why will every website work on my computer except for facebook?

[george]

You might want to contact your Internet provider and tell them that you can't access a site and they will tell you how to fix it.

This happens becuase of your NAT type of connection. Some NATs are strict and won't allow things like social networking. But just call up the Internet provider example AT&T then tell then you can't access Facebook but can connect to other websites. The tell them all the things you have done to save time. Once that's all good and done they should've figure it out be then