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

fire fox will not open and there are no popup error messages

  • 2 replies
  • 1 has this problem
  • 4 views
  • Last reply by FredMcD

more options

I tried to open firefox this morning and it does nothing. I uninstalled and re-installed and it still does Nothing. None of you won't start solutions are working. I can't move my bookmarks cause I can't open firefox. I only use firefox - so what's next for me???

I tried to open firefox this morning and it does nothing. I uninstalled and re-installed and it still does Nothing. None of you won't start solutions are working. I can't move my bookmarks cause I can't open firefox. I only use firefox - so what's next for me???

All Replies (2)

more options

Hello marieperry, try to boot the computer in Windows Safe Mode with network support(press F8 on the boot screen) and then see if that allows to start firefox.

thank you

more options

Some problems occurs when your Internet security program was set to trust the previous version of Firefox, but no longer recognizes your updated version as trusted. Now how to fix the problem: To allow Firefox to connect to the Internet again;

  • Make sure your Internet security software is up-to-date (i.e. you are running the latest version).
  • Remove Firefox from your program's list of trusted or recognized programs. For detailed instructions, see

Configure firewalls so that Firefox can access the Internet. {web link}