Facebook June 2010. After extensive testing and years of questions from the public about whether it had an intention to incorporate a "Dislike" button, Facebook officially rolled out "Reactions" to users worldwide on February 24, 2016, letting users long-press on the like button for an option to use one of five pre-defined emotions, including "Love", "Haha", "Wow", "Sad", or "Angry". Reactions were also extended to comments in May 2017. Facebook Messenger is an instant messaging service and software application. Originally developed as Facebook Chat in 2008, the company revamped its messaging service in 2010, and subsequently released standalone iOS and Android
Criticism of Facebook graphic content, requiring users to explicitly confirm that they wish to see the material. Facebook Live, introduced in August 2015 for celebrities and gradually rolled out for regular users starting in January 2016, lets users broadcast live videos, with Facebook's intention for the feature to be presenting public events or private celebrations. However, the feature has been used to record multiple crimes, deaths, and violent incidents, causing significant media attention. Facebook has received criticism for not removing videos faster, and Facebook Live has been described as a "monster [Facebook] cannot tame" and "a gruesome crime scene for murders". In response,