Doesn't work Rated 1 out of 5 stars
I've used TinEye for a long time. But google's reverse search gives of course a lot more results. I was hoping to use this addon.
Problem is it doesn't seem very competent at detecting layers in pages. Right-clicking the addon icon on this page for instance (https://static-ssl-cdn.addons.mozilla.net/en-US/firefox/images/addon_icon/326822-64.png?modified=1326978449) will instead search for the background (https://static.addons.mozilla.net/media/img/zamboni/global/bg-header.png).
And that was just the first image i tried with this addon.