Hey Eric,
If it's your ad blocker or spyware blocker, then that's definitely a problem, since Firefox doesn't contain anything like that.
Besides, if you switched to using Firefox 100% of the time, you wouldn't need an ad blocker (just use the
Adblock extension with a good
filterset) OR a spyware blocker, because virtually all spyware you encounter on websites is designed to infect your PC through Internet Explorer, thus, Firefox is safer (it also makes you whitelist sites you trust, so spyware wouldn't be able to install unless you enabled it to do so)
I hope you can get it figured out and enjoy the fruits of Firefox soon. ^_^ The people at
MozillaZine can help if you have no success fixing it.
As for me, John, I'm an avid Firefox user and promote it when I can. I only use IE for Windows Update, since there is no choice in that matter. I don't hate IE, I'm just tired of the problems that come along with it. Firefox is highly customizable, constantly evolving (not stagnating like IE), extensible, oh and has a high coolness/geek factor.
The only weak part of Firefox for me is actually not a part of Firefox itself, but the update.mozilla.org website, which is where you can get new extensions. It still isn't working properly and the Mozilla team has been pretty slow about getting it functioning as it should. In the meantime, new extension news can be found at the mozillazine forums and
The Extensions Mirror.
PS Plane Sailing, yes the Popup ALT Attribute Extension is a must-have if you read vBulletin forums like Enworld.

I respect Firefox's minimalistic philosophy but I wish little things like that would be added into the browser itself, since IE can do it out-of-the-box