facebook notification bar?

[largelock448]

1. This might be due to your browser mate. Try opening his facebook on different browser. As I can see, currently you're using Chrome. Try Internet Explorer, or Firefox. If on other browsers his facebook becomes normal, then the problem is with your add ons. Uninstall the add on which is creating this problem. Or else, uninstall chrome itself, and reinstall fresh.

2. If the problem persists, then your friend has installed some facebook apps from his account. You need to go to facebook's app center. (Left side of facebook, see the pic, did you find? In the pic, it is written '9' in front of app center...)

Simply uninstall the facebook app which is causing the problem, and you're good to go