# gconftool -g /desktop/gnome/applications/browser/exec
epiphany-browser


#  sh -x /usr/bin/xdg-open http://google.com
+ check_common_commands http://google.com
+ [ 1 -gt 0 ]
+ parm=http://google.com
+ shift
+ [ 0 -gt 0 ]
+ [ -z  ]
+ unset XDG_UTILS_DEBUG_LEVEL
+ [ 0 -lt 1 ]
+ xdg_redirect_output= > /dev/null 2> /dev/null
+ [ xhttp://google.com != x ]
+ url=
+ [ 1 -gt 0 ]
+ parm=http://google.com
+ shift
+ [ -n  ]
+ url=http://google.com
+ [ 0 -gt 0 ]
+ [ -z http://google.com ]
+ detectDE
+ [ x = xtrue ]
+ [ x != x ]
+ dbus-send --print-reply --dest=org.freedesktop.DBus /org/freedesktop/DBus org.freedesktop.DBus.GetNameOwner string:org.gnome.SessionManager
+
+ xprop -root _DT_SAVE_MODE
+ grep  = \"xfce4\"$
+ [ x = x ]
+ DE=generic
+ pcmanfm http://google.com
** (pcmanfm:10817): DEBUG: FmJob error: Operation not supported