manifest version 2 is not backward compatible, so most extensions should not update yet. When Chrome 18 is deployed to the stable channel, we will update the do

manifest version 2 is not backward compatible, so most extensions should not update yet. When Chrome 18 is deployed to the stable channel, we will update the docs and begin slowly encouraging developers to transition. In the shorter term, developers who want to prevent their extensions from being trivially detected can use the web_accessible_resources property instead: http://code.google.com/chrome/extensions/dev/manifest.html#web_accessible_resources http://code.google.com/chrome/extensions/dev/manifest.html#w.... This property is available in Chrome 19 and higher and is ignored in older versions.