Every Ubuntu user that uses a graphical interface will have to interact with Mozilla Firefox in some capacity, since it's the default internet browser on Ubuntu 20.04 Focal Fossa. Even if you just want to uninstall it and use a different browser, you'll at least be dealing with it for a short time. In this guide, we'll show you how you can install, update, and uninstall Firefox on Ubuntu 20.04.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-uninstall-and-update-firefox-on-ubuntu-20-04-focal-fossa-linux