Application that crashed: plasma-desktop
Version of the application: 0.3
KDE Version: 4.2.85 (KDE 4.2.85 (KDE 4.3 Beta1)) "release 3.4"
Qt Version: 4.5.1
Operating System: Linux 2.6.27.21-0.1-pae i686

What I was doing when the application crashed:
when start firefox 3.5b4 palsma crached, while staring ff switching beetving desctops

 -- Backtrace:
Application: Рабочее пространство Plasma (plasma-desktop), signal: Segmentation fault
[Current thread is 1 (Thread 0xb49edb60 (LWP 6523))]

Thread 2 (Thread 0xa904bb90 (LWP 6524)):
#0  0xffffe430 in __kernel_vsyscall ()
#1  0xb62dbc35 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0
#2  0xb633b722 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#3  0xb785dae2 in ?? () from /usr/lib/libQtNetwork.so.4
#4  0xb633a70e in ?? () from /usr/lib/libQtCore.so.4
#5  0xb62d81b5 in start_thread () from /lib/libpthread.so.0
#6  0xb611b3be in clone () from /lib/libc.so.6

Thread 1 (Thread 0xb49edb60 (LWP 6523)):
[KCrash Handler]
#6  0xa9307287 in TaskManager::Task::window() const () from /usr/lib/libtaskmanager.so.4
#7  0xb643f26f in QObject::event(QEvent*) () from /usr/lib/libQtCore.so.4
#8  0xb6d21bb7 in QGraphicsWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#9  0xb66b869c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#10 0xb66c099e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#11 0xb7595b8d in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#12 0xb642eadb in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#13 0xb645e176 in ?? () from /usr/lib/libQtCore.so.4
#14 0xb645a600 in ?? () from /usr/lib/libQtCore.so.4
#15 0xb4ddf6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#16 0xb4de2c6b in ?? () from /usr/lib/libglib-2.0.so.0
#17 0xb4de2de8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#18 0xb645a558 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#19 0xb6758975 in ?? () from /usr/lib/libQtGui.so.4
#20 0xb642d0fa in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#21 0xb642d53a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#22 0xb642f9e9 in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#23 0xb66b8517 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#24 0xb7f18170 in kdemain () from /usr/lib/libkdeinit4_plasma-desktop.so
#25 0x08048792 in _start ()

This bug may be a duplicate of or related to bug 192493