works Rated 4 out of 5 stars

I have only given this 4 stars because it could be improved. Mainly in the interface, but otherwise it works fine on Windows 7 64-bit with Firefox v3.6.1.7

A tip for anyone trying it out for the first time:
When entering the url of the website you want to visit into the TOR toolbar, DO NOT enter the "http://" or it will reply that it is not a valid web page/url. Simply put in "www." and then the webpage. This is because it automatically adds the "http://" to the beginning but doesnt check to see if you already have done it yourself.