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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Can't connect after reinstalling Firefox - related to Avast

  • 2 antwoorde
  • 8 hierdie probleem
  • 7 views
  • Laaste antwoord deur aviavi

more options

After reinstalling Firefox, I get "invalid security certificate....Error code: SEC_ERROR_UNKNOWN_ISSUER" messages for every web page I try to load. It is related to the Web Shield being enabled in Avast. Firefox works when Web Shield is disabled.

However, the steps Mozilla/Firefox lists here https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER to fix the problem do not work, and the functions are not even in the current version of Avast.

Not sure what to do.

After reinstalling Firefox, I get "invalid security certificate....Error code: SEC_ERROR_UNKNOWN_ISSUER" messages for every web page I try to load. It is related to the Web Shield being enabled in Avast. Firefox works when Web Shield is disabled. However, the steps Mozilla/Firefox lists here https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER to fix the problem do not work, and the functions are not even in the current version of Avast. Not sure what to do.

Gekose oplossing

Avast or any A/V program will update automatically and sometimes they will break or block sites without telling you. And since it's every page I would suspect the A/V is causing the problem. As you noted turning off Web Shield stops it so my advice find a better A/V that doesn't think it knows better then you know your web browsing habits.

Lees dié antwoord in konteks 👍 0

All Replies (2)

more options

Gekose oplossing

Avast or any A/V program will update automatically and sometimes they will break or block sites without telling you. And since it's every page I would suspect the A/V is causing the problem. As you noted turning off Web Shield stops it so my advice find a better A/V that doesn't think it knows better then you know your web browsing habits.

more options

Thanks for the reply. What I don't understand is why Avast would start doing this after reinstalling Firefox, and why other browsers are not affected. Firefox was working fine with Avast before. Now I can't even reach the Mozilla site with Firefox.