How to get It
Chrome is available for download at http://www.google.com/chrome
How to use it
Never used Chrome before? Getting the console open is simple. On the page you want to work with in Chrome, right click somewhere on the page. You will see an item at the bottom of this menu: Inspect Element. This will open the Developer Console at the bottom of your screen.
For details and tutorials, the Chrome Developers site is a great resource. On the developers site, there is a linkon the left for Documentation. Within this documentation there are details on each panel available. Also, they have links to resources including videos and a forum. There is a getting started video in this resources section.
Once you've chosen to inspect an element, the Elements tab of the console will open with the chosen element hightlighted. You will notice that if you mouse over other elements, they will be highlighted in the screen above and you can switch which element is highlighted in the console by clicking on it.
Chrome has a Network panel that is pretty much equivalent to Firebug's Net tab, but Chrome also has more advanced Timeline and Profiles tools. Below are descriptions of these panels and links to Chrome's detailed information.
Use the Network panel to learn what components your web page or application is requesting from web servers, how long these requests take, and how much bandwidth is required. You can also view the HTTP request and response headers for each of your resources. The Network panel is perfect for helping you speed up page load times. [more]
For advanced timing and speed analysis, the Timeline panel offers in-depth visibility into the various Chrome behind-the-scenes activities. You can learn how long the browser takes to handle DOM events, rendering page layouts, and paint the window. [more]