My point is not the way you label gathering information from your users but rather that it is about implementing something Google proposed. If the mechanism wo

My point is not the way you label gathering information from your users but rather that it is about implementing something Google proposed. If the mechanism works, fine, but why should I use Firefox over Chromium then? Opt-out data collection is in violation to my core beliefs and what I believed to be Mozilla's principles. Collecting data without asking the user about it is - to me - in violation to the very definition of privacy and calling some way to anonymise data (who guarantees that the cryptographic approach to this is not obsolete in a few years?) "differential privacy" is at the very least dishonest.