IF you want to remove an application from your Facebook account, here is what you need to do:
- First, login to your Facebook account
- Click on the Applications menu in the bar on the bottom of the screen and then click Edit
- Click the Authorized tab on the top of the page that appears.
- Click the Remove link on the right of the application’s name. Click Remove again to confirm the deletion
The application will now be deleted from your Facebook profile. You’ll not be able to use its functions unless you add it to your Facebook profile again.