Okay I will do that with Ctrl+L to toggle between pathbar and location
bar. I'll leave the view->location bar menu item then so if they set it
it toggles off the pathbar and permenantly replaces it (IE we dont need
another pref then as I have added view->pathbar pref/menuitem already).
I don't think that will work. The view location bar toggles the whole
location bar toolbar, which will include the pathbar. I don't think we
need another preference in addition to the view location bar one.
Furthermore I don't think we should ever expose the term "pathbar" in
the ui.