Mozilla Firefox can be installed on Ubuntu Linux using the default Snap package or by configuring the official Mozilla Team PPA repository for native deb packages.

Mozilla Team PPA Installation Commands

Terminal Commandsbash
# Add official Mozilla PPA repository
sudo add-apt-repository ppa:mozillateam/ppa -y
 
# Configure APT pinning to prioritize Mozilla PPA deb packages over Snap
echo '
Package: *
Pin: release o=LP-PPA-mozillateam
Pin-Priority: 1001
' | sudo tee /etc/apt/preferences.d/mozilla-ppa
 
# Install Firefox native deb package
sudo apt update
sudo apt install -y firefox