> Wait aren't browsers already trying to implement anti-tracking measures?

Yes, and trackers are investing large sums of money into breaking those measures.

If you give advertisers a lawful non-user-threatening way to measure their ads performance, a lot of that money may disappear.

(Or it may not, or it may disappear either way. That one market is crazy and I know almost nothing about it. But the claim that the money may disappear is valid, and you have to provide a valid counter-claim if you want to contest it. Calling it evil doesn't cut it.)

But this is exactly what I wrote that I don't believe in my initial comment. There'll always be more money in more intrusive tracking. Why would they give that up? Surely Mozilla is selling out to advertisers based on something more substantive than "we hope that advertisers won't keep taking a mile if we give an inch"?