Hmm, there is a duplicate tab option that you get when installing the tab browsing extensions. You can try the clone window extension, it looks like what you want but I have never personally used it:

Thanks, that does exactly what I want. I appreciate the link. I thought it might be possible with tabs, but I don't like tabs.

I'm really starting to like this now. I may give Thunderbird a try. I tried both of these programs a revision or two ago and didn't like them. Now I do.

Now I just need to try to get Firefox to work with my keyboard's iTouch software.

Thanks again.