/* multirow / multiple tab lines - modified for CustomCSSforFx **************************/
:root {
  --tabs-lines: 3; /* 3 rows, increase for more */
  --tab_min_width_mlt: 176px;
  --tab_max_width_mlt: 176px;
  --tab-min-height_mlt: var(--tab-min-height,32px); /* set own value here, if used without configuration files */
}

.tabbrowser-tab[fadein]:not([pinned]) {
  flex-grow: 1;
  min-width: var(--tab_min_width_mlt) !important;
  max-width: var(--tab_max_width_mlt) !important;
}

.tabbrowser-tab,.tab-background {
  min-height: var(--tab-min-height_mlt);
}

.tabs-newtab-button {
  vertical-align: bottom !important;
  height: var(--tab-min-height_mlt);
  margin-bottom: -1px !important;
}

.tab-stack {
  width: 100%;
}

/* fix tab position */
#tabbrowser-tabs,
#tabbrowser-tabs > .tabbrowser-arrowscrollbox {
  min-height: var(--tab-min-height_mlt) !important;
}
:root[uidensity=touch] .tabbrowser-tab:not([pinned]) .tab-content .close-icon {
  padding-top: 0px !important;
  padding-bottom: 0px !important;
}
/**/

#tabbrowser-tabs .scrollbox-innerbox {
  display: flex;
  flex-wrap: wrap;
  overflow-x: collapse !important;
  overflow-y: auto !important;
  min-height: var(--tab-min-height_mlt);
  max-height: calc( var(--tabs-lines) * var(--tab-min-height_mlt) ) !important;
}

#tabbrowser-tabs .arrowscrollbox-scrollbox {
  overflow-x: collapse;
  overflow: visible; 
  display: block;
}

#tabbrowser-tabs .scrollbutton-up,
#tabbrowser-tabs .scrollbutton-down,
#TabsToolbar #alltabs-button,
.tabbrowser-tab:not([fadein]){
  display: none;
}

#main-window[tabsintitlebar] #tabbrowser-tabs {
  -moz-window-dragging: no-drag !important;
}

.tabbrowser-arrowscrollbox > .arrowscrollbox-overflow-start-indicator:not([collapsed]),
.tabbrowser-arrowscrollbox > .arrowscrollbox-overflow-end-indicator:not([collapsed]) {
  opacity: 0 !important;
}

#tabbrowser-tabs * {
  overflow-x: collapse !important;
}

#main-window[customizing] #tabbrowser-tabs .scrollbox-innerbox {
  display: block !important;
}

#tabbrowser-tabs .scrollbox-innerbox {
  -moz-padding-end: 4px !important;
}

#TabsToolbar[currentset^="tabbrowser-tabs,new-tab-button"] #tabbrowser-tabs .scrollbox-innerbox {
  -moz-padding-end: 0px !important;
}

/* hide private window indicator, window controls and titlebar placeholders */
#main-window[tabsintitlebar] #TabsToolbar .private-browsing-indicator,
#main-window[tabsintitlebar] #TabsToolbar #window-controls,
#main-window[tabsintitlebar] #TabsToolbar .titlebar-spacer[type="pre-tabs"],
#main-window[tabsintitlebar] #TabsToolbar .titlebar-spacer[type="post-tabs"] {
  display: none !important;
}
#TabsToolbar .titlebar-placeholder[type="pre-tabs"],
#TabsToolbar .titlebar-placeholder[type="post-tabs"] {
  opacity: 0 !important;
}

/* hide tab borders set by Firefox 58+ to solve 'blank space below tabs' issue */
.tabbrowser-tab::after,
.tabbrowser-tab::before {
  border-left: unset !important;
  border-image: unset !important;
  border-image-slice: unset !important;
  border: 0 !important;
}

/* Fx66+ fix */
#TabsToolbar #tabbrowser-tabs .tabbrowser-tab:not([pinned]) .tab-close-button {
  visibility: visible !important;
  display: block !important;
}

/* Show Tab Close buttons only when hovered */
#tabbrowser-tabs > .tabbrowser-tab:not([pinned="true"]) > .tab-stack > .tab-content > .tab-close-button {
  visibility: collapse !important;
  opacity: 0 !important;
  transition: all 250ms ease-in-out !important;
}
#tabbrowser-tabs > .tabbrowser-tab:not([pinned="true"]):hover > .tab-stack > .tab-content > .tab-close-button {
  visibility: visible !important;
  opacity: 1 !important;
  transition: all 250ms ease-in-out !important;;
}
#tabbrowser-tabs > .tabbrowser-tab:not([pinned="true"]) > .tab-stack > .tab-content > .tab-close-button {
  display: -moz-box !important;
}

/* Remove pointless thumbnail in the Bookmark popup */
#editBookmarkPanelImage, #editBookmarkPanelFaviconContainer {
    display: none !important;
}