@leocg There is if you are willing to go to the trouble of actually closing Opera rather than using your device's Back button or merely switching apps. Also there is a setting to dismiss open tabs after 2 hours. I've trained myself to closing the browser, using the Close button on the top of the menu, which also means I don't see any annoying notifications when I'm not using Opera. And if I do want to come back to a tab, I use one of the other methods to dismiss it.
