Today 10 years ago I went to Poland to buy a Phone with pre installed #Firefox OS on. The Phone was a Alcatel One, so very shitty. Two years later I installed Firefox OS on my Nexus 5 instead.
It was a very good concept, but sadly rolled out on too shitty hardware so it never caught on.
Considering how dominant the mobile OS has become, this wasn’t a terrible gamble. Like they lost and it looks bad in hindsight, but you can’t blame them for trying. If it had succeeded, we’d be living in a very different world of technology right now.