Coollris (also know as piclens) is a nice add-on for Firefox that you can install in the browser. If you haven't heard of it, it's a 3D wall with pictures from a specific site you searched for but it can only be used for a few sites like Google, Youtube, Denvart so you can also watch a movie from Youtube.
You use it like this: First you go to the upper right and you click on the "Launch PicLens" incon to activate Coolris then use your scroll to zoom-out & in and use your arrows keys to move to left and right. when you click with your left mouse on a picture then it will enlarge until it's full-size.
https://addons.mozilla.org/en-US/firefox/addon/5579
You use it like this: First you go to the upper right and you click on the "Launch PicLens" incon to activate Coolris then use your scroll to zoom-out & in and use your arrows keys to move to left and right. when you click with your left mouse on a picture then it will enlarge until it's full-size.
https://addons.mozilla.org/en-US/firefox/addon/5579
