package unity-webapps-service 2.4.1-0ubuntu3.2 failed to install/upgrade: package unity-webapps-service is already installed and configured

just launching firefox caused this error, I think.

ProblemType: Package
DistroRelease: Ubuntu 12.10
Package: unity-webapps-service 2.4.1-0ubuntu3.2
ProcVersionSignature: Ubuntu 3.5.0-25.39-generic 3.5.7.4
Uname: Linux 3.5.0-25-generic x86_64
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
Date: Sat Mar 16 07:18:32 2013
DuplicateSignature:
 Processing triggers for gnome-menus ...
 dpkg: error processing unity-webapps-service (--configure):
  package unity-webapps-service is already installed and configured
ErrorMessage: package unity-webapps-service is already installed and configured
InstallationDate: Installed on 2013-03-16 (0 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
SourcePackage: libunity-webapps
Title: package unity-webapps-service 2.4.1-0ubuntu3.2 failed to install/upgrade: package unity-webapps-service is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)