package flashplugin-installer 11.1.102.63ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[henring]

My flash player works in Chrome, but failed to work in Firefox. please give me some tips to fix this problem, very thanks.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: flashplugin-installer 11.1.102.63ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-19.30-generic-pae 3.2.11
Uname: Linux 3.2.0-19-generic-pae i686
NonfreeKernelModules: fglrx
ApportVersion: 1.94.1-0ubuntu2
AptOrdering:
 libnspr4-0d: Install
 flashplugin-installer: Install
 libnspr4-0d: Configure
 flashplugin-installer: Configure
Architecture: i386
Date: Sun Mar 18 21:32:47 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120317)
SourcePackage: flashplugin-nonfree
Title: package flashplugin-installer 11.1.102.63ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to precise on 2012-03-18 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.