Mozilla Team's Firefox stable + 128 ESR and Thunderbird 128 stable builds Support for Ubuntu 16.04 / 18.04 ESM is included for 115 ESR based releases only.| Launchpad
Unofficial Ubuntu application packages maintained by xtradeb. You may request additional packages by filing a bug here: https://launchpad.net/xtradeb. You can find more information in our website: https://xtradeb.net.| Launchpad
Ubuntu also includes a wide variety of software through its network of software repositories. Once your system is installed you can simply call up a list of all the existing tools out there and choose any of them for immediate installation over the internet.| Launchpad