1. Go to Facebook and login to your account.
2. Go to the menu in the upper-right corner
of the
page, click on Account and select Privacy
Settings .
3. Go to the bottom, under Applications and
Websites,
and click Edit your Settings .
4. In the Applications you use section, click
Remove .
5. When the Remove Selected Applications
and Websites
window appears, scroll through the list and
use the
corresponding checkboxes to select the apps
and/or
sites that you wish to remove.
6. Click the Remove Selected button.
Once you're done change your fb password
immediately to avoid a repeat of this.