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
Facebook July 2010 announcement, half of the site's membership used Facebook daily, for an average of 34 minutes, while 150 million users accessed the site by mobile. A company representative called the milestone a "quiet revolution." Mark Zuckerberg announced to the media at the start of October 2012 that Facebook had passed the monthly active users mark of one billion. The company's data also revealed 600 million mobile users, 219 billion photo uploads, and 140 billion friend connections. This continued to grow, reaching 1.19 billion monthly active users in October 2013, 1.44 billion users in April 2015, of which 1.25 billion