On Thu, Mar 22, 2012 at 06:23:51PM +0100, Mester Imre wrote: > 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 apt-get update again, there was something wrong on the server.