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 content using Facebook's video platform, and in some cases, achieving higher levels of engagement and views than the original YouTube post. Videos hosted by Facebook are given a higher priority and prominence within the platform and its user experience (including direct embedding within the News Feed and pages), giving a disadvantage to posting it as a link to the original external source. In August 2015, Facebook announced a video-matching technology aiming to identify reposted videos, and also stated its intention to improve its procedures to remove infringing content faster. In April 2016, Facebook implemented a feature known as "Rights Manager",