The life and career rise of Instagram head Adam Mosseri, the Facebook exec behind 'like' counts disappearing

· Adam Mosseri has been the head of Instagram for over a year, since the photo-sharing app's cofounders abruptly left their jobs at Facebook in September 2018.
· Mosseri, 37, has pushed changes on Instagram meant to curb bullying and improve users' mental health. His most notable measure has been testing the removal of public...