I have no idea why you’re getting down voted. It’s essentially true.

The arrangement is vital for Mozilla. According to the Mozilla Foundation’s 2021–2022 financial statement, which is the most recent one published, $510 million out of its $593 million in revenue came courtesy of Google’s search payments. https://fortune.com/2024/08/05/mozilla-firefox-biggest-potential-loser-google-antitrust-search-ruling/

This is just wrong. None of those will prevent server side ads.