How can I add my Facebook friends to my Battle.net contacts in Diablo III?

In Starcraft II you can have it flip through your Facebook friends and add people that have the game to your Battle.net friends list. How do you do this in Diablo III?

Diablo 3 hasn't implemented it yet. But if you have Starcraft 2, go on that and browse your facebook friends, add them, and when they accept it will show up on your Diablo 3 friends list.

There's no way to browse your Facebook friendlist in Diablo 3. You have to add them manually via their email-address or battle-tag: Click on the friend list button to the lower right, then click on "add friend" and type in your friends data.