From the new terms:
When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.
Firefox “never has and never will” sell your personal data was removed.
https://github.com/mozilla/bedrock/commit/d459addab846d8144b61939b7f4310eb80c5470e
It felt so weird to upvote this. Thanks for pointing that out, but also uuuuuuuuuuuuggggggggggghhhhhhhh