Facebook Photo Zoom - Facebook Photo Zoom is a simple, light-weight extension that integrates directly into Facebook so you can see the larger images of photo albums, profile photos and more whenever you hover over a zoomable image!
Easy to use: Hey, sometimes a zoomed photo can just get in the way, but why waste time clicking through to some confusing options screen just to turn things on and off? FBPZ integrates directly into Facebook to allow you to turn the photos off with a simple click, or even faster with a keyboard shortcut.
This is especially useful when there are a lot of images on your friends wall and you just want to "take a look" at the picture quickly.
Feature:
Q: How do I toggle FBPZ on and off?
A: Easy! When FBPZ loads up an icon will appear in the bottom right of Facebook next to your chat bar (see screenshot). Clicking on this icon will toggle FBPZ's functionality. Additionally, an even faster key shortcut exists! Simply pressing the CTRL + SHIFT + Z keys will also toggle its functionality.
According to the developer:
You can rest assured that Facebook Photo Zoom does not access, view, collect, use, or even manipulate any of your data, history or private information, at all.