Click the "Tor" button to see what data is visible to eavesdroppers when you're using Tor. The button will turn green to indicate that Tor is on. Click the "HTTPS" button to see what data is visible to eavesdroppers when you're using HTTPS. The button will turn green to indicate that HTTPS is on. When both buttons are green, you see the data that is visible to eavesdroppers when you are using both