Mozilla Firefox is a speedy, light open source web browser built for multiple platforms including Ubuntu Linux. Ubuntu does a great job updating to the latest version of Firefox. If the latest stable isn’t latest enough, the Mozilla Team has an official PPA for Firefox Beta.
This guide will work on Ubuntu derived distros that include PPA support. Official flavors like Kubuntu, Xubuntu, Lubuntu, Ubuntu Budgie, Edubuntu, Ubuntu Mate, Ubuntu Studio, and whatever else may roll off will work all work. Other derived distros like Linux Mint, Pop!_OS, and Elementary OS all support Ubuntu’s PPA system and will work with this guide.
What is a PPA? PPA stands for Personal Package Archive. Its like a mini repository for Ubuntu systems. A PPA from a source like Mozilla should generally be considered safe to use.
Be warned, beta software may still contain bugs and can break compatibility with themes, extensions, or add-ons. Use at your own risk.
Updating to Firefox Beta is super simple. Open a command line by pressing Super + T. Copy and paste the following command.
sudo add-apt-repository ppa:mozillateam/firefox-next
After adding the PPA, update the system and upgrade packages.
sudo apt update && sudo apt upgrade
Firefox will automatically update to the current beta version.