Bah, you wanna go substiture IE for Firefox because you're too lazy to secure IE so that it works at the level you want it, then go ahead, but know this, hiding from a problem is only a temporary solution and only time will tell what will happen.

Although I am in love with Firefox's tab system, I don't think endorsing a product because of your inablitiy to disable ActiveX (for starters) in IE is the right way to go. =\