Firefox has effective popup blocking, tabs (once you've used them you'll never go back), a nicer interface, more regular updates, fewer security holes, and it is actually faster than IE, especially if you're on a broadband connection and you know what you're doing.
Also, a whacky mouse and stability problems in Firefox? How long was it since you tried it? I haven't had problems since I started at 0.8 (it's 1.0.7 now), but it's worth trying again if you haven't tried in the last couple of weeks (there was an update recently).
Sentynel - Head Ninja, Admin, Keeper of the Ban Afrit, Official Forum Graphics Guy, and forum code debugger.
A still more glorious dawn awaits, not a sunrise, but a galaxy rise, a morning filled with 400 billion suns - the rising of the Milky Way