Rated 4 out of 5 stars

I really like this add-on, but there's one thing which it doesn't do, which is to move a window with no tabs to a tab in another window. I don't have the tab bar present unless I actually have more than one tab. But if I have a window with no other tabs then to move it to another window, I have to open a second blank tab, go back to the first tab, move it, then go back and shut the blank window, which is a real hassle. Is there anyway to move a window when the tab bar isn't there? Maybe a menu option somewhere? I don't want to have the tab bar there all the time because I have a small screen and it takes up space.