I recently had to change firewalls when Comodo put out a new version and I couldn't get it to work on my pc. So I went with ZoneAlarm. That was several days ago, and I was having no problems posting on Facebook at the time. Even after installing ZoneAlarm, for a couple of days--no problems posting on FB. But now, I can read everything someone says on FB, but if I type in a comment and press the comment button, nothing happens. I can't "share" anything either. I'm suspecting it has to do with my computer because no one else seems to be having this trouble. Maybe it's a good thing I can't post on FB. But I'd like to know why. If you have any ideas as to why this is happening, and what to do about it, let me know.