This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Problems uninstalling Mozilla Firefox

jshinnnh
jshinnnh
more options

My firefox is corrupted. I have run anti-virus programs. I want to delete my current version and re-install the latest verion.

Remove for the control panel / add remove programs does not work.

I have also gone to the helper.exe file under C:\Program Files\Mozilla Firefox\uninstall\helper.exe That brings up an emptly black DOS prompt box that flashes for about a second, then disappears. Nothing else happens.

My firefox is corrupted. I have run anti-virus programs. I want to delete my current version and re-install the latest verion. Remove for the control panel / add remove programs does not work. I have also gone to the helper.exe file under C:\Program Files\Mozilla Firefox\uninstall\helper.exe That brings up an emptly black DOS prompt box that flashes for about a second, then disappears. Nothing else happens.

All Replies (7)

user633449
user633449
more options

Try doing the following:

Download Firefox 16.0.1 from www.getfirefox.com, then just install if over your current Firefox install. Restart your PC, then try to open Firefox. If you still are having trouble, describe it and I might be able to help you.

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

How do you know Firefox is corrupted? Can you start it up at all? To try starting in Firefox's safe mode, hold the shift key when double-clicking the Firefox icon. If that works, open

Help > Troubleshooting Information

and look for the Reset Firefox feature. This will generate a new settings folder and archive your old folder to the desktop. More info on this feature: Refresh Firefox - reset add-ons and settings.

If you cannot start Firefox even in Safe Mode, try reinstalling Firefox over your existing installation to refresh the program files. You can download from:

https://www.mozilla.org/en-US/firefox/fx/#desktop

Then try the above Safe Mode + Reset again.

dionne1070
dionne1070
more options

I cannot uninstall Firefox either! When I click uninstall from the control panel nothing happens at all and Firefox remains!!! Highly upset about this. I do not want to try to fix it or to download another version of it I just want it gone !!!!!

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi dionne1070, did you also try the "helper.exe" program? Depending on your system, it's usually one of these two places:

C:\Program Files\Mozilla Firefox\uninstall
C:\Program Files (x86)\Mozilla Firefox\uninstall

If you think it's possible that Firefox might still be running, make sure it is fully shut down. You can do that using the Windows Task Manager (Ctrl+Shift+Esc) Processes tab. Look for firefox.exe and if you find it, select it and click End Process. Then try the uninstaller again.

Any luck?

dionne1070
dionne1070
more options

Yes, I tried that also and made sure Firefox was not still running but did not work, firefox is still here and does not seem to want to go away...........

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can remove the Firefox installation program folder manually if the uninstaller isn't working.

mozillahasgone2thedarkside
mozillahasgone2thedarkside
more options

ok cor-el i calmed down & read ur first link carefully. thx.

Modified by mozillahasgone2thedarkside