sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa This will make sure that you get the latest stable version of Firefox. To get around that, you may want to add the Mozilla repository to your system. The Firefox release cycle differs from the Ubuntu release cycle, and it is possible that the Ubuntu standard repository does not have the latest Firefox package. However, this method is constrained to install the latest version of Firefox present in the Ubuntu repository. Sudo apt install firefox For older Ubuntu versions (released before year 2014) sudo apt-get update You can update your Firefox installation on Ubuntu from the Ubuntu standard repository, using the apt (previously apt-get) package manager tool. Update Firefox from Terminal using Ubuntu standard repository Whether you have chosen to install Firefox updates manually, or Firefox is failing to install an update, you can always use the commands mentioned below to update Firefox from the terminal on Ubuntu and other Debian based distros. For this reason, or for avoiding unnecessary downloads every once a while, users might turn off the auto-update feature, and instead, choose to update Firefox manually.

To make things worse, Firefox even forces the user to restart the browser to continue using it. Most of the time, users have to restart Firefox to complete the update. However, the automatic updates feature in Firefox isn’t as convenient as it sounds. It automatically downloads updates and installs them without requiring a fresh install of Firefox, similar to app updates on your iOS and Android devices. Mozilla Firefox has a popular feature for background updates. Learn how to update Firefox from Terminal on a Ubuntu Linux PC

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