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.

getting sec_error_unknown_issuer while opening gmail. What to do?

  • 1 reply
  • 2 have this problem
  • 9 views
  • Last reply by cor-el

amitniraj
amitniraj
more options

While opening Gmail on firefox, I am not able to open it as I am getting Untrusted Connection with an error message "sec_error_unknown_issuer". There is no option to add exception also. What to do? I am able to open gmail on other websites .

While opening Gmail on firefox, I am not able to open it as I am getting Untrusted Connection with an error message "sec_error_unknown_issuer". There is no option to add exception also. What to do? I am able to open gmail on other websites .

All Replies (1)

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

Open this chrome URI by pasting or typing this URI in the location/address bar to open the "Add Security Exception" window and check the certificate:

  • chrome://pippki/content/exceptionDialog.xul

In the location field type/paste the URL of the website

  • retrieve the certificate via the "Get certificate" button
  • inspect the certificate via the "View..." button to see the issuer