No one care about this story at large. It's a pretty bad argument to make among the population that does care. Every HN user can leave Firefox and it'd still be running.
Fortunately, history has shown you don't need a majority of users decrying something to get noticed.
If it's Mozilla signed then you could give it extra permissions so it still works the same, but then people who it offends can remove it.
Like how their tab containers system is a (not pre-installed) extension