firefox-dev.desktop

Setting up Firefox Developer Edition in Ubuntu

NOTE: I am now recommending to install Firefox via the .deb packages for Debian-based distributions The following instructions are from Support Mozilla with the settings v124 & Linux.

Create a directory to store APT repository keys if it doesn't exist:
```
sudo install -d -m 0755 /etc/apt/keyrings
```

Import the Mozilla APT repository signing key:

wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null

If you do not have wget installed, you can install it with:

sudo apt-get install wget

The fingerprint should be 35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3. You may check it with the following command:

gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc | awk '/pub/{getline; gsub(/^ +| +$/,""); if($0 == "35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3") print "\nThe key fingerprint matches ("$0").\n"; else print "\nVerification failed: the fingerprint ("$0") does not match the expected one.\n"}'

Next, add the Mozilla APT repository to your sources list:

echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null

Configure APT to prioritize packages from the Mozilla repository:

echo '
Package: *
Pin: origin packages.mozilla.org
Pin-Priority: 1000
' | sudo tee /etc/apt/preferences.d/mozilla

Update your package list and install the Firefox .deb package:

Firefox Developer Edition

# Firefox Developer Edition
sudo apt-get update && sudo apt-get install firefox-devedition

Firefox

# Firefox
sudo apt-get update && sudo apt-get install firefox

Firefox Beta

# Firefox Beta (icon is the same as non beta version)
sudo apt-get update && sudo apt-get install firefox-beta

Firefox Nightly

# Firefox Nightly
sudo apt-get update && sudo apt-get install firefox-nightly

TessavWalstijn/firefox-dev.desktop

firefox-dev.desktop