I want the Opera 12 like "Alert on Exit" option
I can't find any option for "Alert on Exit" function, that contents the Opera 12. It's very annoying, if I close accidentally the Opera Next wit its many tabs.
(For example, if I have many windows "cascaded", and I can't see, which Close button belongs to which window.)
It was very useful (and still is, since O12 is my default browser).