Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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.

(Error code: sec_error_unknown_issuer) on all sites

  • 1 reply
  • 1 has this problem
  • 17 views
  • Last reply by Tzmndvl

Tzmndvl
Tzmndvl
more options

I am getting the 'This Connection is Untrusted' page with this error message, (Error code: sec_error_unknown_issuer), on ALL of my regular websites when I go to log-in.

I am getting the 'This Connection is Untrusted' page with this error message, (Error code: sec_error_unknown_issuer), on ALL of my regular websites when I go to log-in.

Chosen solution

For reference to anyone in the future who might have this problem - I am using BitDefender security software and had to turn off the 'Scan SSL' option under the privacy settings to fix the issue.

Read this answer in context 👍 0

All Replies (1)

Tzmndvl
Tzmndvl Question owner
more options

Chosen Solution

For reference to anyone in the future who might have this problem - I am using BitDefender security software and had to turn off the 'Scan SSL' option under the privacy settings to fix the issue.

Modified by Tzmndvl