Firebase Auth/unauthorized domain. Domain is not authorized

Question

I am trying to run this sample firebase project, but I keep getting this error in the browser console.

Lf {code: "auth/unauthorized-domain", message: "This domain (mail-demo-fcm.firebaseapp.com) is not…se console -> Auth section -> Sign in method tab."}

code: "auth/unauthorized-domain"

message: "This domain (mail-demo-fcm.firebaseapp.com) is not authorized to run this operation. Add it to the OAuth redirect domains list in the Firebase console -> Auth section -> Sign in method tab."

I have enabled Google in Authentication -> Sign-in Method as sign-in providers.

Am I missing something?

A little guide will be helpful.

And I am using Firebase's free plan.

Answer 1

You need to add domain mail-demo-fcm.firebaseapp.com to Authentication menu in Firebase at Authorized domains

Answer 2

Below the sign-in method section, there is a Authorized domains section. I think you need to whitelist your domain there.

Answer 3

@alkas 的解决方案很有帮助，但我还需要为我的应用程序（电子邮件/密码、谷歌等）明确启用登录提供程序，以消除此错误

Answer 4

Enable localhost and your own domain that you are using in the firebase console.

1. Login into firebase
2. Click on the authentication tab
3. Add authorized domains

Answer 5

In my case, I found the problem after deleting localhost from my "Authorized domains".

So I just add it (localhost), so everything is okay !

-localhost, because I'm on local,

-project_name.firebase.com and project_name.web.app when app deployed. Thanks !

Answer 6

The authorized domains section might also be in the settings page. Here is a screenshot:

Answer 7

1. Open Firebase
2. Go to console
3. Open your project
4. Go to Authentication
5. sign-in-method
6. Add domain

Try it!

In my case it's working

Answer 8

If localhost is already in the list of domains, make sure you're accessing your test app via http://localhost/ and not http://127.0.0.1/