Firebase Error -auth Auth-domain-config-required- |work| Jun 2026

Ensure your .env file includes REACT_APP_FIREBASE_AUTH_DOMAIN (or similar) and restart your dev server.

I can provide the or environment variable setup once I know your tech stack. Firebase Error -auth Auth-domain-config-required-

Initially, a new Firebase project automatically includes a few default domains: Ensure your

const firebaseConfig = apiKey: "your-api-key", authDomain: "://firebaseapp.com", // This is the missing piece projectId: "your-project-id", storageBucket: "://appspot.com", messagingSenderId: "your-sender-id", appId: "your-app-id" ; // Initialize Firebase firebase.initializeApp(firebaseConfig); Use code with caution. 3. Verify Environmental Variables Firebase Error -auth Auth-domain-config-required-

You might be using a generic config or an environment variable that isn't loading.