Hello Everybody!

A Custom Audience is an ad targeting option that lets advertisers find their existing audiences among people who are on Facebook or Twitter.
Skytells PM's Audiences Manager is good for extracting emails from all kind of websites and particularly Facebook. Both keyword or direct URL would build an accurate email list. This is the right tool to get email addresses. Facebook or not.

It's able to Analyze all required information about Facebook user.

It will be released soon!