Is there a keyboard shortcut in Gmail which fully returns focus to the message list?The help short cut (?) shows a comma , as Move focus to toolbar, but when I move it there, I can't get it back without clicking with the mouse. Similarly, I sometimes get focus placed on the menu of other Google services at the top of the page.In each of these situations, the indicator of the current message moves around with j or k, but if I hit enter, it does not open the message.
Gmail keyboard short for moving focus back to messages
gmail;keyboard shortcuts
Use u to return to the message list. Also, ESC usually removes focus from toolbars, menus and similar which should make Enter work again - but also closes any open Gtalk dialogs. Otherwise just use o to open a message.