PirateBrowser is a bundle package of the Tor client (Vidalia), FireFox Portable browser (with foxyproxy addon) and some custom configs that allows you to circumvent censorship that certain countries such as Iran, North Korea, United Kingdom, The Netherlands, Belgium, Finland, Denmark, Italy and Ireland impose onto their citizens. It is a freeware anti-censorship browsing application that's portable and efficient.
Here are some screenshots to illustrate the features and user interface of this application:
Opera Developer
Opera GX
Chromium x64
Safari for Windows
Firefox Portable