From the comparison of the lists, looks like desktop is still their focus, which points to a sad level of navel gazing for an internet company in 2018. Makes me question whether they are focused on competing with Chrome or whether they just want to make cool tech.
The desktop (and laptop) is still my focus, too. It's where I do all my work. I'm glad someone still gives a damn. I'm glad not everyone is chasing the crowdsourced social-mobile-AI-blockchain. Not all tech has to point in the same direction.
That said I use Firefox on Android every day and it's fantastic, so what are you talking about specifically?
Firefox has major issues with scrolling and also with a lot of plugins that claim to be available on mobile but simply don't work. They need to do a marketing push because nobody wins when one browser has monopoly share on an OS, especially if it's the default browser.
Desktop is where nearly all Firefox users are, all of whom immediately get the benefits of improvements to Firefox, and whose use of Firefox funds all Mozilla.
