Google & Wikipedia do not appear as search engines in "Open Search" plugin

[Brewster Malevich]

Binary package hint: gnome-do-plugins

I have both "Wikipedia" and "Google" in my search bar on Firefox, in fact, these are the two searches I use most often.
When I attempt to search for something via Do, all of my searches but these two appear as options to search by.

ProblemType: Bug
Architecture: amd64
Date: Fri Oct 23 17:32:52 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: wl
Package: gnome-do-plugins 0.8.2.1+dfsg-1~ubuntu1
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: gnome-do-plugins
Uname: Linux 2.6.31-14-generic x86_64

[Brewster Malevich (brews)]

Copying the .xml as in http://ubuntuforums.org/showpost.php?p=8229435&postcount=3 solves the problem.