For some reason, this forum no longer gives me any formatting options and only allows to reply to a post in a new page again without formatting options and without seeing past posts. And the Alerts no longer pop up. All of this only happens on Firefox. Both Chrome and IE still work properly. Resetting my computer did no good.
Update to newest version of Firefox should fix problem. I run Firefox 18 on my desktop with Fedora 18 and it works fine. That being said, running Firefox on Windows or OS X is kind of like putting a Toyota Tundra motor in a Ford F350.
RLM, I read something about Firefox disabling "plugins" because of a security vulnerability. Perhaps that has something to do with the problem you're experiencing. I use Safari and haven't had any problems.
Firefox tells me when it cannot update a plugin and the only time I have seen that is during an update. That last happened 2 weeks ago.