Application that crashed: nspluginviewer
Version of the application: 
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-15-generic i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
nspluginviewer crash on visiting www.tsn.ca; konqueror did not crash.  I didn't click on a video, but the website may have tried to load a flash video on its own. 

 -- Backtrace:
Application: nspluginviewer (nspluginviewer), signal: Segmentation fault
[Current thread is 0 (LWP 10875)]

Thread 3 (Thread 0xb26b0b90 (LWP 10879)):
#0  0xb80d6430 in __kernel_vsyscall ()
#1  0xb63d30e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66b92ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb3f9e78f in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#4  0xb40cfb3f in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#5  0xb3f9ec3d in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#6  0xb63cf4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66aa49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb1eafb90 (LWP 10880)):
#0  0xb80d6430 in __kernel_vsyscall ()
#1  0xb63d30e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb66b92ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb3f9e78f in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#4  0xb40cfb3f in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#5  0xb3f9ec3d in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#6  0xb63cf4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb66aa49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb60f0700 (LWP 10875)):
[KCrash Handler]
#6  0xb7e5fbcb in g_slice_alloc () from /usr/lib/libglib-2.0.so.0
#7  0xb7e602e5 in g_slice_alloc0 () from /usr/lib/libglib-2.0.so.0
#8  0xb62b5b4b in g_type_create_instance () from /usr/lib/libgobject-2.0.so.0
#9  0xb629a3f5 in ?? () from /usr/lib/libgobject-2.0.so.0
#10 0xb629ac26 in g_object_newv () from /usr/lib/libgobject-2.0.so.0
#11 0xb629b7e7 in g_object_new_valist () from /usr/lib/libgobject-2.0.so.0
#12 0xb629b95e in g_object_new () from /usr/lib/libgobject-2.0.so.0
#13 0xb3cea8dc in gtk_plug_new_for_display () from /usr/lib/libgtk-x11-2.0.so.0
#14 0xb3cea926 in gtk_plug_new () from /usr/lib/libgtk-x11-2.0.so.0
#15 0xb3f919cd in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#16 0xb3f87581 in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#17 0xb3f8bdb4 in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#18 0x080502a8 in ?? ()
#19 0x0805e16c in ?? ()
#20 0x0805d72e in ?? ()
#21 0x0805024e in ?? ()
#22 0x0805e8b4 in ?? ()
#23 0xb7ee4e5a in QDBusConnectionPrivate::deliverCall (this=0x922c9c0, object=0x93a3e60, msg=@0x947f6f8, metaTypes=@0xbf8f17b8, slotIdx=7) at qdbusintegrator.cpp:891
#24 0xb7ee6072 in QDBusConnectionPrivate::activateCall (this=0x922c9c0, object=0x93a3e60, flags=273, msg=@0x947f6f8) at qdbusintegrator.cpp:796
#25 0xb7ee65e1 in QDBusConnectionPrivate::activateObject (this=0x922c9c0, node=@0x947f6e4, msg=@0x947f6f8, pathStartPos=12) at qdbusintegrator.cpp:1370
#26 0xb7ee6ada in QDBusActivateObjectEvent::placeMetaCall (this=0x947f6b8) at qdbusintegrator.cpp:1464
#27 0xb73483b0 in QObject::event (this=0x94eb6d0, e=0x947f6b8) at kernel/qobject.cpp:1111
#28 0xb696fd3c in QApplicationPrivate::notify_helper (this=0x91f8218, receiver=0x94eb6d0, e=0x947f6b8) at kernel/qapplication.cpp:4056
#29 0xb697803e in QApplication::notify (this=0xbf8f2170, receiver=0x94eb6d0, e=0x947f6b8) at kernel/qapplication.cpp:3603
#30 0xb787985d in KApplication::notify (this=0xbf8f2170, receiver=0x94eb6d0, event=0x947f6b8) at /build/buildd/kde4libs-4.3.1/kdeui/kernel/kapplication.cpp:302
#31 0xb7337bcb in QCoreApplication::notifyInternal (this=0xbf8f2170, receiver=0x94eb6d0, event=0x947f6b8) at kernel/qcoreapplication.cpp:610
#32 0xb7338825 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x91ceae0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#33 0xb7338a1d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#34 0xb73636af in postEventSourceDispatch (s=0x91fa510) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#35 0xb7e40b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#36 0xb7e440eb in ?? () from /usr/lib/libglib-2.0.so.0
#37 0xb7e44268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#38 0xb3cb6634 in gtk_main_iteration () from /usr/lib/libgtk-x11-2.0.so.0
#39 0xb3f8eb17 in ?? () from /usr/lib/firefox/plugins/flashplugin-alternative.so
#40 0xb7e412b6 in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb7e40b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#42 0xb7e440eb in ?? () from /usr/lib/libglib-2.0.so.0
#43 0xb7e44268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#44 0xb7363317 in QEventDispatcherGlib::processEvents (this=0x91cecb8, flags={i = -1081139272}) at kernel/qeventdispatcher_glib.cpp:329
#45 0xb6a11a75 in QGuiEventDispatcherGlib::processEvents (this=0x91cecb8, flags={i = -1081139224}) at kernel/qguieventdispatcher_glib.cpp:202
#46 0xb73361fa in QEventLoop::processEvents (this=0xbf8f2060, flags={i = -1081139160}) at kernel/qeventloop.cpp:149
#47 0xb7336642 in QEventLoop::exec (this=0xbf8f2060, flags={i = -1081139096}) at kernel/qeventloop.cpp:201
#48 0xb7338ae9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#49 0xb696fbb7 in QApplication::exec () at kernel/qapplication.cpp:3525
#50 0x0805c630 in ?? ()
#51 0xb65dc775 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#52 0x0804e5b1 in _start ()

This bug may be a duplicate of or related to bug 206593

Reported using DrKonqi