If`Facebook gets banned in your country
If the they Ban facebook in Libya use this steps ( save it from now )
1-go to tools
2- go to internet option
3- go to connection
4- go to LAN Settings
5- check right at the proxy server
6- at address write 18.104.22.168
7- write at port address 3128
8- press OK then press OK
Its international, used in egypt when they banned Facebook & twitter.
I have not verified this personally but it comes from a source I trust. With so much happening any trick that might be useful should be applied.