Ok this made the trick for me. Usually, when you install any new browser these values are overriden, and you have to set them again. Maybe it would be a good idea if these values were automatically updated when you change your default browser using "settings > preferred applications".
sudo update-alternatives --config x-www-browser sudo update-alternatives --config gnome-www-browser Source: http://ubuntuforums.org/showthread.php?t=1900454 Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1138161 ** Bug watch added: Mozilla Bugzilla #1138161 https://bugzilla.mozilla.org/show_bug.cgi?id=1138161 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/794720 Title: xubuntu desktop fails to respect "preferred applications" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/794720/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs