How to unblock a blocked website from a computer?

[i like candies]

My friend wants to get a Facebook account except her brother blocked it from their laptop. Does anyone know how to unblock it? She uses the web browser Safari. Thanks in advance!

P.S. - What is a 'proxy'? I don't know ... :/

[Keith]

Try a different browser and/or clean that ip address from your hosts file.

[saramau5]

Hmm okay, well I have one idea, I am NOT 100% guaranteed it will work, BUT..
Go to website you want, http://www.facebook.com and it will be blocked right?
Well, in the web address, take 'http://' and change it to 'https://'
You know, add and 's' to the 'http://'
If that doesn't work, do that again on a different web browser. Like Google Chrome or I.E. (Internet Explorer)
Oh and I suggest you not use a proxy, it really isn't all there..
A proxy is like another network type that allows you access to multiple blocked websites.
I don't know much about it, perhaps somebody else can tell you more about it.