You can let your users authenticate using their Facebook accounts by integrating Facebook Login into your app. You can integrate Facebook Login either by using something like the Firebase SDK to carry out the sign-in flow, or by carrying out the Facebook Login flow manually and passing the resulting access token.
We attended FBF8 2014 yesterday. The highlights were 1. The Facebook Login mechanism is changing. What is the Facebook Login mechanism? When you have a Facebook App on your desktop browser in certain situations you will be prompted to login with Facebook at which...