I have a new macbook pro with mountain lion. I want to use the notification center for my Facebook/gmail, but when I'm logged into both facebook and gmail, I never get alerts.I have safari available in my notification center, but it won't work. What do I do?
When you go to Gmail in Safari 6, you should see this at the top:
That should enable alerts in Notification Center. You could also set up your Gmail in Mail.app.
On Apple's website for Mountain Lion, it says:
Facebook integration coming this fall.
So it may be a few weeks still before you can use Facebook with Notification Center.