Is it possible to permanently block other devices from using my facebook?

[Cristi]

In the last few days, someone has been accesing my facebook account. I changed my password two times and even the email, and still someone with an unknown device is using my facebook. Is there an option on facebook that could block all other devices apart from the recognised devices. (Sorry for my english)

[Respectedoatmeal959]

To end a session:

Click Settings in the top-right corner of any Facebook page and choose Account Settings
Click Security from the left column > Active Sessions
Find the session you want to end and click End Activity
Clicking End Activity will immediately log you off of Facebook on that computer or phone.

[Daniel]

No its Not Possible All you can Do Is End the Session From Active Sessions From your Security Settings on Facebook