When Gary Kovacs ran the New York City marathon this year-his first ever-the chief executive officer of Mozilla wore a T-shirt emblazoned with the logo of the Web browser made by his nonprofit. Spectators shouted "Firefox!" at him as he ran by. The cheers made him proud-and anxious about Mozilla's fate in a smartphone world dominated by corporations like Google. "My thoughts started to take twists and turns," he says. "We cannot have one commercially minded organization shape our lives."
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