Mitchell David Kapor ( ; born November 1, 1950) is an American entrepreneur best known for his work as an application developer in the early days of the personal computer software industry, later founding Lotus, where he was instrumental in developing the Lotus 1-2-3 spreadsheet. He left Lotus in 1986. In 1990 with John Perry Barlow and John Gilmore, he co-founded the Electronic Frontier Foundation, and served as its chairman until 1994. In 2003, Kapor became the founding chair of the Mozilla Foundation, creator of the open source web browser Firefox. Kapor has been an investor in the personal computing industry, and supporter of social causes via Kapor Capital and the Kapor Center. Kapor serves on the board of SMASH, a non-profit founded by his wife, Freada Kapor Klein, to help underrepresented scholars hone their STEM knowledge while building the networks and skills for careers in tech and the sciences. Early life and education Kapor was born to a Jewish family in Brooklyn, New York, and raised in Freeport, New York on Long Island, where he graduated from high school in 1967. He received a B.A. from Yale College in 1971 and studied psychology, linguistics, and computer science in an interdisciplinary major, also attending the Boston-based Beacon College, which had a satellite campus in Washington, D.C. at the time. He began but did not complete a master's degree at the MIT Sloan School of Management but later served on the faculty of the MIT Media Lab and the University of California, Berkeley School of Information. Career Lotus Kapor and his business partner Jonathan Sachs founded Lotus in 1982 with backing from Ben Rosen. Lotus' first product was presentation software for the Apple II known as Lotus Executive Briefing System. Kapor founded Lotus after leaving his post as head of development at VisiCorp, the distributors of the Visicalc spreadsheet, and selling all his rights to VisiPlot and VisiTrend to VisiCorp. Shortly after Kapor left Visi-Corp, he and Sachs produced an integrated spreadsheet and graphics program. Even though IBM and VisiCorp had a collaboration agreement whereby Visi-Calc was being shipped simultaneously with the PC, Lotus had a clearly superior product. Lotus released Lotus 1-2-3 on January 26, 1983. The name referred to the three ways the product could be used, as a spreadsheet, graphics package, and database manager. In practice the latter two functions were less often used, but 1-2-3 was the