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.

Firefox only runs in Safe Mode of Windows 7. Why? How to fix it?

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

benko103
benko103
more options

Windows 7, Home Premium Service Pack 1. Firefox was working fine on up to September 28, 2015. But starting on September 29, 2015 it would not start at all in normal Windows 7 mode. It still works fine in Windows 7 Safe Mode. How can I fix this?

Windows 7, Home Premium Service Pack 1. Firefox was working fine on up to September 28, 2015. But starting on September 29, 2015 it would not start at all in normal Windows 7 mode. It still works fine in Windows 7 Safe Mode. How can I fix this?

All Replies (2)

Scribe
Scribe
more options

Hi, since it is OK in Safe Mode, the problem is most likely caused by an extension, theme or hardware acceleration. So please see this article - Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.

If your question is resolved by this or another answer, please take a minute to let us know. Thank you.

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

It is possible that your firewall or other security software blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.

Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full, unrestricted, access to install for Firefox and the plugin-container process and the updater process.

See: