On my previous e-mail system, I was able to read the text of an incoming message in the reading pane below the selection of incoming messages without first having to open the incoming message about which I was curious. This had the advantage of allowing me to review and delete messages that appeared to be suspicious to me without first opening them and exposing my computer to the danger of an incoming & unwanted virus, etc. I am not able to do this with the new e-mail system and I an unable to find instructions on how to do this with your "Help" inquiry. Does Firefox have this capability? If so, how do I access it?