15/08/23 03:29:46.85 jiY4L5RL0.net
旧検索バー(browser.search.showOneOffButtons;false)のやつだよね
手元ではこんな感じでうまく行ってる(Fx 40.0.2)
URLﾘﾝｸ(i.imgur.com)
.searchbar-engine-menuitem:hover > .menu-text,
.searchbar-engine-menuitem:hover > .menu-iconic-left,
.searchbar-engine-menuitem:hover > .menu-iconic-text {
background-color: yellow !important;
color: black !important;
}