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
Like button or neutrally. Other websites include more complex Web content voting systems, for example five stars or reaction buttons to show a wider range of emotion to the content. The like button was first announced as a FriendFeed feature on October 30, 2007 and was popularized within that community. Later the feature was integrated into Facebook before FriendFeed was acquired by Facebook August 10, 2009. The Facebook like button is designed as a hand giving "thumbs up". It was originally discussed to have been a star or a plus sign, and during development the feature was referred to as "awesome" instead