Open notepad. Press a key over and over. If the key-press stops going to notepad then focus has been transferred/stolen. Firefox's Notification Permission dialo

Open notepad. Press a key over and over. If the key-press stops going to notepad then focus has been transferred/stolen. Firefox's Notification Permission dialog has this behavior within the browser. For example go to Reddit or Facebook, start entering text, the notification permission dialog will appear, steal focus, and now your key-presses go into a black hole. The whole concept of focus-theft is an anti-pattern. Interestingly one mobile operating systems originally designed out but has slowly been creeping back in.