Comment 3 for bug 1169572

Created attachment 78712
New crash information added by DrKonqi

muon-installer (2.0.0) on KDE Platform 4.10.2 using Qt 4.8.4

After successfull update after installing kubuntu 13.04 beta2, I launch firefox web installer via start menu > applications > internet > mozilla web browser installer and obtain this bug.
no possibility to install firefox.
Nota : I'm not advanced user

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7fffee9527d0) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7fffee9527d0) at /usr/include/qt4/QtCore/qglobal.h:2367
#8 ResourcesModel::resourceByPackageName (this=0x0, name=...) at /build/buildd/muon-2.0.0/libmuon/resources/ResourcesModel.cpp:263
#9 0x000000000041dc4a in MainWindow::triggerOpenApplication (this=0x2240000) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x2240000, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495