/* Remove minimize window button */ @media (-moz-bool-pref: "uc.my-preference.hide-minimize") { .titlebar-min { display: none; } } /* Remove maximize window button */ @media (-moz-bool-pref: "uc.my-preference.hide-maximize") { .titlebar-max { display: none; } .titlebar-restore { display: none; } } /* Remove close window button */ @media (-moz-bool-pref: "uc.my-preference.hide-close") { .titlebar-close { display: none; } } @media (-moz-mac-big-sur-theme: 1) { hbox.titlebar-buttonbox-container { display: none !important; } }