Firefox OS is a failure. The project started way too late, when all other players in the web ecosystem already had a mobile offering, and it didn’t catch up, either. Although the strategy of aiming at the low-end market was a good one for 2010, Mozilla missed its window of opportunity. Now cheap Androids rule at the low end, and why would any consumer move from Android to Firefox OS? (And don’t give me openness blah; consumers don’t care, except for your mother/girlfriend/other signficant other who pretend they care because they love you; not openness.)
Blunt, but probably true.
I felt a little sad when I heard that Firefox OS was dead, not because I have a Firefox OS device, or was even considering purchasing one, but because I love the work Mozilla does and the ethos they promote.