Hide Menubar for Thunderbird 1.0.20100121

The Hide Menubar for Thunderbird extension offers you a quick solution to joggle with your menubar and implicitly to optimize your work. To bring your menubar back all you have to do is to press the ALT key and the menu will be temporarily displayed. Requirements:
Ссылка: https://addons...US/thunderbird/downloads/file/76919/hide_menubar-1.0.20100121-fx+tb.xpi?confirmed