Application: konqueror (4.4.5 (KDE 4.4.5))
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.36-rc6-amd64 x86_64
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
There was nothing special I recall to have be doing. I only wanted to log in to github.com. It was not reproducible.

 -- Backtrace:
Application: Konqueror (konqueror), signal: Segmentation fault
[KCrash Handler]
#5  0x000000000263c070 in ?? ()
#6  0x00007f9e57ab3ec1 in khtml::LineEditWidget::contextMenuEvent (this=0x31f3da0, e=0x7fffb31020b0) at ../../khtml/rendering/render_form.cpp:901
#7  0x00007f9e6ad99018 in QWidget::event (this=0x31f3da0, event=0x7fffb31020b0) at kernel/qwidget.cpp:8211
#8  0x00007f9e6b14f043 in QLineEdit::event (this=0x31f3da0, e=0x7fffb31020b0) at widgets/qlineedit.cpp:1480
#9  0x00007f9e6c6d79aa in KLineEdit::event (this=0x31f3da0, ev=0x7fffb31020b0) at ../../kdeui/widgets/klineedit.cpp:1329
#10 0x00007f9e6ad4332c in QApplicationPrivate::notify_helper (this=0x11365d0, receiver=0x31f3da0, e=0x7fffb31020b0) at kernel/qapplication.cpp:4302
#11 0x00007f9e6ad499d3 in QApplication::notify (this=0x7fffb3103150, receiver=0x31f3da0, e=0x7fffb31020b0) at kernel/qapplication.cpp:3946
#12 0x00007f9e6c604836 in KApplication::notify (this=0x7fffb3103150, receiver=0x31f3da0, event=0x7fffb31020b0) at ../../kdeui/kernel/kapplication.cpp:302
#13 0x00007f9e6bc1c0bc in QCoreApplication::notifyInternal (this=0x7fffb3103150, receiver=0x31f3da0, event=0x7fffb31020b0) at kernel/qcoreapplication.cpp:726
#14 0x00007f9e6adedec0 in QKeyMapper::sendKeyEvent (keyWidget=0x31f3da0, grab=<value optimized out>, type=QEvent::KeyPress, code=16777301, modifiers=) at kernel/qkeymapper_x11.cpp:1867
#15 0x00007f9e6adf02d1 in QKeyMapperPrivate::translateKeyEvent (this=0x116e930, keyWidget=0x31f3da0, event=<value optimized out>, grab=false) at kernel/qkeymapper_x11.cpp:1845
#16 0x00007f9e6adc7a34 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fffb3102c20) at kernel/qapplication_x11.cpp:3406
#17 0x00007f9e6adf3592 in x11EventSourceDispatch (s=0x113a3b0, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#18 0x00007f9e66f73042 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#19 0x00007f9e66f76f78 in ?? () from /lib/libglib-2.0.so.0
#20 0x00007f9e66f7712c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#21 0x00007f9e6bc456d3 in QEventDispatcherGlib::processEvents (this=0x1119f80, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:412
#22 0x00007f9e6adf318e in QGuiEventDispatcherGlib::processEvents (this=0x2f0af70, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#23 0x00007f9e6bc1a9e2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#24 0x00007f9e6bc1adbc in QEventLoop::exec (this=0x7fffb3102f40, flags=) at kernel/qeventloop.cpp:201
#25 0x00007f9e6bc1fa4b in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1003
#26 0x00007f9e6e19375b in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_konqueror.so
#27 0x00007f9e6dd8dc4d in __libc_start_main (main=<value optimized out>, argc=<value optimized out>, ubp_av=<value optimized out>, init=<value optimized out>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffb3103b28) at libc-start.c:228
#28 0x0000000000400679 in _start ()

Reported using DrKonqi