Rated 3 out of 5 stars
This is one of the best add-ons for Firefox, however with the latest 3.3 version, the Author chose to have the window fade in, this is crap. There is no option that I can find to disable it. Please either remove this fading or provide an option to turn it off. This makes the quick look at a site take considerably longer as you now have to wait for the window to fade in.
Other issues are that other add-ons do not work at all or not correctly in the pop-up window. Examples are Add-Blocker and Greasemonkey.