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Firefox users just block trackers, that's why you don't see them.

No. Check Mozilla’s own numbers if you don’t believe tracking stats.

Firefox users also tend to disable telemetry and any kind of phoning home whatsoever.

Possible perhaps --- but definitely not easy and thus highly unlikely on a broad scale. And this is by design.

The most *easy* and sustainable way to achieve this is by using a fork of Firefox --- aka LibreWolf.