VisBug - Google Chrome Extension for Designers
Google launched new developer tool called VisBug that simplifies the task of editing a web page using a simple point-and-click interface.
VisBug is currently available as a Chrome extension that can be installed from the main Chrome Web Store.
Google engineers likened it to Firebug, the now-defunct Firefox add-on that was ported to Chrome, and eventually inspired Chrome's built-in Developer Tools panel.
The extension is rather raw for the moment, still lacking many useful controls.
But it is good to tinker with designs and see how it would work .