Probably stupid mistake, but using the sample page and even though https://www.gstatic.com/firebasejs/ui/live/1.0/firebase-ui-auth.js loads FireFox says
15:04:07.673 ReferenceError: firebase is not defined <anonymous>firebase.html:18
I'm not using firebase serve though.
You need to load the firebase.js library too, and initialize it, usually done by copy pasting the Web Snippet from the Firebase Console into your HTML page.
See here in the <head> tags, you have to include the snippet. Please close the issue if this works for you.
Got it. as expected- so obvious that it hurts, thanks!
make sure the library is loaded before your js starts running,
I fixed this by putting the firebase configuration in a function that is called when the body is loaded.


thx man this helped me to make my project
Most helpful comment
make sure the library is loaded before your js starts running,


I fixed this by putting the firebase configuration in a function that is called when the body is loaded.