The only time I'd use it would be to do Windows Update. (I have an XP-SP2 laptop.)
I thought I read it's good (or doesn't hurt) to set everything in IE to high security settings if you're not using it. (And I seem to recall there were some custom settings it was best to do...?)
So I was wondering what those settings were and what the best way to set IE security is if I'm only using Firefox...?
(I guess I'd need to change the settings each time I do Windows Update though, right? Then put them back to the high settings?)