Ubuntu Start Page does not change search provider with browser setting

Binary package hint: firefox

Expected Result:

Going to about:home or start.ubuntu.com/10.04/ should result in the Yahoo version of the start page.

Actual Result:

I always get the Google version of the start page despite my search provider selection in Firefox.

Steps to reproduce:

1. Open Firefox
2. Set search provider to Yahoo
3. Navigate to about:home or http://start.ubuntu.com/10.04/

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: firefox 3.6.3+nobinonly-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
CheckboxSubmission: bcfeb7ec0924ff2acd6ecac618ff64e8
CheckboxSystem: 2954e74ba17fb0e37fc942cd1d9fab4e
Date: Tue May 11 19:46:11 2010
EcryptfsInUse: Yes
FirefoxPackages:
 firefox 3.6.3+nobinonly-0ubuntu4
 firefox-gnome-support 3.6.3+nobinonly-0ubuntu4
 firefox-branding 3.6.3+nobinonly-0ubuntu4
 abroswer N/A
 abrowser-branding N/A
InstallationMedia: Ubuntu-Netbook-Remix 9.10 "Karmic Koala" - Release i386 (20091028.4)
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: firefox