[Bug 1381596] [NEW] Firefox misbehaves to open mailto URIs

[Uqbar]

Public bug reported:

==== 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

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


** Tags: amd64 apport-bug third-party-packages trusty

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https://bugs.launchpad.net/bugs/1381596

Title:
  Firefox misbehaves to open mailto URIs

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