Facebook has just flicked the switch on notifications via Chrome on mobile. Previously, if you wanted the social network to send you updates, you'd have to have the Facebook app installed. Now, if you browse to Facebook's site with Google's mobile browser, you'll be asked if you'd like to receive notifications (or not). At least on Android, for now. If this sounds familiar, it's because Google announced the planned feature back in Spring, only Facebook (by far and away the biggest notifier of anything?), finally added the feature this week.