MDM
Very Senior Member
Yep, and no need to reset, just delete cert8.db and key3.db (or cert9.db and key4.db depending of the version) files in AppData\Roaming\Waterfox\Profiles\ and that should do it.@jata. Happend to me several times and it was always related to Firefox. Other browsers did just work. After resetting Firefox I could log-on normally again. I just think it has something to do with SSL en verifying certificates.