Rated 5 out of 5 stars

This is a great addon. With a simple shortcut (ctrl+alt+B), you can change the screen colors so that white and green text (green for links) is overlain on a black background. As many of you might agree, this color combination is much easier on the eye than the predominant black text+white background that most websites choose to utilize. The only drawback is that some of the icons and images (eg. the stars on this very review) become invisible. So use with caution on unfamiliar sites.

This review is for a previous version of the add-on (1.9.5).