Browsers are primarily in the user fingerprinting business, but I would not be surprised that there is absolutely no incentive nor desire to invest in "security

Browsers are primarily in the user fingerprinting business, but I would not be surprised that there is absolutely no incentive nor desire to invest in "security and privacy"(tm) other than to facilitate their main purpose. Let me stress this once again, the main purpose of a modern browser is to enable global, cross-network user tracking so that companies like google can collect data regardless of whether you "accept cookies", use vpns or sign up into one of google apps(which makes that "see what data google has about you" project even more evil).