Another dirty trick they use is refusing to fix the button to turn off apps, plugins, and Facebook integration on other websites. Log in to Facebook, click the down arrow next to your name, click "Privacy Settings", click edit settings next to "Ads, Apps, and Websites", then in "Apps you use" click "Turn off". You will see this error:

"There was an error while disabling applications and websites. Please try again."

I reported this to Facebook three months ago and haven't heard anything back. This has been broken for three months. I believe it is intentionally broken. Shame on you Facebook!