I’ve mentioned the ZoneAlarm Windows personal firewall to people in the past, so I feel honor-bound to pass this report on. I have no first-hand experience with ZoneAlarm, so I can’t say for sure if this is real. But if you use ZoneAlarm (or have used it in the past) and you start having problems with Mozilla Firefox, you might want to follow the post’s instructions for fixing the problem.
(Seen via Dean Esmay.)