Google Chrome doesn’t prompt the user for confirmation when trying to close a window or multiple tabs. They claim they don’t do it because they’d rather not interrupt the users when “most of the time they actually want to close the window”. I think this breaks with years of common behaviour present in a multitude of applications and, in my opinion, can be quite harmful specially if you consider a great deal of browsing experiences these days aren’t stateless: it’s a pain if you happen to close a window half way through purchasing something, mid chat or email composition. I like destructive actions to have an extra safety check - so much so that the first alias I add to all my shells is a prompt for rm:
alias rm='rm -i'
I’d like to see a close window/multiple tabs prompt and I’d take it one step further and, as does Safari, request confirmation when attempting to close a tab in which text has been inserted in an input or textarea field.
Despite all this the solutions they’ve put in place to handle tab/window restore, explained by Nick in the video above, are cleverly simple.