#tabbrowser-tabs, #tabbrowser-tabs > .tabbrowser-arrowscrollbox {
	min-height: 0 !important;
}

/* Thanks to @Speravir for making it work again in the latest versions. */
/*
#tabbrowser-tabs tab[first-visible-tab="true"][last-visible-tab="true"] {
	visibility: collapse;
}*/


#navigator-toolbox{
	visibility: collapse !important; }

/* I don't use tabs so I just hide the new tab button. You should be able to use a similar trick as the rule above with
css siblings selectors if you want to keep it when the tab bar is visible. */
/*
#tabbrowser-tabs .tabs-newtab-button { 
	visibility: collapse !important;
}
*/

#tabbrowser-tabs tab {
	min-height: var(--tab-min-height)
}