It's worth pointing out that Google cripples its apps in Firefox intentionally and since Edge is now basically Chrome, MS probably, (perhaps unintentionally?), follows suit.
Unfortunately the Firefox codebase itself is the only marketing tool at work here. I still use Firefox for everything else, not least due to the fact it isn't trying to swindle every last private detail out of me, but for work stuff and gaming (O365/GCloud) I don't really care about any of that.
Hiding behind lies and random personal attacks will not make Firefox better, but comparisons to its main competitor in key areas might help
I’m not seeing a lie. Google intentionally cripples/degrades software in Firefox. Hell, Google degrades YouTube viewed in iOS Safari because they want me to install the app.