Deleting Root CA Certificates from Firefox 35

This section provides a tutorial example on how to delete a certificate from Firefox 35. 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 Firefox 35.

Here is what I did on Firefox 35 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 "VeriSign Class 3 Public Primary Certification Authority - G5".

4. Click the "Delete or Distrust" button, A warning message box shows up:

Delete Root CA certificates - Firefox 35
Deleting Root CA Certificates in Firefox 35

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?

VeriSign Class 3 Public Primary Certification Authority - G5

If you delete or distrust a certificate authority (CA) certificate, 
this application will no longer trust any certificates issued by that
CA.

6. Close Firefox 35.

The "VeriSign Class 3 Public Primary Certification Authority - G5" certificate is deleted from Firefox 35 now.

Last update: 2015.

Table of Contents

 About This Book

 Introduction of PKI (Public Key Infrastructure)

 Introduction of HTTPS (Hypertext Transfer Protocol Secure)

 Using HTTPS with IE (Internet Explorer) 10

 Using HTTPS with Chrome 40

Using HTTPS with Firefox 35

 Visiting "https" Web Site with Firefox 35

 Viewing Server Certificate in Firefox 35

 Server Certificate General Information

 Viewing Server Certificate Path in Firefox 35

 Exporting Server Certificate to File in Firefox 35

 Viewing Pre-Installed Certificates in Firefox 35

 Listing of Trusted Root CA in Firefox 35

 Exporting Certificate to File from Firefox 35

Deleting Root CA Certificates from Firefox 35

 Firefox 35 Displaying Certificate Error Page

 Adding Security Exception in Firefox 35

 Failing to Import Root CA Certificates to Firefox 35

 Certificate Trust Settings in Firefox 35

 Perl Scripts Communicating with HTTPS Servers

 PHP Scripts Communicating with HTTPS Servers

 Java Programs Communicating with HTTPS Servers

 Certificate Stores and Certificate Console

 .NET Programs Communicating with HTTPS Servers

 CAcert.org - Root CA Offering Free Certificates

 PKI CA Administration - Issuing Certificates

 Digital Signature - Microsoft Word 2007

 Digital Signature - OpenOffice.org 3

 S/MIME and Email Security

 PKI (Public Key Infrastructure) Terminology

 Outdated Tutorials

 References

 PDF Printing Version