BT: "Mozilla has recently talked about including an option in their browser to allow users the option to opt-out of having their browsing data passed on to 3rd party advertisers and aggregators. The proposition states that a ‘Do Not Track’ header should be placed in a site’s source code. However, is blocking these 3rd party sites fair to the site owner?"
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.