Remove Facebook login popup de PoundXI

Facebook login popup always appear if you're not logged in. This extension will remove it automatically.

This extension is useful when:
- No Facebook account.
- Don't want to log in. (For example: When not using their own computer)

Note:
- Facebook display login popups in different ways so this extension might not work good for you all (But not bad to try).

*** If this extension works well, please rate it to assure new users that we are not deceiving them. ***