I use Firefox when I need a fat modern browser and not something like Netsurf or Nyxt, but that's mostly just a futile symbolic act of defiance on my part. Anyone who thinks Mozilla is the company they once were and that they really are trying to fight the good fight for the open web is kidding themselves. Their brand is being the underdog non-profit open web activism company, but I can't think of anything they've done to meaningfully fight for that. They've sure wasted a lot of time on stupid side projects and ad deals, and I guess they still have Gecko because the code already exists and it'd destroy any facade of competition in the browser market if they switched to Chromium, but if they really were the company people think they are they wouldn't have laid off so many critical teams in 2020. They certainly wouldn't have shitcanned the Servo project, really the only possible threat to Google's de facto monopoly over the web and the biggest meaningful way to fight for the open web.
I know it's been said a ton but the fact that they did that while giving their incompetent CEO a raise and are continuing to put funding into cancerous Web 3.0 shit (VR in the browser? really?) and dumb side projects like their VPN grift should be enough of an indicator to anyone with a brain that Mozilla is controlled opposition at this point and probably being paid off by Google to tank their market share. Maybe it sounds like I need to take my tinfoil hat off, but after everything that's been happening lately with Facebook and Google I don't think this is much of a stretch at all.