For Windows, the keyboard shortcut is Ctrl+Shift+p. Maybe I'm missing something, but could you use that, or have your hotkey program translate your preferred keyboard shortcut to that?

If you really need to have Firefox recognize a different keyboard shortcut, you might need to use the keyconfig extension. See: http://forums.mozillazine.org/viewtopic.php?f=48&t=72994

Thanks very much. I didn't know there was already a key combo for this function. I'd prefer the 2-key step that I wanted over 3-key step, especially as the latter used a letter, which I don't like to use. However, it should be pretty east to remember, so I won't complain. I'll check out that link tomorrow, thanks again.