Earlier quoted context omitted.
Why not? A huge portion of developers uses Macs and windows support is coming at some point. Better to get an actual feedback from the developers.
One would expect an organization dedicated to freedom to prioritize Linux support.
Just to clarify, I don't fault Mozilla for having that attitude, but that doesn't mean I prefer it. I would prefer that they prioritize FOSS platforms like Linux and \*BSD, as well as getting Firefox on platforms like Plasma Mobile, PostmarketOS, and other GNU/Linux-based mobile operating systems. Developer adoption is a necessary (but probably not sufficient) precondition for general adoption, which is why developing for these platforms is important even though they are new/unpopular.