All talk of "Privacy", "Principles" and "Promises" from Mozilla was already empty as they were completely dependent on Google's money.
This should surprise absolutely no-one and Mozilla never cared about their claims of privacy or their users as long as Google was paying them.
So now we know that when it comes down to the wire as their biggest customer (Google) was under anti-trust scrutiny; indirectly threatening Mozilla's deal with Google, They once again chose to violate the privacy of their users to sell their data to other companies like Google.
For Mozilla, money has always crushed their so-called "principles".