Move It - Move it can be set to alert you at pre-determined intervals to get up and move. It will provide a random exercise for you to complete before returning to your work.
Time Stats - Time stats can help you to see how much time you are spending on different tasks. It will track the time you spend on each website and will show those results in a pie graph.
Side by Side - This is will allow you to right-click on any link and have it open on the right side of the screen. This is an easy way to see two websites side by side.
Google Black Menu Use this instead of opening up a new tab and clicking on your waffle. You can determine which Google Apps are on your black menu as well as the order that they are listed in. It is a quick way to access your favorites.
Add to Google Drive - Found an image or want to remember a neat website? Save web content directly to your google drive.