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Why don't people care to upgrade to a better, equally free program? Many people simply don't know what a browser is. They have a computer, they click a certain button to get on the Internet, and then they go about their business. They don't think of the Web as a series of files that the browser accepts and renders into this virtual world. Rather, they believe that it's merely a window into this communal universe that looks the same for everyone. "It's really tough to get people to realize that they have a choice [in browsers]," says Brian Rakowski, the product manager for Google Chrome. "And installing software itself is a scary thing for a lot of people."