Hide topbar on fullscreen mode (f11)

[redactedontop]

Hiya!
I'd love a toggle to do this, like other browsers do.

[yZibi]

Add

#main-window[sizemode="fullscreen"] #nav-bar {margin-top: -40px;}

to userChrome.css

located in %appdata%\zen\profiles\ @yourprofile@\chrome\

[TheTrueWhiteOwl]

I would place the following as a toggle in the settings:
Enable Compact Mode on Fullscreen

See also discussion #801