In Chrome CTRL+ Shift + J opens a developer console but I don't want to risk my laptop in pasting the code over there yet I'm genuinely curious as to OP's motivation.
I was considering making a fake Facebook account to do it instead of compromising my own account but I also feel that this may not just affect my account but my compromise my laptop for a malicious activity yet I don't understand one bit of the code (in the pastebin link) to make sense of it.
Can anybody tell me what this code is suppose to do so I can warn my friends accordingly.
The link: https://www.facebook.com/AlbaniaHacking/posts/425791970900654
The actual code: http://pastebin.com/raw.php?i=Vz50Em4F
Thanks