title: How to change the app name for Firebase authentication (what the user sees)
body: <p>Thanks to Firebase v 3.9.0, my social OAuth is working great in my ionic app. I have one little change I'd like to make. When prompted to login, it says &quot;Sign in to continue to <code>my-real-appname-12345f.firebaseapp.com</code>.&quot;</p>
  <p>How to I change that to something more user-friendly like, you know, the app's actually name.</p>
  <p>To clarify, I am using Firebase to handle authentication for both Google and Facebook. The message is the same for both.</p>