Error message when launching Firefox in console

[pascalc]

Binary package hint: firefox-3.5

If you try launching Firefox from a console, either the version provided by Ubuntu or a Linux binary from Mozilla, you get this error message:

(firefox-bin:12388): GLib-WARNING **: g_set_prgname() called multiple times

firefox is launched but we shouldn't have this error message and AFAIK, we didn't have this message in 9.04

Tested on a fresh Ubuntu install.

ProblemType: Bug
Architecture: i386
Date: Mon Dec 28 05:29:36 2009
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
NonfreeKernelModules: nvidia
Package: firefox 3.5.6+nobinonly-0ubuntu0.9.10.1
PackageArchitecture: all
ProcEnviron:
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-16.53-generic
SourcePackage: firefox-3.5
Uname: Linux 2.6.31-16-generic i686