Prior to installing Drag onto my computer. If I am jumping around between emails, I am able to hit the back button either on the browser, or my mouse to go back to the previous webpage (email in this instance). After installing Drag, it does not matter if I am on the drag view, or the default gmail view, the back button behavior does not function as intended. It is not able to go back to previous emails by selecting the back button. Disabling Drag completely brings the behavior back. This should not be the case.