[Bug 1653908] [NEW] preference change of homepage doesn't work

[NancyG]

Public bug reported:

It won't let me change the homepage from ubuntu mate to startpage.
www.startpage.com. I keep changing it and it keeps going right back to
the old homepage. How can I get the change to stick?

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: firefox 50.1.0+build2-0ubuntu0.16.10.1
ProcVersionSignature: Ubuntu 4.8.0-30.32-generic 4.8.6
Uname: Linux 4.8.0-30-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.3-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  nancyg     1871 F.... pulseaudio
 /dev/snd/controlC1:  nancyg     1871 F.... pulseaudio
BuildID: 20161209093710
Channel: Unavailable
CurrentDesktop: GNOME-Flashback:Unity
Date: Wed Jan  4 00:23:41 2017
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2015-11-22 (408 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
IpRoute:
 default via 192.168.2.1 dev eth0  proto static  metric 100 
 192.168.2.0/24 dev eth0  proto kernel  scope link  src 192.168.2.101  metric 100
IwConfig:
 lo        no wireless extensions.
 
 eth0      no wireless extensions.
Locales: extensions.sqlite corrupt or missing
MostRecentCrashID: bp-31c43ef3-6ebd-4c27-a69b-540192161109
Plugins:
 IcedTea-Web Plugin (using IcedTea-Web 1.6.2 (1.6.2-3ubuntu1)) - /usr/lib/jvm/java-8-openjdk-amd64/jre/lib/amd64/IcedTeaPlugin.so (icedtea-8-plugin)
 GNOME Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
 Shockwave Flash - /usr/lib/adobe-flashplugin/libflashplayer.so (adobe-flashplugin)
PrefSources:
 /usr/lib/firefox/defaults/pref/all-ubuntumate.js
 prefs.js
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=50.1.0/20161209093710 (In use)
RelatedPackageVersions:
 icedtea-8-plugin  1.6.2-3ubuntu1
 gnome-shell       3.20.4-0ubuntu2
 adobe-flashplugin 1:20161213.1-0ubuntu0.16.10.1
RfKill:
 
RunningIncompatibleAddons: False
SourcePackage: firefox
SubmittedCrashIDs:
 bp-31c43ef3-6ebd-4c27-a69b-540192161109
 bp-d4c740e7-a790-4c2d-bb0f-f296d2161005
 bp-cbd5a2ba-360e-4fe1-b008-49b642160801
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to yakkety on 2016-10-22 (73 days ago)
dmi.bios.date: 06/11/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A22
dmi.board.name: 0HX555
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 16
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA22:bd06/11/2012:svnDellInc.:pnOptiPlex755:pvr:rvnDellInc.:rn0HX555:rvr:cvnDellInc.:ct16:cvr:
dmi.product.name: OptiPlex 755
dmi.sys.vendor: Dell Inc.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug yakkety

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https://bugs.launchpad.net/bugs/1653908

Title:
  preference change of homepage doesn't work

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