/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/autohide_tabstoolbar.css made available under Mozilla Public License v. 2.0 See the above repository for updates as well as full license text. */ /* Hide tabs unless cursor is on top of toolbar */ @keyframes slidein{ from{ margin-top: calc(0px - var(--tab-min-height)) } to{ margin-top: 0 } } @keyframes slideout{ from{ margin-top: var(--tab-min-height) } to{ margin-top: 0 } } #navigator-toolbox:not(:hover) > #titlebar{ -moz-appearance: none !important } #navigator-toolbox:not(:hover) #TabsToolbar:not([customizing]) { visibility: collapse } #navigator-toolbox:hover > #nav-bar:not([customizing]){ animation: slidein ease-out 48ms 1 } #navigator-toolbox:not(:hover) > #nav-bar:not([customizing]){ animation: slideout ease-out 48ms 1 }