Facebook has provided you a feature called “Download your Information” which means you can download your whole facebook profile as a backup-including your photos and videos, posts on your wall, all of your messages, your friend list and other content you have shared on your profile. Within this zip file you will have access to your data in a simple, browse able manner.
To begin this process, go to your Account Settings page, then click the “learn more” link beside “Download Your Information.” From there, click the “Download” button.
Why I need to download my profile?
If ever you need to delete or deactivate your facebook profile or if ever you need to remove your hacked facebook profile then you will not lose your data as you will be having a backup.