package kubuntu-firefox-installer (not installed) failed to install/upgrade: Versuch, »/usr/share/applications/firefox.desktop« zu überschreiben, welches auch in Paket firefox 20.0+build1-0ubuntu0.12.10.3 ist

[bitpull]

this happend while I was running

sudo apt-get install kubuntu-desktop

It seems there is a conflict between ubuntu and kubuntu firefox-packages

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: kubuntu-firefox-installer (not installed)
ProcVersionSignature: Ubuntu 3.5.0-27.46-generic 3.5.7.7
Uname: Linux 3.5.0-27-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Wed Apr 10 14:00:45 2013
ErrorMessage: Versuch, »/usr/share/applications/firefox.desktop« zu überschreiben, welches auch in Paket firefox 20.0+build1-0ubuntu0.12.10.3 ist
InstallationDate: Installed on 2013-02-20 (48 days ago)
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
MarkForUpload: True
SourcePackage: kubuntu-firefox-installer
Title: package kubuntu-firefox-installer (not installed) failed to install/upgrade: Versuch, »/usr/share/applications/firefox.desktop« zu überschreiben, welches auch in Paket firefox 20.0+build1-0ubuntu0.12.10.3 ist
UpgradeStatus: Upgraded to quantal on 2013-03-07 (33 days ago)