GPG key dead

[Mester Imre]

Hi,

What can I'll do with this?

1)
W: GPG error: http://mozilla.debian.net squeeze-backports Release: Az
alábbi aláírások érvénytelenek voltak: BADSIG 85A3D26506C4AE2A Debian
Mozilla team APT archive

2)
http://mozilla.debian.net/pkg-mozilla-archive-keyring_1.0_all.deb
or
http://backports.debian.org/debian-backports/pool/main/p/pkg-mozilla-archive-keyring/
not still working

3)

gpg --check-sigs --fingerprint --keyring
/etc/apt/trusted.gpg.d/pkg-mozilla-archive-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 2011-11-15  Debian Mozilla team APT archive


Where is the working key?
I've a Debian Squeeze.

My sources.list:
#

# deb cdrom:[Debian GNU/Linux 6.0.1 _Squeeze_ - Official i386 DVD Binary-1
20110319-13:42]/ squeeze contrib main

# deb cdrom:[Debian GNU/Linux 6.0.1 _Squeeze_ - Official i386 DVD Binary-1
20110319-13:42]/ squeeze contrib main


# squeeze-updates, previously known as 'volatile'
# A network mirror was not selected during install.  The following entries
# are provided as examples, but you should amend them as appropriate
# for your mirror of choice.

#Debian
deb http://ftp.debian.org/debian/ squeeze main contrib non-free
deb http://ftp.debian.org/debian/ squeeze-updates main contrib non-free
deb http://ftp.hu.debian.org/debian/ squeeze-updates main contrib non-free
deb http://ftp.hu.debian.org/debian/ squeeze main contrib non-free
deb-src http://ftp.hu.debian.org/debian/ squeeze contrib main non-free

#Added by software-properties
deb http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://security.debian.org/ squeeze/updates main contrib non-free
deb-src http://ftp.hu.debian.org/debian/ squeeze-updates main contrib
non-free

#Debian Proposed
deb http://ftp.debian.org/debian/ squeeze-proposed-updates main contrib
non-free

#Debian Backports
deb http://backports.debian.org/debian-backports squeeze-backports main
contrib non-free

#Debian Multimedia Squeeze
deb http://www.debian-multimedia.org squeeze main non-free

#Debian Mozilla
deb http://mozilla.debian.net/ squeeze-backports iceweasel-release

# Google
deb http://dl.google.com/linux/deb/ stable non-free
### THIS FILE IS AUTOMATICALLY CONFIGURED ###
# You may comment out this entry, but any other modifications may be lost.
deb http://dl.google.com/linux/talkplugin/deb/ stable main

# DropBox
deb http://linux.dropbox.com/debian squeeze main

# Rendszerment
deb http://ppa.launchpad.net/nemh/rendszerment/ubuntu lucid main
deb-src http://ppa.launchpad.net/nemh/rendszerment/ubuntu lucid main
deb http://ppa.launchpad.net/flacon/ppa/ubuntu lucid main
deb-src http://ppa.launchpad.net/flacon/ppa/ubuntu lucid main
deb http://ooo.itc.hu/abevjava/ abevjava main
deb http://deb.opera.com/opera/ squeeze non-free

# /etc/apt/sources.list.d/liquorix.list
# deb http://liquorix.net/debian sid main
# deb http://packages.linuxmint.com/ debian main

Thank's before it!
Imre Mester
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