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.

How do I reset Firefox if I am not able to open the application after ending it on the task manager?

  • 2 replies
  • 1 has this problem
  • 104 views
  • Last reply by cor-el

cweeden
cweeden
more options

We changed the privacy options on firefox, closed the program, and now we are not able to open it. We have ended the process on the task manager, but it still will not open. We tried to uninstall it but it won't even let us do that. I've read lots of articles on how to reset firefox, but it isn't helpful when i can't get into firefox to try it.

We changed the privacy options on firefox, closed the program, and now we are not able to open it. We have ended the process on the task manager, but it still will not open. We tried to uninstall it but it won't even let us do that. I've read lots of articles on how to reset firefox, but it isn't helpful when i can't get into firefox to try it.

All Replies (2)

ideato
ideato
more options

Hello cweeden, privacy options doesn't do that, check firewall and your security software, maybe block firefox access.


thank you

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

See:

You can use one of these to start Firefox in Safe mode:

  • On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
  • On Mac, hold down the Options key while starting Firefox
  • Help > Restart with Add-ons Disabled

Can you bring up the Profile Manager to create a new profile?