How to delete an electronic certificate
Skip information indexWindows. How to delete an electronic certificate in Mozilla Firefox
To delete a certificate from the Mozilla Firefox certificate store, access the "Open the application menu" option identified with the three horizontal stripes icon next to the address bar, and enter "Settings".
In "Privacy and security", "Security", "Certificates" click "View certificates".
In the "Your certificates" tab, select the certificate and press "Delete."
Finally confirm the deletion by clicking "Accept".