apport opens chromium even though firefox is set as default browser

[komputes]

apport opens chromium even though firefox is set as default browser in gnome-control-center in "System Info > Default Applications". I had the same issue with links in thunderbird but was able to work around that by resetting the preference from "use firefox" to use /usr/bin/firefox

Note: I have ubuntu-desktop as well as lubuntu, xubuntu. Lubuntu brought chrome in as it is a recommended package.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: apport 1.22-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-9.15-generic 3.0.3
Uname: Linux 3.0.0-9-generic i686
NonfreeKernelModules: wl
Architecture: i386
Date: Sat Sep 3 10:24:15 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110817)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: Upgraded to oneiric on 2011-08-27 (6 days ago)