It seems impossible, but I wonder if Mozilla could be salvaged?
I want a browser styled like the rugged and customisable UI of Firefox 4.x with the Gecko improvements of the Quantum releases. With desktop-to-mobile sync with real cryptography, before this nonsense of a 'Firefox account'. A browser that preserved features pleasing to techies and power users, while omitting features abhorrent to them, would be the ideal.
How could such a thing be funded, and how could we get the old hacker collective style of Mozilla back? Or how would we start something new and get the full time labour necessary to develop such a browser, with an independent rendering engine and JS VM? While keeping unethical incentives as far from sight as possible.
I don't pretend it is an easy question, but framing the right question is a start.