/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/centered_tab_label.css made available under Mozilla Public License v. 2.0 See the above repository for updates as well as full license text. */ .tab-label-container{ display: grid; justify-content: safe center; align-items: safe center; } .tab-secondary-label{ -moz-box-pack: center; } .tab-label, .tab-secondary-label{ overflow: hidden } .tabbrowser-tab[selected]:not(:hover) .tab-label-container:not([labeldirection="rtl"]), #tabbrowser-tabs:not([closebuttons="activetab"]) .tabbrowser-tab:not(:hover,[pinned]) .tab-label-container:not([labeldirection="rtl"]){ margin-inline-end: 7px; }