There's very little Linux love from firefox and mozilla. 10 years later and still no QT build[1], drops alsa because their implementation is broken and instead of fixing their own mess forces everybody to use pulseaudio[2] and quite a few in between.

It seems there's a reccuring "you do not represent a big enough portion of our users for us to care" attitude over time that made several not big enough portion of their users to stop caring and supporting firefox accelerating its demise caused by trying to be a chrome-like browser (among other mismanagement).

[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=451129 [2]: https://bugzilla.mozilla.org/show_bug.cgi?id=1345661