Firefox misbehaves to open mailto URIs

[Uqbar]

==== How to reproduce.
1. Define firefox as default email client (I uninstalled kmail, so now I have "firefox %u") in Settings-->Preferred applications-->Email)

2. Open a webpage with a "mailto" link. I used http://software.schmorp.de/pkg/libeio.html (see at the bottom).

3. Click on a "mailto" link.

==== Current behaviour.
Firefox quickly opens tens of new empty tabs. I needed to open a local VTY (CTRL-ALT-F1) to run "killall -9 firefox" as killing the application on the "X" button was not working.

==== Expected behaviour.
I have no idea. But the above behaviour is not the one we need.
I would like to have my GMail webpage opened to compose a message to the intended recipient.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: firefox 33.0+build2-0ubuntu0.14.04.1
Uname: Linux 3.16.0-pf2+ x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
BuildID: 20141013200257
Channel: Unavailable
CurrentDesktop: KDE
Date: Wed Oct 15 17:14:53 2014
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Default - {972ce4c6-7e08-4474-a285-3208198ce6fd}
InstallationDate: Installed on 2014-09-24 (21 days ago)
InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
IpRoute:
 default via 192.168.254.254 dev eth0 proto static
 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
 192.168.254.0/24 dev eth0 proto kernel scope link src 192.168.254.42 metric 1
IwConfig:
 eth0 no wireless extensions.

 lo no wireless extensions.

 virbr0 no wireless extensions.
MostRecentCrashID: bp-5d1cc267-1d83-4855-84cf-946a32140924
Plugins: Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources: prefs.js
Profiles: Profile0 (Default) - LastVersion=33.0/20141013200257 (In use)
RfKill:

RunningIncompatibleAddons: True
SourcePackage: firefox
SubmittedCrashIDs:
 bp-5d1cc267-1d83-4855-84cf-946a32140924
 bp-d5868c49-a1ec-4d1a-9fda-bf7d12140728
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/22/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: L02 v02.01
dmi.board.asset.tag: CZC3523T17
dmi.board.name: 18EB
dmi.board.vendor: Hewlett-Packard
dmi.chassis.asset.tag: CZC3523T17
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrL02v02.01:bd09/22/2013:svnHewlett-Packard:pnHPProDesk490G1MT:pvr:rvnHewlett-Packard:rn18EB:rvr:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP ProDesk 490 G1 MT
dmi.sys.vendor: Hewlett-Packard

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. You reported this bug some time ago and there have been many changes in Ubuntu since that time. Your problem may have been fixed with some of the updates.

It would help us a lot if you could test on a currently supported Ubuntu version. When you test it and it is still an issue, kindly upload the updated logs by running only once in a terminal:

apport-collect 1381596

and add any additional information that you think relevant. Alternatively, please confirm that this is no longer a problem and that we can close the report. If we do not hear from you the bug report will close itself in approximately two months time.

Thank you again for helping make Ubuntu better.

Paul White
[Ubuntu Bug Squad]

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]