My biggest gripe with Firefox OS was that it just wasn't all that different from Android - both technically and philosophically. Aside of a bunch of selected developer-targeted devices, it was usually being just as locked down as Android was. This was done because of the strategy of partnerships with carriers and vendors, but ultimately it just made it uninteresting for the broader FLOSS community to embrace, as it just boiled down to replacing Java-based stack with Web-based one without making any significant progress in device openness and user freedom. It didn't even help Linux, as B2G was made to use Android-specific layers to ensure compatibility with blobs and unmaintainable vendor-provided kernel trees.
There is literally no way Firefox could have fixed the entire OEM landscape.
OEMs are not going to release the driver source code. They simply will not, at best they do random code dumps of whatever kernel version they were using at the time.
This is still true today and even Google tried to make it better with Project Treble. If Google cannot fix this even after all these years with total market dominance then literally Mozilla couldn’t do a single thing about it
Mozilla could have nudged it in the right direction. They didn't try. Not even a step forwards. The entire value proposition from non-technical standpoint was "we're not Google".
Others are trying with much less leverage or resources and actually progressing. Firefox OS was born, lived and died without making a dent.
