Comment 4 for bug 220628

The program 'firefox' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadIDChoice (invalid resource ID chosen for this connection)'.
  (Details: serial 16193363 error_code 14 request_code 55 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb653f767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb653f81e]
#2 /usr/lib/libX11.so.6 [0xb6acb518]
#3 /usr/lib/libX11.so.6(XFreeCursor+0x25) [0xb6aa78f5]
#4 /usr/lib/libqt-mt.so.3(_ZN11QCursorDataD1Ev+0x3f) [0xb4ee3389]
#5 /usr/lib/libqt-mt.so.3(_ZN7QCursorD1Ev+0x5a) [0xb4ee358e]
#6 /usr/lib/libqt-mt.so.3 [0xb4ee35d5]
#7 /lib/tls/i686/cmov/libc.so.6(exit+0xd4) [0xb7d0c084]
#8 /usr/lib/libgdk-x11-2.0.so.0 [0xb66b1637]
#9 /usr/lib/libbonoboui-2.so.0 [0xb62ca665]
#10 /usr/lib/libX11.so.6(_XError+0xfe) [0xb6ac473e]
#11 /usr/lib/libX11.so.6 [0xb6acbe5c]
#12 /usr/lib/libX11.so.6(_XEventsQueued+0x4f) [0xb6acc71f]
#13 /usr/lib/libX11.so.6(XPending+0x62) [0xb6ab59d2]
#14 /usr/lib/libgdk-x11-2.0.so.0 [0xb66a604d]
#15 /usr/lib/libgdk-x11-2.0.so.0 [0xb66a6141]
#16 /usr/lib/libglib-2.0.so.0(g_main_context_prepare+0x190) [0xb6bb53e0]
#17 /usr/lib/libglib-2.0.so.0 [0xb6bb5b09]
#18 /usr/lib/libglib-2.0.so.0(g_main_context_iteration+0x6c) [0xb6bb63ac]
#19 /usr/lib/xulrunner-1.9.0.1/libxul.so [0xb782287c]