A guide for installing the Waterfox Browser on Ubuntu 22.04 or 20.04 LTS was released by Linux Capable.
How to Install Waterfox Browser on Ubuntu 22.04/20.04 LTS
Guide on how to install Waterfox Browser on Ubuntu 22.04 or 20.04 using cli commands and covers both Waterfox G and Waterfox Classic browsers.
How to Install Waterfox Browser on Ubuntu 22.04/20.04 LTS - LinuxCapable