Websites ‘Leaking’ User Info To Other Firms

Many top websites share their visitors’ names, usernames or other personal information with their partners without alerting users and, in some cases, without knowing they’re doing it, according to a new study from Stanford University.

Many websites “leak” usernames to third-party advertising networks by including usernames in URLs that the ad networks can see in referrer headers, said the study, released Tuesday by Stanford Law School’s Center for Internet and Society. While there’s a debate in legal circles whether usernames are personal information, there’s a growing consensus among computer scientists that Web-based companies can use usernames to identify their owners, said Jonathan Mayer, a Stanford graduate student who led the study.

“The vast majority of usernames are unique,” he said. “Given the prevalence of social networking, often times, once you have a username for a social network, you then also have a person’s real name, possibly a photo, possibly more.”

Other websites share first names, email addresses and other information with advertising or other partners, Mayer said at a privacy conference in Washington. Those identifiers “get associated not just with what you’re doing right now, but get associated with what you’ve done in the past, and what Web browsing activity you may have in the future,” he said.

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Firefox 4 Coming Next Week

Mozilla’s Firefox 4, the latest offering of the second most popular Web browser in the world, will be officially released on March 22, 2011.

It’s been a long time coming. The first Firefox 4 beta was released July 6, 2010. At the time, Mozilla was aiming to deliver a release candidate this past autumn.

Launching several months late isn’t ideal but Google’s release practices have made Firefox’s tardiness look worse. Google launched Chrome 5 on May 21, 2010. On March 8, 2011, Google released Chrome 10. Is Firefox now five generations behind Chrome? Hardly. The four major Web browsers — Chrome 10, Firefox 4, Internet Explorer 9, and Safari 5 — are more comparable and competitive than ever before.

Johnathan Nightingale, director of Firefox development, says Firefox has more than 400 million users worldwide and a 30% global market share.

NetApplications, an Internet metrics company, suggest that figure is closer to 22% and flat, if not falling. The most significant number Nightingale cites is six: “Firefox 4 is fast,” he said. “It’s blazing fast. Six times faster than any Firefox we’ve done before.”

Other browser makers make similar claims too, though some of those claims are more actively disputed than others, like Microsoft’s assertions about hardware acceleration.  Read more……