I completely support having Run/Save/Save as & Cancel for downloads. But, when it comes to "Do you, really, want to Close all?"...
Yes, there is some familiarity, it's been around some places for a long time. But, its necessity is, at least, debatable, if not questionable. If want to close 1 or more tabs, hit the tab's X. Want to close the browser (window) hit its X. The question becomes borderline insulting... the browser's X was hit on purpose to close the window... otherwise would have hit Tab Xs. Would seem not to be much of a loss to be without, "Do you, really, want to do what you wanted to do?".
Cheers,
Drew
