Looking for logging into the Firebase Auth Sign Up site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Firebase Auth Sign Up site. After that you can login as usual with your login credentials.
https://firebase.google.com/docs/auth/
https://firebase.google.com/products/auth/
https://medium.com/@peterekeneeze/add-firebase-authentication-to-your-app-in-7minutes-c13df58994bd
https://medium.com/mobiletech/firebase-authentication-sample-371b5940ba93
https://stackoverflow.com/questions/38357554/how-to-disable-signup-in-firebase-3-x
https://howtofirebase.com/firebase-authentication-for-web-d58aad62cf6d
https://www.androidhive.info/2016/06/android-getting-started-firebase-simple-login-registration-auth/
https://www.androidhire.com/google-login-and-registration-for-android-using-firebase/
https://github.com/firebase/firebaseui-web-react/issues/25
https://pub.dartlang.org/packages/firebase_auth
https://flutterdoc.com/mobileauthenticating-users-with-firebase-and-flutter-240c5557ac7f
https://developers.google.com/identity/
https://vueschool.io/lessons/sign-up-in-or-out-with-firebase-authentication