Google Chrome had a serious short coming in not having any plug-in or add-on within itself. All the front running browsers such as Firefox (notable for add-ons) and Opera (with widgets) have put plug-ins into great effect to increase the popularity and multiple features. Greasemonkey has been a prime example of that for Firefox. So, as we were speculating, Google came up with Greasemetal (a G-version of Greasemonkey) for its browser Chromium.