Unable to install Search Engines in Firefox 25.0

[el_gallo_azul]

On 4 November 2013, I tried to add a couple of Search Engines to the Firefox search box. I was not able to install Search Engines using Manage Search Engines from the list of ADD-ONS presented when I did a search for add-ons.

Steps to reproduce:

I tried to add a couple of Search Engines to Firefox 25.0.

Actual results:

The plugin was not installed. I received the error message "Sorry, you need a Mozilla-based browser (such as Firefox) to install a search plugin.".

Expected results:

A new Search Engine should have been installed.

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu

UIbuntu 13.04

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center

firefox 25.0+build3-0ubuntu0.13.04.1

3) What you expected to happen

I added a new search engines to the search engines that I already have.

4) What happened instead

I was unable to add a new search engine.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: firefox 25.0+build3-0ubuntu0.13.04.1
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
NonfreeKernelModules: nvidia
AddonCompatCheckDisabled: False
ApportVersion: 2.9.2-0ubuntu8.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC2: el_gallo_azul 2394 F.... pulseaudio
 /dev/snd/controlC1: el_gallo_azul 2394 F.... pulseaudio
 /dev/snd/controlC0: el_gallo_azul 2394 F.... pulseaudio
BuildID: 20131028112627
CRDA:
 country DE:
  (2400 - 2483 @ 40), (N/A, 20)
  (5150 - 5250 @ 40), (N/A, 20), NO-OUTDOOR
  (5250 - 5350 @ 40), (N/A, 20), NO-OUTDOOR, DFS
  (5470 - 5725 @ 40), (N/A, 26), DFS
Channel: Unavailable
Date: Wed Nov 20 10:32:50 2013
ExecutablePath: /usr/lib/firefox/firefox
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: LastPass - <email address hidden>
InstallationDate: Installed on 2013-10-02 (48 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
IpRoute:
 default via 192.168.178.1 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.178.0/24 dev wlan0 proto kernel scope link src 192.168.178.35 metric 9
MarkForUpload: True
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
Profiles: Profile0 (Default) - LastVersion=25.0/20131028112627 (In use)
RelatedPackageVersions:
 totem-mozilla 3.6.3-0ubuntu6
 rhythmbox-mozilla 2.98-0ubuntu5
 djview-plugin 4.9-3
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/22/2013
dmi.bios.vendor: Intel Corp.
dmi.bios.version: SE5C600.86B.02.01.0002.082220131453
dmi.board.asset.tag: ....................
dmi.board.name: W2600CR
dmi.board.vendor: Intel Corporation
dmi.board.version: G21602-303
dmi.chassis.asset.tag: ....................
dmi.chassis.type: 17
dmi.chassis.vendor: ..............................
dmi.chassis.version: ..................
dmi.modalias: dmi:bvnIntelCorp.:bvrSE5C600.86B.02.01.0002.082220131453:bd08/22/2013:svnIntelCorporation:pnW2600CR:pvr....................:rvnIntelCorporation:rnW2600CR:rvrG21602-303:cvn..............................:ct17:cvr..................:
dmi.product.name: W2600CR
dmi.product.version: ....................
dmi.sys.vendor: Intel Corporation

[el_gallo_azul (el-gallo-azul)]

PS I first reported this bug as

https://bugzilla.mozilla.org/show_bug.cgi?id=935314

but Mozilla said

"If you cannot reproduce it with a build from Mozilla, please report it in the Ubuntu bug tracker: https://launchpad.net/ubuntu/+source/firefox/+bugs Thanks."

[Launchpad Janitor (janitor)]

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

[Piotr Popieluch (piotr1212)]

I experience the same problem with firefox 28 on Ubuntu 13.10

[el_gallo_azul (el-gallo-azul)]

I had problems since I updated from Ubuntu 13.04 to Ubuntu 13.10, and other problems when I updated from Ubuntu 13.10 to Ubuntu 14.04. Rather than spend all my time trying to fix problems, I reinstalled Ubuntu 14.04 from DVD, two days ago.

Today is the first time that I have tried to add a search engine which was not available to add directly via the Search Engines drop-down arrow > "Add...".

I attach a screenshot.