firebase_core_web is a part of
firebase_core, check the dependencies in the pubspec.yaml of source code. If you add
firebase_core to your dependencies, it will include
firebase_core_web as well. But you have to add different scripts to your
index.html as well for Firebase to work on web.
Answered By – Peter Koltai
Answer Checked By – Marilyn (FlutterFixes Volunteer)