#PersonalToolbar{
  --multirow-bmb-n-rows: 6; /* Control how many rows are shown before scrolling */
  --multirow-bmb-row-margin: 1px; /* Control how much spacing is between rows */
  max-height: none !important;
}

#PlacesToolbar > hbox{
  display: block;
  width: 100vw;
}

#PlacesToolbarItems{
  display: flex;
  flex-wrap: wrap;
  /* --uc-bm-padding is defined in autohide_bookmarks_toolbar.css */
  max-height: calc(var(--multirow-bmb-n-rows) * (5px + 1em + (2 * (var(--multirow-bmb-row-margin) + var(--uc-bm-padding,2px))))) !important;
  overflow-y: auto;
  scrollbar-color: var(--lwt-accent-color) var(--toolbar-bgcolor) ;
  scrollbar-width: thin;
}

/* Hide the all-bookmarks button */
#PlacesChevron{ display: none }

/* Add some spacing between rows */
#PlacesToolbarItems > .bookmark-item{ margin: var(--multirow-bmb-row-margin) 3px !important;  }

/* autohide bookmarks */
#main-window #PersonalToolbar {
  visibility: collapse !important;
}
#navigator-toolbox:hover > #PersonalToolbar{
  visibility: visible !important;
}


/* Sidebar tweaks */
/* -------------- */

/* Remove minimum sidebar width limitation */
#sidebar { max-width: none !important; min-width: 12px !important; }
/* Bookmarks sidebar: hide "Search:"
#bookmarksPanel > hbox { display: none !important }
*/
/* Remove SIDEBAR HEADER and CLOSE X */
#sidebar-header { display: none !important;}


/* Tab bar tweaks */
/* -------------- */
/* Show Tab Close buttons only when hovered */
.tabbrowser-tab:not([pinned]):not(:hover) .tab-close-button { visibility: collapse !important; }
.tabbrowser-tab:not([pinned]):hover .tab-close-button { visibility: visible !important; display: block !important; }

/* hides the native tabs */
#TabsToolbar {
  visibility: collapse;
}