Firebase provides more features as described in previous post . One of the very useful feature is User Authentication. Different types of User Authentication are, Email and Password Authentication Google Plus Authentication Facebook Authentication Github Authentication In this post, I will explain the way to implement Firebase Email & Password authentication. To demonstrate how simplified and easy to use Firebase is, we will build a simple login / register (Firebase Authentication) demo. This separates sensitive user credentials from your application data, and lets you focus on the user interface and experience for your Application. It is suitable for Simple, Easy and Perfect way of handling Login, Registration, Forget Password and so on. The Feature and Settings up of Application in Application is Explained in Previous post . After creating the project, Enable Firebase Email & Password authentication by selecting Authentication in Left Pane in Firebase Console and Go to Sign-i...