HoverZoom is one of those Chrome extensions that you wonder how you lived without! This is because a lot of images are shared today using links, like on Twitter. Most websites, like Facebook, show small size images which need to be clicked to view the full size image. HoverZoom makes viewing the full-size image hidden behind links and thumbnails a piece of cake.
On hovering the mouse cursor over any link or image, HoverZoom downloads the full size image and displays it. There is no need to click anything, which reduces the friction of using this operation.
Tried with: HoverZoom 4.29, Chrome 31.0.1650.63 and Ubuntu 12.04