We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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.

Deleting an imported certificate does not work

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

mclaassen
mclaassen
more options

I imported an SSL certificate, which accidentally was categorized by Firefox as a security device certificate. And, although Firefox lets me delete it from the "Certificate Manager", it doesn't actually delete it. It looks as though it is deleted, but closing the certificate manager and then re-opening it, shows that it is still there.

I imported an SSL certificate, which accidentally was categorized by Firefox as a security device certificate. And, although Firefox lets me delete it from the "Certificate Manager", it doesn't actually delete it. It looks as though it is deleted, but closing the certificate manager and then re-opening it, shows that it is still there.

All Replies (2)

FredMcD
FredMcD
more options

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

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

Try to rename/remove the cert8.db file in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.