The problem is essentially the same. I did not say they should start a new browser engine. I think that if Mozilla was as willing to take risks as they were before, they would win over users. The difference is that before they were willing to risk annoying the big fish. Now they are afraid of upsetting Netflix or Google.

And I don't think they will be able to make progress if they refuse to challenge existing web technologies. They could do it, but they won't.

In fact, Mozilla seems terrified of losing favor with any of the major platforms. Which means that they are beholden to them.