Google Chrome Frame makes IE less secure, says Microsoft
To utilize the plug-in, Chrome Frame and Google Chrome must first be installed. Once done, tapping into Chrome is as simple as modifying the URL of a site with a "cf:" preface. In addition, Chrome can also be called by a website using a single HTML tag. According to Google, the plug-in is necessary in order to get IE to support advanced web applications.
While the company is obviously not keen on it, Microsoft also feels that the plug-in makes Internet Explorer less secure. A spokesperson told Ars Technica that Microsoft has "made significant advancements and updates to make our browser safer" and that Google Chrome Frame doubles the potential vulnerability point for malware and scripts.
While part of what Microsoft says sounds like PR talk, it is also logical and makes sense on a technical level. However, as Emil Protalinski pointed out in the Ars Technica article referenced below, the plug-in also works for IE6 and IE7, both of which are much less secure than IE8. In such a situation, the use of Google Chrome Frame might ironically make IE more secure.