Adi Kamdar, EFF:
Extension Gives You More Control Over Your Facebook Privacy
By Adi Kamdar
By nature of its popularity, Facebook is inviting developers to customize users' experiences and create useful tools. We're hoping Facebook adopts a policy that allows its users to innovate, create, and—in the spirit of Facebook—hack. Currently, an overly vague Terms of Service has led Facebook to shut down helpful add-ons like Fluff-Busting Purity, which let users configure what news items were shown to them. As FB Purity's developer notes, many of his users stuck around Facebook only because their experience was tailored to their liking.
Often times, these helpful hacks and tools arise from clear needs, such as when Facebook doesn't make it easy to post X or configure Y. In the case of Chat Undetected, users have stepped up to fill a void left by the social network: Facebook should have a way to turn off read receipts.