Hello Olivier, after the tests done on my computer with 14.04 installed
where the system freezed at each time I launched the webbrowser-app
command, today I can launch the application "webbrowser-app" without
freeze.

Here is the output requested of these 2 commands:

1- open a terminal, run "webbrowser-app":

rdy@rdv:~$ webbrowser-app
OxideQQuickWebContext: userAgentOverrideDelegate is deprecated. Please consider 
switching to userAgentOverrides instead 
Loaded 1 UA override(s) from 
file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Components/Extras/Browser/ua-overrides-desktop.js
[0303/192631:ERROR:layer_tree_host_impl.cc(2181)] Forcing zero-copy tile 
initialization as worker context is missing
Erreur de segmentation (core dumped)
rdy@rdv:~$ 

2- apt-cache policy webbrowser-app liboxideqtcore0 , returns:
rdy@rdv:~$ apt-cache policy webbrowser-app liboxideqtcore0
webbrowser-app:
  Installé : 0.23+14.04.20140428-0ubuntu1
  Candidat : 0.23+14.04.20140428-0ubuntu1
 Table de version :
 *** 0.23+14.04.20140428-0ubuntu1 0
        500 http://fr.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 
Packages
        100 /var/lib/dpkg/status
     0.23+14.04.20140414-0ubuntu1 0
        500 http://fr.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
liboxideqtcore0:
  Installé : 1.12.7-0ubuntu0.14.04.1
  Candidat : 1.12.7-0ubuntu0.14.04.1
 Table de version :
 *** 1.12.7-0ubuntu0.14.04.1 0
        500 http://fr.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 
Packages
        500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 
Packages
        100 /var/lib/dpkg/status
     1.0.0~bzr501-0ubuntu1 0
        500 http://fr.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages
rdy@rdv:~$ 

Thank you for your help. Ren.

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to webbrowser-app in Ubuntu.
https://bugs.launchpad.net/bugs/1550893

Title:
  system freezes when starting /usr/bin/webbrowser-app on 14.04

Status in webbrowser-app package in Ubuntu:
  New

Bug description:
  When I start application "webbrowser-app" from unity on a standard 
Ubuntu/Unity system,
  thewebbrowser  window opens with the google page, then the system freezes 
except that I can move the mouse.
  No mouse click is active, unable to do anything else. I must reboot the 
computer.
  The ALT SYSREQ R-S-E-I-U-B reacts at step "B"

  Parameters: lsb_release -rd
  Description:  Ubuntu 14.04.4 LTS
  Release:      14.04

  The system is up-to-udate, and standard with many (standard) packages
  installed.

  Step to reproduce:
  -------------------------
  Inside of a Unity shortcut .desktop file like the firefox one: 
~/.local/share/applications/firefox.desktop
  Create a new entry like:

  [uwb Shortcut Group]
  Name=Navigateur Web Ubuntu
  Exec=/usr/bin/webbrowser-app

  and add the "uwb" in the line "X-Ayatana-Desktop-Shortcuts"
  Save it.
  Now please use the Unity / Firefox Icon, and  in the menu, select this new 
entry "Navigateur Web Ubuntu".
  The system freeze occurs and you cannot do anything else than moving your 
mouse.

  What should do:
  ---------------------
  The application should be usable and running.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: webbrowser-app 0.23+14.04.20140428-0ubuntu1
  ProcVersionSignature: Ubuntu 3.19.0-51.58~14.04.1-generic 3.19.8-ckt13
  Uname: Linux 3.19.0-51-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Feb 28 10:18:26 2016
  InstallationDate: Installed on 2015-12-07 (82 days ago)
  InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64+mac 
(20150805)
  SourcePackage: webbrowser-app
  UpgradeStatus: No upgrade log present (probably fresh install)

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/webbrowser-app/+bug/1550893/+subscriptions

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