From the developer: "How do I keep my surfing on the net secret from people around me? How do I keep my wife/husband from knowing what I'm surfing on the net? How do I avoid popup advertises when I surf the net? This is not a fancy web browser, what it does is for your privacy from people around you, at home or office. If you don't like people nosy about what you're browsing on the net, or when you're surfing at the sites that you do not want people around you to know. You just press a combination of keys (called Secret keys or Hot keys) then this web browser disappeared on screen, not even on the taskbar. When they go away, all you have to do is again to press a different set of combination of keys and this browser will come back to life again."