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.

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

firefox still trusts deleted certificate

  • 1 reply
  • 1 has this problem
  • 12 views
  • Last reply by James

more options

Basic Infomation

Firefox Version: 72.0.1

Operating System: Windows 10

Step to reproduce

  1. create a self-signed CA certificate and server certificate for localhost;
  2. create a server which serve https service with certificate and key above;
  3. request localhost, Firefox would warn that connection is not secure, which is ok;
  4. install CA certificate to Firefox certificates store and restart Firefox;
  5. request localhost again, and Firefox trusts server's certificate, ok;
  6. delete the self-signed root CA certificate we installed just now;
  7. restart Firefox, and request localhost, Firefox still treats connection as a secure connection.

Expectation

Firefox do not trust localhost server's certificate any more.

What I see instead

Firefox still trust a server certificate signed by a CA whose certificate is deleted from Firefox's trust authorities.


Is this a cache policy which works as expectation? I wonder if there is anything I did wrong, or do I have some misunderstanding about Firefox's certificate policy.# Numbered list item

'''Basic Infomation''' Firefox Version: 72.0.1 Operating System: Windows 10 '''Step to reproduce''' # create a self-signed CA certificate and server certificate for localhost; # create a server which serve https service with certificate and key above; # request localhost, Firefox would warn that connection is not secure, which is ok; # install CA certificate to Firefox certificates store and restart Firefox; # request localhost again, and Firefox trusts server's certificate, ok; # delete the self-signed root CA certificate we installed just now; # restart Firefox, and request localhost, Firefox still treats connection as a secure connection. '''Expectation''' Firefox do not trust localhost server's certificate any more. '''What I see instead''' Firefox still trust a server certificate signed by a CA whose certificate is deleted from Firefox's trust authorities. ----------------------------------------------------------------------- Is this a cache policy which works as expectation? I wonder if there is anything I did wrong, or do I have some misunderstanding about Firefox's certificate policy.# Numbered list item

Modified by James

All Replies (1)

more options

deleted

Modified by James