

As others mentioned, Stremio + Torrentio is amazing. Just make sure you use, preferably, RealDebrid with it. If you can’t use RD, you can use a VPN, but it will cost you some playback speed.
PopcornTime as others have mentioned is amazing, but sadly I haven’t heard much about it lately. Honestly, Stremio + Torrentio is way better though in my opinion. It’s easy to set up and has a ton of shows.
I don’t even trust Steam, let alone Mozilla. I don’t think I’ve ever had any credit card auto-fill on any browser I’ve ever had