Mozilla also runs the ad company Mozilla Anonym, and now they traffic in other people’s data.

Huh, that's a pretty recent acquisition. I guess we'll see what they do with it.

Mozilla sells geolocation and browsing data to ad companies.

But isn't this only if you opt-in to their extension? I don't, have never, and probably will never use that extension.

But I guess we'll see if they'll amend the privacy policy of FakeSpot and stop the sale of personal data to advertisers, which would be in-line with the privacy policy on the rest of their services. But that absolutely is my line in the sand. If they integrate FakeSpot with that terrible privacy policy into Firefox, I will leave to a different browser. I sincerely hope they just haven't fully integrated the FakeSpot org into Mozilla, though their Privacy Policy was updated in Jan of this year, over 6 months after the acquisition.

Maybe Mozilla won't change. I don't know. What I do know is they're currently the best option for an open web. If they fumble that, I guess I'll go try using something like Konqueror again. But until that happens, I'll just avoid their services that violate my privacy.