Esc = Exit full-screen (or double-click again) - Also works on YouTube.F = Full-screen (double-clicking the screen also works) - Also works on YouTube.Not a keyboard shortcut, but clicking anywhere on the screen also does pause/play.Space bar = Pause/Play (toggle) - Also works on YouTube in certain screen modes.Down arrow = Volume Down - Also works on YouTube.Up arrow = Volume Up - Also works on YouTube.M = Mute/Un-mute (toggle) - Also works on YouTube.My mouse sent me a thank you note when I discovered 'm' and the space bar. Here are the Netflix and some of the YouTube keyboard shortcuts.