All shell extensions disabled at every restart

[Gorgonilla]

WHenever I restart the computer (either a reboot or power-off/power-on) all shell extensions are disabled and I have to re enable them manually.
Recently I have installed the following third party extensions that might have something to do with this problem:
https://extensions.gnome.org/extension/613/weather/
https://extensions.gnome.org/extension/519/messaging-menu/

However, even by uninstalling the above 3rd party extensions, the problem persists.

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: gnome-shell 3.10.0.1-0ubuntu1~saucy1 [origin: LP-PPA-gnome3-team-gnome3-staging]
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic x86_64
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Tue Oct 22 08:13:23 2013
DisplayManager: gdm
GsettingsChanges:
 b'org.gnome.desktop.interface' b'clock-show-date' b'true'
 b'org.gnome.desktop.interface' b'font-name' b"'Ubuntu 11'"
 b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
InstallationDate: Installed on 2013-05-27 (147 days ago)
InstallationMedia: Ubuntu-GNOME 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=it_IT.UTF-8
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to saucy on 2013-10-17 (4 days ago)
gdmSessionLog:
 /etc/gdm/Xsession: Beginning session setup...
 localuser:lviggiani being added to access control list
 localuser:lviggiani being added to access control list
 Script for cjkv started at run_im.
 Script for default started at run_im.