PKI Tutorials - Herong's Tutorial Examples - v2.32, by Herong Yang
Deleting Root CA Certificates from Mozilla Firefox
This section provides a tutorial example on how to delete a certificate from Mozilla Firefox. Deleted certificate can be re-installed back from a certificate file.
As you can see from the previous tutorial, the list of trusted root CA certificates in Firefox is quite long. It contains many root CA certificates you are probably never going to use them. If you want to, you can delete root CA certificates that are not needed from Mozilla Firefox.
Here is what I did on Mozilla Firefox to delete the "VeriSign Class 3 Public Primary Certification Authority - G5" certificate, which is actually needed to validate the login.yahoo.com certificate. But I can delete it, because I have exported it to a file already.
1. Repeat steps listed in the previous tutorial until you see the Certificate Manager dialog box.
2. Go to the Authorities tab and select "DigiCert High Assurance EV Root CA".
3. Click the "Delete or Distrust" button, A warning message box shows up:
5. Read the warning message and click "OK":
You have requested to delete these CA certificates. For built-in certificates all trust will be removed, which has the same effect. Are you sure you want to delete or distrust? DigiCert High Assurance EV Root CA If you delete or distrust a certificate authority (CA) certificate, this application will no longer trust any certificates issued by that CA.
6. Close Mozilla Firefox.
The "VeriSign Class 3 Public Primary Certification Authority - G5" certificate is deleted from Mozilla Firefox now.
Table of Contents
Introduction of PKI (Public Key Infrastructure)
Introduction of HTTPS (Hypertext Transfer Protocol Secure)
Using HTTPS with Google Chrome
►Using HTTPS with Mozilla Firefox
Visiting "https" Website with Mozilla Firefox
Viewing Server Certificate in Mozilla Firefox
Server Certificate General Information
Viewing Server Certificate Path in Mozilla Firefox
Exporting Server Certificate to File in Mozilla Firefox
Viewing Pre-Installed Certificates in Mozilla Firefox
Listing of Trusted Root CA in Mozilla Firefox
Exporting Certificate to File from Mozilla Firefox
►Deleting Root CA Certificates from Mozilla Firefox
Mozilla Firefox Displaying Certificate Error Page
Adding Security Exception in Mozilla Firefox
Failing to Import Root CA Certificates to Mozilla Firefox
Certificate Trust Settings in Mozilla Firefox
HTTPS with IE (Internet Explorer)
Android and Server Certificate
Windows Certificate Stores and Console
RDP (Remote Desktop Protocol) and Server Certificate
macOS Certificate Stores and Keychain Access
Perl Scripts Communicating with HTTPS Servers
PHP Scripts Communicating with HTTPS Servers
Java Programs Communicating with HTTPS Servers
.NET Programs Communicating with HTTPS Servers
CAcert.org - Root CA Offering Free Certificates
PKI CA Administration - Issuing Certificates
Comodo Free Personal Certificate
Digital Signature - Microsoft Word
Digital Signature - OpenOffice.org 3