From Privacy Doctrine
What is Firefox
Firefox is a free software browser that respects your freedom as a user and doesn't have the privacy invasive features found in Google's Chrome Browser.
We build Firefox with a mission to put you first, above all else. We do it to keep you in control. We do it so you can browse without worry. And we do it because no one else will. via - https://www.mozilla.org/en-US/firefox/desktop/trust/