Choice of of browsers is a delicate topic. While Firefox offers extremely good extensibiliy, it is somewhat slower than Opera. Therefore, I often switch back and forth between the two. One major annoyance of Opera has always been the behaviour of Ctrl-W that closes a tab and brings you back to the most recently used one. In Firefox you have a the choice of what will happen, and as I found out today, Opera does as well, although somewhat harder to “find”. You have to go into the shortcuts preference settings where you can change the behavior of ‘w ctrl’, as it is called there, to ‘Close Page & Switch to next page’.