Haha. Sounds like they did this all along but only put it into writing recently.

"UPDATE: We’ve seen a little confusion about the language regarding licenses, so we want to clear that up. We need a license to allow us to make some of the basic functionality of Firefox possible. Without it, we couldn’t use information typed into Firefox, for example. It does NOT give us ownership of your data or a right to use it for anything other than what is described in the Privacy Notice."

Introducing a terms of use and updated privacy notice for Firefox | The Mozilla Blog

UPDATE: We’ve seen a little confusion about the language regarding licenses, so we want to clear that up. We need a license to allow us to make s...

They did respond, but it didn't really do us much good. They never claimed 'ownership' of your data, just the right to use it in any way they see fit (e.g. for tracking and ads). They're still doing what we were upset with them to begin with, and a lack of comment on the real issues kinda confirms that they intend to continue. Instead if that disclaimer they might as well have said "There's been some confusion, but we promise we'll never kick your dog."

But they didn't update the statement in the actual document to reflect this did they? It's a legal document that users agree to, whatever some doofus says elsewhere is not legally binding would be my guess 🤷‍♂️

So, update, I might have been to harsh on them. The update was what I quoted, but there's a good chance what they were intending to say was that it was changed for compliance rather than a change in behavior. They are still tracking and sharing you data, be it anonymized (which I've complained about in the past), but it sounds like nothing in their behavior has changed as of yet post new ToS. I should have probably given them a bit more benifit of the doubt.