Debian Mozilla team

The Debian Mozilla team provides various versions of some Mozilla related packages for use on different Debian systems. The following wizard helps you to find the packages suitable for your system.

WARNING: Iceweasel is gone. Please update your apt sources.

WARNING: Jessie and Stretch backports of Firefox release and beta are gone because of the requirement of rust to build them, which is not available in Jessie or Stretch. Please update your apt sources to use Firefox ESR instead.

WARNING: Aurora doesn't exist anymore.

« I am running Debian and I want to install version »

You need to add the following entry in /etc/apt/sources.list or a new file in /etc/apt/sources.list.d/:

deb jessie-backports main
deb jessie-backports iceweasel-release

You can install it with the following commands:

$ apt-get update
$ apt-get install -t jessie-backports iceweasel

Please report any problem to the list.

The archive is signed, so APT may complain until you add the archive key to your APT keyring.

You can do so by installing the pkg-mozilla-archive-keyring package. Once installed, you can check the key with the following command (requires the debian-keyring package to be installed):

$ gpg --check-sigs --fingerprint --keyring /etc/apt/trusted.gpg.d/pkg-mozilla-archive-keyring.gpg --keyring /usr/share/keyrings/debian-keyring.gpg pkg-mozilla-maintainers
pub   4096R/06C4AE2A 2010-11-20 [expires: 2012-11-14]
      Key fingerprint = 85F0 6FBC 75E0 67C3 F305  C3C9 85A3 D265 06C4 AE2A
uid                  Debian Mozilla team APT archive <>
sig!3        06C4AE2A 2010-11-20  Debian Mozilla team APT archive <>
sig!         54FD2A58 2010-11-20  Mike Hommey <>

1 signature not checked due to a missing key

The latter message about signature not being checked is expected, as the archive key is signed by two keys, but only one being in the Debian keyring at a given moment: 54FD2A58 is an old key that is going to be deprecated and replaced with A6AA8C72. You can thus also expect the last signature validation to differ depending on the Debian keyring version you use.

You may want to check the trust path from your key to the one that signed the archive key. Or you can choose to trust the Debian keyring.