Multiple threads in the public Chromium issue-tracker talk about the problems of having a keyboard command that closes everything you're working on so swiftly. And I'm not the only one who's been bamboozled by how easy it is to activate that nuclear option. That's what I'm typically trying to do when I hit 'Q' instead of 'Tab' by mistake. It's infuriatingly close to Ctrl-Shift-Tab, a shortcut that shifts your focus back to the previous tab in your current window. Ctrl-Shift-Q, if you aren't familiar, is a native Chrome shortcut that closes every tab and window you have open without warning. I do - and I've lost count of the number of the times I've accidentally closed all my active Chrome tabs because I hit Ctrl-Shift-Q by mistake. But if you carry an Android phone and also use a Windows computer - whether at work or at home - there's a decent chance you use Chrome on the desktop, too. It's actually related to Chrome for Windows. All right, Android fans: Today's tip is for you.