If you use Firefox nightly (and maybe some of the other beta branches too, I’m not sure), there’s a way to get any extension, they just might not work properly. I haven’t really had issues with nightly, despite it being such a bleeding-edge build - although I would recommend keeping a backup browser since sometimes it decides to just stop working
Finally finishing Celeste, after not playing it for a couple of years
Lately I’ve been playing Plants vs Zombies, and I was planning on playing Halo Infinite as soon as I can get the campaign to stop crashing when it first loads