>>855 の続き

/* 偽タイトルバーの配置 */
#main-window[tabsintitlebar] #titlebar {
margin-bottom: 0 !important;
height: 20px !important;
}
#main-window[tabsintitlebar] #titlebar-buttonbox {
height: 20px !important;
}
#main-window[tabsintitlebar] #titlebar-min,
#main-window[tabsintitlebar] #titlebar-max,
#main-window[tabsintitlebar] #titlebar-close {
padding: 0 16px !important;
}
/* 偽タイトルバー領域にページタイトルを表示 */
#main-window[tabsintitlebar]::before {
position: absolute;
margin: -22px 0 0 0;
padding: 0 130px 2px 2px;
width: 100%;
height: 20px;
font-size: 12px;
overflow: hidden;
content: url("chrome://branding/content/icon16.png") " " attr(title);
}