I left the firefox camp about a couple of weeks ago. First, it has huge memory consumption on linux (seems more like leaks) and my RAM is 16 Gigs. The recent decisions and the light shed on mozilla priorities actually made me realize that Mozilla is on the same train as evil corporates like Google. Ungoogled chromium seems the better choice to me atm
Have you tried the various Firefox forks? If one of your primary problems with Firefox is a belief that they are "evil like Google" then switching to a browser developed by Google and further entrenching their monopoly on the market is a very strange decision.