Firefox

I guess that's what happens when the last competitor in a space is being funded by the monopolistic option and you threaten to cut that off.

Two things I think are interesting here:

This is in line with every other minority browser out there. It's not working for them, either.

There is a remarkable lack of projects to create alternatives getting traction. Nobody is even repackaging Gecko into a different browser. I don't have the knowledge to tell if making and maintaining a browser is just that expenive and hard, but it sure seems like a reasonable explanation.