I'm having pretty much everything crash on iPad using iOS 5. Any browser, FB, etc. I rarely had this problem before the upgrade. It's really making me angry. It seems to be a RAM problem. I've installed two different apps to clear RAM, but of course it closes any opened apps. Videos seem to be especially irksome, presumably because they require lots of RAM which is getting clogged with cache. If I peruse a few hours of postings in FB and then click on a vid (or sometimes just an image), it'll crash and I'll need to clear RAM before starting again.
I'm not a fan of iOS 5.
This is when my problem started to was with the iOS 5 upgrade. I was stupid enough to upgrade my moms also and now she has the same problem. Mine is one and hers is an iPad 2. Come on Apple get it together and get this fixed!