But there is an old trick that goes all the way back to Windows 3. With no title bar visible, you can’t move the window with the mouse. 'Did you ever suddenly find yourself with a window that is so large that part of it, including the title bar, is off the screen? For example, maybe somebody sent you an oversized picture taken with one of those many-megapixel cameras. This really solves the problem until Thunderbird fixes it directly.
I got to thinking that Windows itself ought to have a window resize function and it does.
