Google Chrome gear." Mozilla said that Chrome's introduction into the web browser market comes as "no real surprise", that "Chrome is not aimed at competing with Firefox", and furthermore that it would not affect Google's revenue relationship with Mozilla. Chrome overtook Firefox in November 2011, in worldwide usage. , according to StatCounter, Google Chrome had 62% worldwide desktop usage share, making it the most widely used web browser, while Firefox had 16% and Internet Explorer had 12%. Along with Safari and Mozilla Firefox, Chrome receives a weekend "bump", which boosts its market share by as much as three percentage points on week-ends,
Firefox Institute of Standards and Technology (NIST), based on data compiled from the National Vulnerability Database (NVD), Firefox was listed as the fifth-most vulnerable desktop software, with Internet Explorer as the eighth, and Google Chrome as the first. InfoWorld has cited security experts saying that, as Firefox becomes more popular, more vulnerabilities will be found, a claim that Mitchell Baker, president of the Mozilla Foundation, has denied. "There is this idea that market share alone will make you have more vulnerabilities. It is not relational at all," she said. In October 2009, Microsoft's security engineers acknowledged that Firefox was vulnerable to