Sometimes when I open the websites I'm already logged in to, like Gmail, YouTube, Favebook, etc - it gives me a login screen instead. After I refresh a couple of times (could be up to 10 times sometimes) - I'm still logged in, but for some reason FireFox doesn't see those cookies or something.. it's very frustrating It's been happening for over a month now, and updating didn't help, it's super annoying.