I've read, time ago, this news: #899338
But searching some thing more about this new policy I've found this important variation.
The source is here: GitHub Pages
And on row 62, previously you can read:
"We don’t sell access to your data. You’re in control over who sees your search and browsing history"
but now, the new TOC contain this:
"You’re in control over who sees your search and browsing history"
so, this important part: "we don’t sell access to your data" was removed.
For those who use librewolf it is better to read this discussion on codeberg
The team does not agree to fork mozilla given the bad path they are taking, because the librewolf team is small, with little time available and apparently, not very skilled.