Right? What kind of wildly niche activities are people doing where FF doesn’t work? All of my stuff works, and I’ve never had any weirdness. I browse art, shop online, do social media (a little), check my email, use auction sites, and watch Plex and other streaming services.
There must be an entire corner of the internet I don’t even know about.
For reals. This is the browser equivalent of being concerned that your car only has 14-way adjustable seats instead of 16, or whatever the marketing team dreamed up last year.