gnome-session[3399]: WARNING: Error while executing session-migration: Failed to execute child process "session-migration" (No such file or directory)
(gnome-settings-daemon:3537): media-keys-plugin-WARNING **: Grab failed for some keys, another application may already have access the them.
(gala:3624): GLib-GObject-WARNING **: g_object_set_valist: object class 'ClutterSettings' has no property named 'window-scaling-factor'
(nvidia-settings:3713): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(nvidia-settings:3713): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(nvidia-settings:3713): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(nvidia-settings:3713): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(nvidia-settings:3713): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(process:8344): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
(firefox:8344): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:8344): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:8344): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:8344): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:8344): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:25837): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:25837): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:25837): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:25837): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(plugin-container:25837): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(process:4792): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
(firefox:4792): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:4792): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:4792): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:4792): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(firefox:4792): Gtk-WARNING **: Unable to locate theme engine in module_path: "pixmap",
(midori4:11815): Gtk-WARNING **: BookmarksAdd: missing action BookmarksAdd
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed
(midori4:11815): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0' failed