This feature supports the ability to configure a Publish website so that it uses Facebook to handle comments on articles.
This can increase traffic from the social network of the person posting or the Facebook page associated with your publication.
Go to: Settings>>General Site Settings
Scroll to Facebook Settings
Follow the steps to acquire an App ID
Enter your: Facebook App ID / API Key
Enter your: Facebook Secret Key
'Check' Use Facebook comments by default
Follow the steps to moderate comments
This will be the result per article for visitors who are logged in to Facebook.
Visitors who are not logged in to Facebook will see this
Clicking 'Comment' will prompt a login dialogue box.
Note: Facebook commenting is not compatible with the Most Commented element: