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 crashes

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by philipp

cowrustler
cowrustler
more options

The Firefox start page comes up fine but when I try to go to another website I get a massage that the site is not secure. This applies to all sites. I have Google available and I can go there to view all these sites but Firefox has all my bookmarks, etc and is much handier-- if it works. I've re-booted the computer as well as the 4G hotspot so this isn't the problem.

The Firefox start page comes up fine but when I try to go to another website I get a massage that the site is not secure. This applies to all sites. I have Google available and I can go there to view all these sites but Firefox has all my bookmarks, etc and is much handier-- if it works. I've re-booted the computer as well as the 4G hotspot so this isn't the problem.

All Replies (1)

philipp
philipp
  • Moderator
more options

hi, this is likely your avast/avg security software tampering with encrypted connections. please either try to reinstall your security software or else follow the more specific steps for it at How to troubleshoot security error codes on secure websites.