Actual paying users would be better than millions of users that just want to complain. At this point with so much immorality online, what browser you use is just a matter of taste.
I was a paying user (at least a donated to them) before they started breaking extensions, putting tracking in, putting DRM in, rewriting things in rust and working on crap like webasm that will make the web even more user hostile.
At this point paying them to literally do nothing all do would give me a better return on investment than the direction they're heading.
I would not at all balk at paying for software that works and doesn't churn everything every 2 years. That was the main appeal to me of MacOS. There is a threshold of crappy changes to abandonment and Microsoft crossed it and Apple just mismanaged it.
Firefox doesn't bother me so much that I hate it yet. But I got to wonder if the only voices that matter were the users that actually paid for it, I would imagine the paying users would be mostly happy. That seems to be the case for commercial software that offers free beer wares on the side like Unity3D.
At this point paying them to literally do nothing all do would give me a better return on investment than the direction they're heading.