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, go to the option "Open the application menu" identified with the icon of three horizontal stripes next to the address bar, and go to "Settings."
In "Privacy and security," Security, "Certificates" click "See certificates."
In the tab "Your certificates," select the certificate and click "Delete."
Finally, confirm the deletion by clicking "OK."