userChrome.css・userContent.cssスレ Part6©2ch.net

>>988
/*
* Tab width fits to tab title
* from tab_mix_plus-0.5.0.4-fx/chrome/content/overlay/browser.css
*/
.tabbrowser-tabs[orient="horizontal"] > .tabbrowser-tab:not([pinned]) {
-moz-box-flex: 0 !important;
width: auto !important;
}