"The process of finding and editing photos becomes a snap with the PicMonkey extension. On a website that has pictures that you want to grab, click the PicMonkey button and all of the pictures on the site will appear as buttons. Selecting the picture that you wish to alter and save will pull that picture into a new PicMonkey tab in which you can choose to make modifications to the picture (crop, color, exposure, redeye, add frames and text, themes and more!), and the save to your computer. The service is free. An upgrade gives you some additional features, but the free version is robust enough to meet the needs of most users."
via Beth Holland on Edudemic