How to install Pale Moon Browser on Ubuntu 20.04 LTS Focal

Let’s discuss the steps to install the Pale Moon browser on Ubuntu 20.04 LTS Focal Fossa using the command terminal.

The Web browser Pale Moon is a fork of Firefox. The program initiated and maintained by Moonchild Productions, like the original program, is licensed under the MPL license. However, special rules apply to the distribution of the binary version: Redistributing Pale Moon. In addition to Linux, it is also available for Windows and Mac (unofficially), and the Android version has been discontinued.

Pale Moon is based on the look of the old Firefox versions (FF 28 and earlier). Older plugins for Firefox incl. plugins that use the NPAPI interface are supported, the newer Firefox plugins (“Web Extensions”) do not work with Pale Moon, and support is not planned.

The design of “Pale Moon” and the basic structure are now also based on the latest version of Firefox. The browser is quite slim, uses the Goanna engine, and should be much faster at the start than its predecessor. Extensions and personas themes should also continue to work under “Pale Moon” without any problems.


Steps to install Pale Moon Browser on Ubuntu 20.04 LTS

Users of other Linux OS based on Ubuntu 20.04 can also use the steps given below to install the Pale Moon browser, if needed such as Linux Mint, POP_OS…

1. Add Pale Moon repository

Unlike FireFox, the packages to install the Pale moon browser are not available to install using the default Ubuntu 20.04 repository. Hence, we need to add the one available and recommended by the official developer’s website. Here is the command.

echo 'deb /' | sudo tee /etc/apt/sources.list.d/home:stevenpusser.list


2. Add Public GPG Key

After adding the repository, also add the GPG key used by the creator of the repository. This lets our system authenticate the packages we are receiving, whether they are from the right source and have not been altered by someone.

curl -fsSL | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_stevenpusser.gpg > /dev/null


3. Update Ubuntu 20.04 LTS

Next, run the system update command that will update the APT package index cache and let the system know about the latest added repository and packages through it.

sudo apt update


4. Install Pale Moon on Ubuntu 20.04

Finally, run use the APT package manager and install this fork of Firefox to have its old look but with the latest base version update.

sudo apt install palemoon


5. Launch the browser

Once the installation is completed, go to the Application launcher and search for Pale moon browser. As its icon appears, click to run the same.

Install Pale Moon on Ubuntu 20.04


6. How to update

In the future, if you want to install the latest available version of Pale browser on your system then we can do that by simply running the system update command. It is because we have used the repository to install it.

sudo apt update && sudo apt upgrade


7. Uninstall or Remove Pale Moon from Ubuntu 20.04

In case you didn’t like the interface of the browser or any other feature and want to uninstall the browser completely from your Ubuntu Linux PC, then here are the commands to follow:

sudo apt autoremove --purge palemoon
sudo rm /etc/apt/sources.list.d/home:stevenpusser.list


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How to open Firefox with URL in Linux via command line
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1 thought on “How to install Pale Moon Browser on Ubuntu 20.04 LTS Focal”

  1. I like the browser but I can’t get it to install into xfce4. Launching the app always gives Failed to execute child process: “Permission denied.”


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