Common sense would suggest that Mozilla has, at the very least, reservations about Apple and its web strategy. Especially since Apple does not allow a full Firefox to run on its iOS and Apple's closed web strategy goes pretty much against everything Mozilla has laid out about an open web. However, Rob Sayre, who is in charge of developing the JavaScript engine for Firefox and is one of the leading developers of the browser, believes that Apple is actually great for the evolution of the Internet.
It's 2022, every browser should have this.
Web browsers collect a massive amount of our web history data. These options can help with that.
A major source of revenue for Mozilla.