We have a Web Extension that uses firebase for auth. It was working fine until the latest version of Safari 18.3 got released few days ago on January 27, 2025.
All of out extension versions stopped working on it; even the ones that are published on App Store. It uses FirebaseJS v9.23.0.
Same version of the extension are working fine on other browsers. We use onAuthStateChanged
to listen to auth related events; but it is never fired now.