The sooner people realize Mozilla is not your friend, the better. They’ve been compromised by the Google money. Want an alternative to Chromium? Go support Servo or Ladybird, Firefox can’t be saved.
I like SeaMonkey, it works with a legacy version of ublock. It's like using firefox back when it didnt suck.
Supporting Servo on its own doesn't really move the needle a whole lot if it's missing all of the rest of the bits that make a comprehensive browser.
Firefox is already using Servo (at least in the form of Quantum) under the hood and is still the best option available to prevent more of a complete Blink monoculture than already exists with every other major browser being Blink-based or some reskin/fork of Chromium