Downvote me to oblivion but the facts are mozilla has long been funded by google and advertising, thus actively contributed (and still contributing) to turn the web into a surveillance tool. You may have forgotten but I still remember how mozilla alienated developers around the time firefox was still firebird (or was it when it was phoenix?). How they killed the mozilla suite that turned out to perform better than the unbloated replacement for it. Then there's the legal threats towards debian.

These are only a few examples off the top of my head, but one does not have to look very deep to find a trail of not doing the right thing at mozilla along its history. Sorry if pointing this out infuriates the fanboï in you, but mozilla has done its share of wrong along the otherwise good stuff.