I would happily pay to download Firefox if they removed telemetry, ads, analytics. Security updates could be free, feature updates could have a small fee. Something similar.
There is a way to fund Firefox without user data and ads. Will it be as profitable, who knows, because quite simply, the vast majority do not want to make it a reality and loose what profit, control, or power they currently hold onto.
My Recipe Box is used by a few in my family.
No account or internet connection needed and app for Android and ios.