Not compatible with Firefox QuantumNot compatible with Firefox Quantum Hide GUI components (menu, navigation bar, tabs, bookmarks, statusbar) with a customizable key shortcut (default is Ctrl-Shift-A)... For small netbook screens! Only with Firefox—Get Firefox Now
![Hide GUI bars :: Add-ons for Firefox](https://cdn-ak-scissors.b.st-hatena.com/image/square/7b30ed1df932f8f3d7905e725adeb92cfda85d58/height=288;version=1;width=512/https%3A%2F%2Faddons.cdn.mozilla.net%2Fuser-media%2Fpreviews%2Ffull%2F40%2F40406.png%3Fmodified%3D1530208689)