ComputerWorld: Vista, Mac OS X gain users; Firefox loses market share

 See the article for Vista and Mac OS market stats

Firefox experienced it's largest slip in browser market share since Net Applications began tracking the open-source software in late 2004. Firefox's share fell from 15.42% in April to 14.54% last month. Its loss was mostly Internet Explorer's gain -- IE 7's share climbed by 0.70% -- although Apple's own Safari browser also benefited; its share was up 0.23% in May to 4.82%.

Vista, Mac OS X gain users; Firefox loses market share