Before, with the Ice Cream Sandwich sytem, you could hit menu then "Exit" to stop, turn off then leave whatever webpage you were looking at, even your web email page. Now, with the newer Jelly Bean system, there is no "exit" on the browser menu (left lower menu on my Droid Razr Maxx) So, how do I know it's not still "running"? I don't want to rack up more data time if I'm using Verizon's 4G-- in case I'm away from my WiFi. OR, does it automatically SHUT OFF the browser, now in the Jelly Bean system?