Looking for logging into the Firebase Without Popup 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 Without Popup site. After that you can login as usual with your login credentials.
https://stackoverflow.com/questions/48374512/i-want-to-use-firebase-signinwithcredential-without-popup
https://firebase.google.com/docs/auth/web/google-signin
https://github.com/google/google-api-javascript-client/issues/288
https://github.com/firebase/firebase-js-sdk/issues/63
https://howtofirebase.com/firebase-authentication-for-web-d58aad62cf6d
https://www.oreilly.com/ideas/implement-oauth0-in-15-minutes-with-firebase
https://boostlog.io/@dulaham/google-login-with-firebase-5af1474447018500491f450a
https://boostlog.io/@dulaham/facebook-login-using-firebase-5af1442347018500491f44ff
https://forum.ionicframework.com/t/firebase-firebase-auth-signinwithpopup/91476
https://medium.com/@anas.mammeri/vue-2-firebase-how-to-add-firebase-social-sign-in-into-your-vue-application-21f341bbf1b
https://dev.to/aurelkurtula/introduction-to-authentication-with-firebase-bkd
https://medium.freecodecamp.org/how-to-develop-a-great-facebook-login-flow-with-firebase-and-ionic-656a295c4fe9
https://angular-templates.io/tutorials/about/firebase-authentication-with-angular