Oh great, so if I stumble on a page so full of crap that I decide to backtrack the hell away, the site can still shove notifications in my face, even though I clearly don't want that content? Yeah, I have to explicitly allow it, that's awfully nice of them. But how long will opting out last when the advertisers realize they can force a few more eyeballs?
Is there another browser out there that hasn't been bloated to death with "features"? I jumped from Firefox to Chrome when they started churning versions, but Chrome just jumped the shark by doing the same thing.