CWmike writes "Mozilla executives today took shots at Google for pitching its Chrome Frame plug-in as a solution to Internet Explorer's poor performance, with one arguing that Google's move will result in 'browser soup.' The Mozilla reaction puts the company that builds Firefox on the same side of the debate as rival Microsoft, which has also blasted Google over the plug-in. Mitchell Baker, the former CEO of Mozilla and currently the chairman of the Mozilla Foundation, said in a blog post, 'The overall effects of Chrome Frame are undesirable. I predict positive results will not be enduring and — and to the extent it is adopted — Chrome Frame will end in growing fragmentation and loss of control for most of us, including Web developers.' Baker says Chrome Frame's browser-in-a-browser will confuse users and render some of their familiar tools useless. 'Once your browser has fragmented into multiple rendering engines, it's very hard to manage information across Web sites. Some information will be manageable from the browser you use and some information from Chrome Frame. This defeats one of the most important ways in which a browser can help people manage their [Web] experience.'"