Facebook is now tracking everything you do without your notice. Here is a step by step guide to stop Facebook from tracking you and having access to your data while you're not currently using the application.
Step By Step Guide to Deactivate Facebook offline Tracking.
1. Click on Facebook Settings
2. Under the settings, click on your Facebook information and select the OFFLINE FACEBOOK ACTIVITY option
3. Click on Manage Your Off-Facebook Activity
When you're at that page, click on Clear History and Clear any history regarding your tracks or services used. Mostly what you find there are websites you personally visited and apps you used recently.
4. Click on Turn Of Facebook Activity