Of course people are still using IE. nIt's not like FF rules the world or something, sadly that's still Microsoft Dx (for the internet mostly I mean XD).
I have to say that I'm glad I switched to FF because of Subeta, only using IE for a few things now like Favourites and such.
But there's one thing I would not recommand ANYONE to use and that's Chrome :x If people want to do it I won't stop them, but I really don't want to give Google ANY information at all <_<
I use chrome as a backup browser. My firefox is currently cluttered with around 100 or so tabs of Tv Tropes (good lord that site is addicting) , and I severely dislike using IE because it tends to freeze up on my computer whenever I just try and open it. Yes, Google will rule the word someday, but but their browser isn't that bad.