Debug Your Infrastructure

Get Instant Solutions for Kubernetes, Databases, Docker and more

AWS CloudWatch
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Pod Stuck in CrashLoopBackOff
Database connection timeout
Docker Container won't Start
Kubernetes ingress not working
Redis connection refused
CI/CD pipeline failing

Firebase Auth The app is not authorized to use Firebase Authentication.

The app's configuration in the Firebase console is incorrect or incomplete.

Understanding Firebase Auth

Firebase Authentication is a comprehensive tool provided by Google Firebase that allows developers to easily integrate user authentication into their applications. It supports various authentication methods, including email and password, phone authentication, and federated identity providers like Google, Facebook, and Twitter. The primary purpose of Firebase Auth is to simplify the process of managing user identities and securing user data.

Identifying the Symptom

When using Firebase Authentication, you might encounter the error code auth/app-not-authorized. This error typically manifests when your application attempts to access Firebase Authentication services but is not properly authorized to do so. The error message might read: "This app is not authorized to use Firebase Authentication."

Explaining the Issue

What Does auth/app-not-authorized Mean?

The auth/app-not-authorized error indicates that the Firebase project settings are not correctly configured to allow your app to use Firebase Authentication. This could be due to several reasons, such as incorrect API key usage, misconfigured OAuth credentials, or missing app identifiers in the Firebase console.

Common Causes

  • The app's package name or bundle ID is not registered in the Firebase console.
  • The API key used in the app does not match the one in the Firebase project.
  • OAuth redirect URIs are not correctly set up.

Steps to Fix the Issue

Verify App Configuration in Firebase Console

To resolve the auth/app-not-authorized error, follow these steps:

  1. Log in to the Firebase Console.
  2. Select your project from the list of projects.
  3. Navigate to Project Settings by clicking on the gear icon next to Project Overview.
  4. Under the Your Apps section, ensure that your app's package name (for Android) or bundle ID (for iOS) is correctly listed. If not, add your app by clicking Add App.

Check API Key Configuration

Ensure that the API key used in your app matches the one configured in the Firebase console:

  1. In the Firebase Console, go to Project Settings > General.
  2. Locate the API key listed under Web API Key.
  3. Ensure that this key is the one used in your app's configuration file (e.g., google-services.json for Android or GoogleService-Info.plist for iOS).

Configure OAuth Redirect URIs

If you are using OAuth providers, make sure the redirect URIs are correctly set:

  1. In the Firebase Console, navigate to Authentication > Sign-in Method.
  2. For each provider, ensure the redirect URI matches the one configured in your app.

Conclusion

By following these steps, you should be able to resolve the auth/app-not-authorized error and successfully authorize your app to use Firebase Authentication. For more detailed guidance, refer to the Firebase Authentication Documentation.

Master 

Firebase Auth The app is not authorized to use Firebase Authentication.

 debugging in Minutes

— Grab the Ultimate Cheatsheet

(Perfect for DevOps & SREs)

Most-used commands
Real-world configs/examples
Handy troubleshooting shortcuts
Your email is safe with us. No spam, ever.

Thankyou for your submission

We have sent the cheatsheet on your email!
Oops! Something went wrong while submitting the form.

🚀 Tired of Noisy Alerts?

Try Doctor Droid — your AI SRE that auto-triages alerts, debugs issues, and finds the root cause for you.

Heading

Your email is safe thing.

Thank you for your Signing Up

Oops! Something went wrong while submitting the form.

MORE ISSUES

Deep Sea Tech Inc. — Made with ❤️ in Bangalore & San Francisco 🏢

Doctor Droid