he instalado firebase (npm i firebase) todos los npm instalados son los últimos en su versión

código importado como tal-

 import firebase from "firebase/app"; import config from "./config.json"; import "firebase/firestore"; import "firebase/auth"; import "firebase/storage"; firebase.initializeApp(config); let provider = new firebase.auth.GoogleAuthProvider(); export const auth = firebase.auth(); export const firestore = firebase.firestore(); export const storage = firebase.storage(); export const signInWithGoogle = () => { auth.signInWithPopup(provider); }; export default firebase;

código donde lo uso: -

 import { signInWithGoogle } from "./firebase" let Login=()=>{ return( <button onClick={()=>{ signInWithGoogle(); }} >click to sign</button> ); } export default Login;