But Mozilla cannot enforce idealism on the developers.

They do already a great job with documentation, but they could and should improve on the dev-tools.

Chrome dev tools are now in a state, that I only use them for developing and debugging. Built in code editor with autocomplete. And I can debug ... and change code while debugging. And it works great (mostly).

Firefox dev tools on the other hand barely work for me to do some debugging and it is no joy. So no wonder more and more developers skip it alltogether, given the low market share of firefox.