OS X Mountain Lion Notification Center not working.?

[dr1115]

I know for like Mail and twitter you have to have them on background for notifications to show but I have the facebook integration and none of my facebook notifications show up in the Notification center. I will go to facebook though and have new messages and requests and notifications. My mail has worked and my calendar and reminders have been working but I've yet to see any facebook or twitter notifications.
Yes they show up in both the System preferences > Notifications ; system preferences > security and privacy > privacy only thing is next to them in privacy they say "Apps that have requested access to (Facebook/Twitter) will appear here."

[Pedro Apeles]

The same problem here. It doesn't work at all. i have checked All the facebook settings and they are okay. But it still doesn't work.

[Duncan]

Have you entered your User Name and Password at

System Preferences > Mail, Contacts & Calendars > Facebook/Twitter

They should then show up in

System Preferences > Notifications

and

System Preferences > Security & Privacy > Privacy