Facebook Notifications from Pages

Hello,

I'm Admin of several (very active) facebook pages. Since a week or so, Mountain Lion notificaiton center started notifying me about every message posted on one of the pages which I admin. (see screenshot). I've checked settings on facebook, and disabled all notifications from pages but that doesn't help

This is obviously very annoying and since I still enjoy getting "real" facebook notifications (only coming from my own profile, not the pages I manage).

I've also checked fb notifications settings from System preferences on ML but there isn't any option besides the way the notification looks like.

Pls let me know if there's a solution to this or I'll be forced to turn off every facebook notification.

Thanks.

Lorenzo