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.

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

Firefox will not close or respond, is grayed out and will not allow my computer to restart. I've tried uninstalling but Firefox is running so can't. Help!

  • 3 replies
  • 1 has this problem
  • 16 views
  • Last reply by FredMcD

more options

Firefox was left open. Macbook Air went to sleep. When awakened Firefox was grayed out and not responsive. No dialog boxes or errors have appeared. I cannot quit, force quite or uninstall Firefox. I cannot restart my computer because Firefox cancels it. What do I do???

Firefox was left open. Macbook Air went to sleep. When awakened Firefox was grayed out and not responsive. No dialog boxes or errors have appeared. I cannot quit, force quite or uninstall Firefox. I cannot restart my computer because Firefox cancels it. What do I do???

All Replies (3)

more options

Have you tried re-booting the computer?

more options

Yes. I can't restart because Firefox won't close.

more options