https://github.com/mozilla/bedrock/commit/d459addab846d8144b...
The change removing "Does Firefox sell your personal data? Nope. Never have, never will. And we protect you from many of the advertisers who do. Firefox products are designed to protect your privacy. That’s a promise." makes it pretty clear that the intention in the changes is NOT just covering their bums for using your input to provide the webpage you wanted. They are positioning to sell your personal data.
That promise to never have, never will sell your personal data was highly valued by many Firefox users and Mozilla must be pretty desperate to break it.Particularly given online privacy is suddenly crucial for many out-groups in the US - and pretty much everyone outside the US. The biggest marketing opportunity for years just landed in Mozilla's lap, and they spilled it.