Mozilla is also not in the business of making browsers per se, fwiw; it's making a browser because that happens to be the best way to steer the future of the we

Mozilla is also not in the business of making browsers per se, fwiw; it's making a browser because that happens to be the best way to steer the future of the web. See the Mozilla Manifesto. And while Google and Mozilla agree on some aspects of the web's future, there are other parts (fingerprinting, tracking of users) on which there are pretty fundamental disagreements.