package firefox 51.0.1+build2-0ubuntu0.16.04.1 failed to install/upgrade: package firefox is already installed and configured

[Fábio Pereira]

Updating program from Ubuntu Software center.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: firefox 51.0.1+build2-0ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-59.80-generic 4.4.35
Uname: Linux 4.4.0-59-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.1-0ubuntu2.5
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fabio 1887 F.... pulseaudio
 /dev/snd/controlC1: fabio 1887 F.... pulseaudio
BuildID: 20170125172221
Channel: Unavailable
CrashReports:
 600:0:116:159595:2017-01-30 00:04:58.031708478 +0000:2017-01-30 00:04:59.031708478 +0000:/var/crash/firefox.0.crash
 600:0:116:159609:2017-01-30 00:04:59.583688447 +0000:2017-01-30 00:04:59.555689465 +0000:/var/crash/thunderbird.0.crash
 600:0:116:159615:2017-01-30 00:04:59.551689610 +0000:2017-01-30 00:04:59.179703134 +0000:/var/crash/firefox-locale-en.0.crash
Date: Mon Jan 30 00:04:58 2017
DuplicateSignature:
 package:firefox:51.0.1+build2-0ubuntu0.16.04.1
 Setting up libglib2.0-bin (2.48.2-0ubuntu1) ...
 dpkg: error processing package firefox (--configure):
  package firefox is already installed and configured
ErrorMessage: package firefox is already installed and configured
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2015-12-02 (424 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IpRoute:
 default via 192.168.1.1 dev wlan0 proto static metric 600
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.4 metric 600
NoProfiles: True
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: dpkg
Title: package firefox 51.0.1+build2-0ubuntu0.16.04.1 failed to install/upgrade: package firefox is already installed and configured
UpgradeStatus: Upgraded to xenial on 2016-07-31 (182 days ago)
dmi.bios.date: 07/10/2009
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.40
dmi.board.name: KSWAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV1.40:bd07/10/2009:svnTOSHIBA:pnSatelliteL500:pvrPSLJ3E-00X01G03:rvnTOSHIBA:rnKSWAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite L500
dmi.product.version: PSLJ3E-00X01G03
dmi.sys.vendor: TOSHIBA