Network-manager cannot find shared library after last updates and the network was completely gone

[Walter Garcia-Fontes]

I updated this morning and when I logged in tonight I did not have the network-manager icon and no network connection. I tried with ethernet and wifi and there was not connection. Network-manager was still running in the background.

The workaround for this was found in:
http://ubuntuforums.org/showpost.php?p=11272304&postcount=21

It basically consists of:

sudo cp /usr/lib/thunderbird-7.0/libnss3.so /usr/lib/x86_64-linux-gnu/

and after rebooting the icon and the network were back again and I reinstalled this library:

sudo apt-get install --reinstall libnss3

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: network-manager 0.9.0-0ubuntu3
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Wed Sep 21 22:28:40 2011
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
IpRoute:
 default via 192.168.1.1 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.13
Keyfiles: Error: [Errno 2] No such file or directory
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
SourcePackage: network-manager
UpgradeStatus: Upgraded to oneiric on 2011-09-05 (16 days ago)
modified.conffile..etc.NetworkManager.NetworkManager.conf:
 [main]
 plugins=ifupdown,keyfile

 [ifupdown]
 managed=true
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2011-09-21T21:06:15.958976