Ubuntu now ships Firefox by default as a Snap package. While the Snap version works fine for most users, some prefer the Extended Support Release (ESR) version of Firefox for its stability and long-term support. If you’re one of them, you can install Firefox ESR from the official Mozilla Team PPA instead of using the Snap package.
Why Firefox ESR?
Firefox ESR (Extended Support Release) is designed for organizations and users who value stability over frequent feature changes. It receives regular security updates but fewer major feature changes, making it ideal for work environments.
Steps to Install Firefox ESR on Ubuntu
Remove the Snap version (optional but recommended):
sudo snap remove firefox
Add the Mozilla Team PPA:
sudo add-apt-repository ppa:mozillateam/ppa
Update your package list:
sudo apt update
Install Firefox ESR:
sudo apt install -y firefox-esr
Verify the installation:
firefox --version
