Warning to all Brave Browser Users
Blocking variations.brave.com which is used for A/B testing could potentially break Brave’s functionalities. For me did Brave’s “forgetful browsing” feature broke which seems to be disabled by default if you block this domain.
You’d need a very good reason to not use Firefox given that it’s all that stands against a Google monopoly on web standards. I was using a Chromium-based browser myself until Opera and Microsoft both abandoned their own browser engines - after that I couldn’t possibly justify not supporting Firefox.