About "gaining access" in the title, it wasn't my intention to irritate someone.
It's perhaps not like giving facebook a direct key for the door, but you will open a window.
The facebook script is blocked on my system as well, but thinking forward, some server admins still have no scripts blocked in their browser, or if they have to use another browser just for some reason.
Everone knows (or should) that Facebook is creating shadow profiles of everyone and everything, so also inclusive the IP of the server, the web url + port of the admin panel, your ip, your system information and what else is being submitted by default without even pressing this button. Then collecting this information and merging it with already collected data from "partners" (which may already include some of your passwords and what you've eaten today, and so on...)
And haven't spoke yet about the friendship of facebook and the NSA and their cyber world war and this is not the forum about such a debate I think, so to keep things focused the question was about if it's really a good idea to have this spy-script right in an admin control panel?