The Waterfox browser is based on Firefox code but there are notable difference between the two browsers. Waterfox continues to support (some) NPAPI plugins, comes without Telemetry, and bootstrapped add-ons.
Waterfox Classic, is the legacy branch of the web browser that will continue to support older standards.
Waterfox Current on the other hand will keep up “with the modern web”.
https://www.waterfox.net/releases/
origin - https://www.pipiscrew.com/?p=15603 waterfox