Blocking only Facebook Apps

Hello,
We have differents company here, they would only block the Apps from Facebook. Facebook self could be open. It give a methode to block only the Apps by firewall. If we haven't a methode we must block facebook in difference bigger companies...
Greetings
Xaver

Xariffusion Informatik & Telecom
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hm.. have you tried to analyze how facebook implements those apps and just filters them out by some URL filters or so?
-steven

Well, if you can filter by some URL pattern, then block apps.facebook.com.
All the applications are served from that domain.