Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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.

How do I erase all SSL certificate exceptions?

  • 1 jibu
  • 97 wana tatizo hili
  • 1 view
  • Last reply by cor-el

zwol
zwol
more options

I want to erase all certificate exceptions, that is, go back to the original default set of trusted SSL certificates. I've found the Certificate Manager and its big lists of trusted things, but I have no idea which of them ship with Firefox and which of them were added by me at some time in the past. How do I do this?

I want to erase all certificate exceptions, that is, go back to the original default set of trusted SSL certificates. I've found the Certificate Manager and its big lists of trusted things, but I have no idea which of them ship with Firefox and which of them were added by me at some time in the past. How do I do this?

Chosen solution

Rename or delete the file cert8.db in the Profile Folder to remove all intermediate certificates that Firefox has stored by visiting secure websites.

The build-in root certificates show as "Builtin Object Token" and the stored intermediate certificates as "Software Security device"

Rename or delete the file cert_override.txt (cert_override.txt.old) in the Firefox Profile Folder to remove all permanent exceptions that you have saved.

Read this answer in context 👍 6

All Replies (1)

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

Suluhisho teule

Rename or delete the file cert8.db in the Profile Folder to remove all intermediate certificates that Firefox has stored by visiting secure websites.

The build-in root certificates show as "Builtin Object Token" and the stored intermediate certificates as "Software Security device"

Rename or delete the file cert_override.txt (cert_override.txt.old) in the Firefox Profile Folder to remove all permanent exceptions that you have saved.