Facebook authentication is seen in most of the applications which are used to verify the users with the help of their Facebook ID. Facebook authentication provides easy login access to users for authentication of themselves easily inside our application with the help of their Facebook id. In this video, we will be taking a look at the implementation of a feature for verifying our users using Facebook authentication. For implementing this feature of Facebook authentication we will be firstly integrating our flutter application with firebase as well as the Facebook developer console and then we will be calling Facebook authentication when the user opens the application. We will be building this application using dart as a programming language. We will be using Android studio as an IDE. This project will surely help beginner or intermediate level Android developers to brush up and enhance their Android development skills.