Duolingo, Inc. has appointed John Lilly as a new independent board director and member of the Compensation and Leadership Committee. Mr. Lilly has had a prominent career, spanning over 25 years, during which he’s held various leadership roles in consumer and enterprise technology. He is a venture partner at Greylock Partners, where he led investments in Instagram, Dropbox, Tumblr, Figma and Quip, among others. John is the former CEO and Board Member of Mozilla, the organization behind Firefox, the open-source Web browser. He also co-founded Reactivity, an internet security infrastructure company acquired by Cisco in 2007, where he served as founding CEO and later CTO. Earlier in his career, John held positions on the executive team at Trilogy Software and as a Senior Scientist in Apple’s research labs.