After being abandoned by Mozilla, FirefoxOS was resurrected as KaiOS. For a while, it was the second most popular mobile operating system in India, mostly because Reliance decided to use it for some of their low-end Jio phones[1]. Where would FirefoxOS be today if Mozilla had stuck with it? If hundreds of millions of people had their first taste of the Internet via FirefoxOS and not Android?
I've been a Firefox user since 2004, but I don't think Mozilla understands how to conduct business. They're an ideological organization first and foremost. It's not a bad thing -- we need somebody to stand up to Big Tech -- but it means that they probably won't be taking a big share of any market except by complete accident.
I think that FirefoxOS could have been great if they'd kept up the development a few more years. Much like XULRunner was a bit ahead of it's time... The hardware got better enough over a few generations, that if it ran on current phones or even last gen it could be pretty good.
I'm running a Pixel 4a, and current Android runs like hot garbage at times, I've got an older Pixel 2XL that needs a new battery... I'd like to take both and put something more open on them to at least play with.
Unfortunately, Mozilla doesn't understand how Firefox even got to be where it was at its' height. They seem to think it's just about marketing buzz. They got to #1 on organic growth alone. By creating something better than the alternatives at a technical level. They need to do that again, but also need some creative types to steer the ship as well. I'm still mad about how they let Thunderbird die on the vine, and if any related tech could have been their ongoing revenue stream it could have been in that space.