The download link on the Firefox Developer Edition page just downloads a .tar.bz2 file.

Have tried the following methods:


sudo add-apt-repository ppa:ubuntu-desktop/ubuntu-make
sudo apt-get update
sudo apt-get install ubuntu-make
umake web firefox-dev

This gave me:

ERROR: Download page changed its syntax or is not parsable


I used:

sudo apt install firefox-dev

The command ran but i could not find any instance of firefox developer edition in application launcher search. I ended up using sudo apt remove later.


Upon running sudo add-apt-repository ppa:ubuntu-mozilla-daily/firefox-aurora, I got the error:

sudo: add-apt-repository: command not found

I also tried to install it manually from the .tar.bz2 file, but it was confusing as there are no elementary-specific instructions on the web.

2 Answers 2


One option is to manual install it.

1. Download from the official website: https://www.mozilla.org/en-US/firefox/developer/

I got the firefox-62.0b20.tar.bz2

2. Uncompress the archive content somewhere, you can use ~/.opt/firefox or Downloads/apps it's your call.

3. inside the firefox directory there's a firefox file. Right-click -> Permissions -> Execute. Now you will be able to execute it.

4. Click (or double-click) the firefox file, it will start firefox.

If you don't want it anymore or want to download a different version just delete the directory and repeat the process. You can create a Launcher shortcut though.

enter image description here

sudo apt install software-properties-common
sudo add-apt-repository ppa:ubuntu-mozilla-daily/firefox-aurora
sudo apt update
sudo apt install firefox-dev

This will get you the Aurora builds, not stable. It looks like that's what you were wanting to do?

  • I actually wanted the stable build, but the only instructions for PPA pointed to the aurora builds. Thanks for the answer though!
    – Aadil Ayub
    Commented May 27, 2018 at 12:38

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