Muon software center continues to crash every time I try to install firefox using "mozilla firefox browser installer"

Application: muon-installer (2.0.0)
KDE Platform Version: 4.10.2
Qt Version: 4.8.4
Operating System: Linux 3.8.0-14-lowlatency x86_64
Distribution: Ubuntu Raring Ringtail (development branch)

-- Information about the crash:
1. download minecraft (you dont have to buy the game)
wget https://s3.amazonaws.com/MinecraftDownload/launcher/minecraft.jar
2. start the launcher
java -Xmx1024M -Xms512M -cp minecraft.jar net.minecraft.LauncherFrame
3. click on (for example) the link for the latest update
"Minecraft 1.5.1"

Next: muon installer will crash

i really dont know why this happens. we use openjdk7 on kubuntu 13.04 daily

The crash can be reproduced every time.

-- Backtrace:
Application: Muon-Programmverwaltung (muon-installer), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6 QVector (v=..., this=0x7fff655e5420) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7fff655e5420) 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=0x11878e0) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x11878e0, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495
#11 0x000000000041b7d1 in main (argc=2, argv=0x7fff655e56c8) at /build/buildd/muon-2.0.0/installer/main.cpp:67

Reported using DrKonqi

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

Same here: After successfull update after installing kubuntu 13.04 beta2, I launch firefox web installer via start menu > applications > internet > mozilla Firefox browser installer and it crashes.

Created attachment 78763
New crash information added by DrKonqi

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

- What I was doing when the application crashed: I had clicked on the icon for "kubuntu-firefox-installer", it crashed multiple times.

- Unusual behavior I noticed:
  The package "kubuntu-firefox-installer" and "firefox" clashed over a file that both though twas thiers, I had to used dpkg to deal with the problem.

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7fffa85ccad0) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7fffa85ccad0) 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=0x226d9b0) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x226d9b0, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

*** Bug 318148 has been marked as a duplicate of this bug. ***

Created attachment 78856
New crash information added by DrKonqi

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

- What I was doing when the application crashed:J'était sur le forum kubuntu.
En fait le rapport de bug, pour ce qui me concerne est innexacte car muon ne plante pas.
L'erreur est que dans le menu, près la mise à jour de 12.10 vers 13.04, c'est Mozilla Fire Fox INSTALLER qui apparaît alors que Fire Fox est , en fait, déja installé.
Par ailleurs, la désinstallation avec muon est impossible.

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7fffcb005cb0) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7fffcb005cb0) 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=0x2533030) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x2533030, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

Created attachment 78889
New crash information added by DrKonqi

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

- What I was doing when the application crashed:
I started firefox-installer and muon crashed.

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7ffff04412c0) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7ffff04412c0) 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=0x222c680) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x222c680, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

Created attachment 78898
New crash information added by DrKonqi

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

- What I was doing when the application crashed:
I only attempted to install Mozilla Firefox Browser with preconfigured installer shortcut.

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7ffff8c82da0) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7ffff8c82da0) 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=0x1ec6540) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x1ec6540, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

*** Bug 318370 has been marked as a duplicate of this bug. ***

Created attachment 78936
New crash information added by DrKonqi

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

- What I was doing when the application crashed:

Clicked on the Mozilla Firefox Browser Installer

-- Backtrace (Reduced):
#6 QVector (v=..., this=0x7fffe94e4320) at /usr/include/qt4/QtCore/qvector.h:123
#7 QForeachContainer (t=..., this=0x7fffe94e4320) 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=0x8841a0) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#10 0x000000000041dd0f in MainWindow::openApplication (this=0x8841a0, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

*** Bug 318406 has been marked as a duplicate of this bug. ***

Created attachment 78975
New crash information added by DrKonqi

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

- What I was doing when the application crashed:

I was clicking on the firefox installer and muon crashes

-- Backtrace (Reduced):
#7 QVector (v=..., this=0xbf916f10) at /usr/include/qt4/QtCore/qvector.h:123
#8 QForeachContainer (t=..., this=0xbf916f10) at /usr/include/qt4/QtCore/qglobal.h:2367
#9 ResourcesModel::resourceByPackageName (this=0x0, name=...) at /build/buildd/muon-2.0.0/libmuon/resources/ResourcesModel.cpp:263
#10 0x0806041d in MainWindow::triggerOpenApplication (this=this@entry=0x902e6d8) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:502
#11 0x080604f3 in MainWindow::openApplication (this=0x902e6d8, app=...) at /build/buildd/muon-2.0.0/installer/MainWindow.cpp:495

Git commit 223aecd0306ac398c66422b8a3641f2be25112eb by Jonathan Thomas.
Committed on 18/04/2013 at 17:05.
Pushed by jmthomas into branch '2.0'.

Do not crash if we try to navigate to an application page before the ResourcesModel has been created.
(We'll try again later after everything else has been initialized)
FIXED-IN:2.0.1

M +3 -0 installer/MainWindow.cpp

http://commits.kde.org/muon/223aecd0306ac398c66422b8a3641f2be25112eb

Git commit b32fd439d227da06c9d4d3e7f7fc2ef1e677a336 by Jonathan Thomas.
Committed on 18/04/2013 at 17:05.
Pushed by jmthomas into branch 'master'.

Do not crash if we try to navigate to an application page before the ResourcesModel has been created.
(We'll try again later after everything else has been initialized)
FIXED-IN:2.0.1

M +3 -0 installer/MainWindow.cpp

http://commits.kde.org/muon/b32fd439d227da06c9d4d3e7f7fc2ef1e677a336

*** Bug 318702 has been marked as a duplicate of this bug. ***