Google is _forcing_ Chrome, onto everyone. Gecko is fully embeddable on Android, through GeckoView. Nobody uses it, because the default WebView is chrome. androidx.browser is Chrome. And if you want to delegate to the browser while still staying in an app context, the feature is called Chrome Custom Tabs. Everything is made to make people forget about Firefox's existence. Google actively harms Firefox performance on their websites, while happily displaying a "it's better on Chrome" everywhere you browser. They force the WHATWG's hand on 90% of features. There's articles every month on new-obscure-feature-that-is-only-implemented-by-chrome-and-requires-an-army-to-implement, pushed and paid for by Google, which dumbass webshits are going to go and implement because obviously their VC backed startup _really_ needs WebUSB and WebMIDI, as well as Google's shitty, unfinished implementation of WebGPU.
Google is a cancer that grows everywhere, killing everything it touches. Firefox smoking a cigarette from time to time is not responsible for that.