Facebook apps and games will be disabled tomorrow unless their developers convert them to support HTTPS, as the social network makes secure data transfer mandatory.
The social network announced its move to HTTPS in May, part of its bid to make the platform more secure for developers and users. It's much the same as standard HTTP, but with data passed over an encrypted system using SSL.
Concerned developers should follow Facebook's guide to upgrading at the source link below before it disables apps that fail to make the switch before the October 1 deadline.