Description:

Both firefox and thunderbird crash hard with a "ABORT: X_SendEvent: BadValue (integer parameter out of range for operation)". This happens when the gnome session is launched from a remote computer via NX. The issue is not reproduced when running firefox and thunderbird locally on the server.

Both firefox and thunderbird are running fine if started in safe mode. Thunderbird window displays normally in safe mode, firefox window starts as a minimally resized window (see screenshot - http://www.picpaste.com/9M7D4ar5.png), but after resizing/maximizing works just fine.

Both programs worked fine before updating to firefox 18 and thunderbird 17.

From digging on the internets, the bug seems to be related to either cairo, nx and/or Xorg, but I don't know how to debug further.


Additional info:
* package version(s)

extra/gnome-desktop 1:3.6.2-1 (gnome)
extra/xorg-server 1.13.1-1 (xorg) [installed]
extra/cairo 1.12.8-2
extra/firefox 18.0-1
extra/thunderbird 17.0.2-1
extra/freenx 0.7.3-15
extra/nx-common 3.5.0-5
extra/nx-x11 3.5.0.17-1
extra/nx-xcompext 3.5.0.17-1
extra/nxagent 3.5.0.17-1
extra/nxclient 3.5.0.7-3
extra/nxproxy 3.5.0.17-1
extra/opennx 0.16.0.724-2

* log files:

- stdout/stderr starting firefox and thunderbird: http://pastebin.com/twtG47Zv
- gdb stack trace of thunderbird: http://pastebin.com/iBHz9hWN
- gdb stack trace of firefox: http://pastebin.com/qUGCXvAG


Steps to reproduce:

- install above packages on server machine
- start X on :0, configure nx
- on client machine, start opennx client, login to server and start a gnome session
- try to start thunderbird and firefox (from dm launchers or from a terminal) => crashes
- try to start in safe mode => running fine