If he has a brown "Firefox" tab at top left, click options>Menu Bar. That will bring up the menu bar so you can turn on the tool bars. The Bookmarks toolbar is the same as the old Address bar - you can type in addresses or click a bookmark and it puts the address in. Try customizing using the view>toolbars>customize option. That's how I got most of my old buttons back where they were.
“If he has a brown “Firefox” tab at top left”
I know what you are talking about. I have seen it before. It is not even there in this case.