getting logged out after every page refresh when using auth.onAuthStateChanged firebase 9

Question

For some reason I am getting logged out of my app on page refresh , I am using the the following logic and I had to disable the unsubscribe thinking it is causing the issue but problem still continues. and I cannot log in unless I use log out function and the sign in back, but if I refresh back to the same loop.

 useEffect(() => {
    //  unsubscribe logic !!
    //const unsubscribe =
    auth.onAuthStateChanged((user) => {
      setCurrentUser(user);

    });
    //return unsubscribe;
  }, []);