Facebook's Developer Blog offered an example (pictured at right) of how this new plugin works:
"From the plugin on sites such as Airbnb, people can set the default Facebook audience for activity shared from your app, or manage the settings for stories previously published to Facebook, including selecting an audience or removing it altogether."
These capabilities are already available in Facebook itself, but now users won't need to leave an app to adjust its sharing settings. The plugin is complimentary to the current ability to adjust sharing details in three different places within Facebook: in the Timeline itself, in Facebook's app settings, or its activity log.
This new plugin gives users more convenient control of who gets to see their input. For instance, if a user doesn't want the general public to see what stories he likes in a certain app, or his comments within it, he can adjust that without leaving the application and going back to Facebook.