Yahoo Mail provides a way for you to examine your e-mail while using Facebook. This provides you the comfort of not having to leave the social media site. Using Yahoo Mail's main Facebook page, use the provided "App" function to access your mail. You just should be logged in to Facebook to benefit from it.
Yahoo Mail Sign In With Facebook
Accessibility to yahoo.com
So right here we start
Action 1: Most likely to yahoo.com
Step 2: check in on http://login.yahoo.com using your facebook account.
Step 3: After effective login. Click "import calls from facebook" and you're done. You will get your whole facebook buddy's actual email address there.
you could search that list to obtain your desired good friend's actual email address.
I wish this article can aid you and can be an overview for you when creating an account at Yahoo.