I have a Lenovo with Win 8 and Firefox works great.
I haven’t had any “crash” problems at all with this Computer, but my last Laptop had Vista, making my expectations much lower. LOL
My Wife and I also have Windows Phones and we love them. My old Droid is all but forgotten.
I upgraded to windows 8, it’s great thanks to installing “classic shell”, which makes the interface just like windows 7 — no metro, a start menu, etc..