Mozilla is going to collect a lot more data from Firefox users (osnews.com)

"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."

This existing HN submission is probably the better one: https://news.ycombinator.com/item?id=43200065