/*Make pinned tab width shrink dynamically, similar to unpinned tab width.*/ #tabbrowser-arrowscrollbox:not([overflowing]) .tabbrowser-tab[pinned] { flex-grow: 10; -moz-box-flex: 10; max-width: 32px; } #tabbrowser-arrowscrollbox:not([overflowing]) .tab-content[pinned] { padding: 0px !important; -moz-box-pack: center; } .tab-label-container[pinned] { display: none; }