1st, open your facebook then go to the "Account" and select the "Privacy Settings"
this will be show
Then find the application and websites in bottom left, click the "Edit your settings"
Page like this will be shown, please focus on the top there, there will list out all the application you have, find the "Remove unwanted or spammy application" or "Turn off all platform applications".
suggest to do both.
When this small box is shown, tick the unwanted applications then click remove or turn off.
