gecko received an X Window System error

[el_vartauy]

$ midbrowser
The program 'gecko' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadAccess (attempt to access private resource denied)'.
  (Details: serial 816 error_code 10 request_code 2 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.)

Ubuntu Gutsy
midbrowser: 0.1.6c-0ubuntu1
midbrowser-gnome-support: 0.1.6c-0ubuntu1
xserver-xorg: 1:7.2-5ubuntu13
Linux varta 2.6.22-14-generic #1 SMP Tue Dec 18 05:28:27 UTC 2007 x86_64 GNU/Linux