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Firefox Quantum on Debian Jessie / Stretch

Firefox Quantum has been release on November 14th, and this post shows how to install it on Debian Jessie, but the following procedure should also works on Debian Stretch.

1) Download it from Mozilla website:

I have download and unpacked it on


Inside this folder we find the Firefox binary file. Let’s do it!

2) We need to configure 3 alternatives links in order to let any application that needs a browser to be opened in Firefox Quantum.




sudo update-alternatives --install /usr/bin/x-www-browser x-www-browser /home/kaiux/Downloads/firefox/firefox 100
sudo update-alternatives --install /usr/bin/gnome-www-browser gnome-www-browser /home/kaiux/Downloads/firefox/firefox 100
sudo update-alternatives --install /usr/bin/www-browser www-browser /home/kaiux/Downloads/firefox/firefox 100

3) After install the new links, we need to select it, please choose the link for your home directory

sudo update-alternatives --config x-www-browser
sudo update-alternatives --config gnome-www-browser
sudo update-alternatives --config www-browser

4) Adding Firefox Quantum for Gnome.

Up to now, I have not uninstalled Firefox 52 ESR, I will leave there for compatibility and security reasons (another post)

Please, download this file and change line 96 to whatever path you have download your Firefox version.

After, that run:

sudo desktop-file-install thisfile.desktop

Given that thisfile.desktop is the downloaded file from my PasteBin.

Just logout/login again or wait few minutes. Firefox Quantum is ready to go




Got some help from:

One Comment

  1. Felipe Felipe

    Thank you, the trick about config alternatives help me so much

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