It was also a really bad implementation. I developed for the firefox os reference phone before the launch - it was atrociously slow. Think low end android phon

It was also a really bad implementation. I developed for the firefox os reference phone before the launch - it was atrociously slow. Think low end android phone (of the time!) running software that was 10x slower than android's. It's really hard to describe how slow it was if you didn't personally use a firefox os phone. There were times when it felt significantly slower than a 386 running windows 3.11.