userChrome.css・userContent.cssスレ Part7

[86 84 2017/11/17(金) 08:37:24.03 ID:6lek7+XZ0]

んー、よく見ると非アクティブタブ同士の間に薄いラインあるか
.tabbrowser-tab::after,
.tabbrowser-tab::before {
opacity: 0 !important;
border-image: unset !important;
border-image-slice: unset !important;
width: unset !important;
}