Rated 1 out of 5 stars

Doesn't work, the tabs change color but when i go to google. BOOM WHITE AND BRIGHT BACKGROUND

This review is for a previous version of the add-on (0.6.20121115). 

The screenshots show about:home (the tab you get when you click Firefox's Home toolbar button), not Google. To get the dark about:home tab, use this: https://addons.mozilla.org/en-US/firefox/addon/night-launch-companion/