In Preferences - Advanced - Encryption - View Certificates - Authorities, the "Delete or Distrust" Option appears to be inoperative (recently been hacked).
I attempted the previous steps in an effort to delete some suspicious looking certificates following unusual experiences online using WiFi without success. I "deleted" a number of different certificates and then selected "ok" only to see them all reappear again, and again. since experiencing a recent hacking event, I have also enacted a number of other steps involving our WiFi, Computer, and e-mail provider in addition to the Firefox Browser. Any thoughts?
Additional System Details
- Shockwave Flash 11.6 r602
- The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
- User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:19.0) Gecko/20100101 Firefox/19.0
You can't remove build-in root certificates.
You can only remove the trust bits to prevent Firefox from using the certificate as root certificate and that is what Firefox does in such a case.
You can verify that by clicking the Edit button.