/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/overlay_fullscreen_toolbars.css made available under Mozilla Public License v. 2.0 See the above repository for updates as well as full license text. */ /* Makes toolbars appear as overlay instead of pushing down the website in fullscreen mode */ @media (-moz-bool-pref: "browser.fullscreen.autohide"){ :root[sizemode="fullscreen"] #navigator-toolbox{ position: fixed !important; width: 100vw; z-index: 1; transition: margin-top 100ms ease-in-out 600ms; } :root[sizemode="fullscreen"] #navigator-toolbox[style=""], :root[sizemode="fullscreen"] #navigator-toolbox:hover, :root[sizemode="fullscreen"] #navigator-toolbox:focus-within, #mainPopupSet:has(> #appMenu-popup[panelopen="true"]) ~ #navigator-toolbox{ transition-delay: 0ms; margin-top: 0 !important; } }