Hi there. Thanks for sharing your opinion with the community. I'd like to clarify two things with you about the currently implemented behaviour in Firefox. 1. If you follow a link in one tab, which opens a second tab, the back button will close second tab and bring you back to first tab. So this is what you suggest, I assume? 2. On the Android platform, the philosophy of back navigation transcends single applications. Let's call that "platform back" It means that if you open a link in f.e. your email app, Firefox will open and show that page. Navigating back will bring you back to the email app. If you stopped with your actions on that page, for example by locking your phone, or pressing the home button, Firefox will keep the tab open, but the application you started in might get closed. So when you re-open Firefox directly, there just is nothing to go back to. The place where the user has just been doesn't exist any more. Is it possible that this happened to you?