Plesk

Firefox Error accessing plesk

Invald SSL

Rename or delete the file cert8.db in the Profile Folder to remove all intermediate certificates that Firefox has stored by visiting secure websites.

The build-in root certificates show as “Builtin Object Token” and the stored intermediate certificates as “Software Security device”

Rename or delete the file cert_override.txt (cert_override.txt.old) in the Firefox Profile Folder to remove all permanent exceptions that you have saved.