as it was working fine before and I assume some MS update killed it.