Gmail message windows can stretch far and wide:
And they can be narrowed, spilling text over into the next line, while keeping all text visible.
But at a certain point (about 450px wide), narrowing the window hides the text and the footer toolbar:
This is problematic for those of us who like to write in thin columns or "dock" fully-visible messages at the periphery of the screen.
Is there any way around this? Is there a Chrome extension or preference that lets you resize a Gmail message to even narrower than 450px? And is there a way to save this preference?