@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

.bookmark-item[container], treechildren::-moz-tree-image(container) {

fill: green !important;

}
treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksToolbar) {

fill: green !important;

}
treechildren::-moz-tree-image(container, OrganizerQuery_BookmarksMenu) {

fill: green !important;

}
treechildren::-moz-tree-image(container, OrganizerQuery_UnfiledBookmarks) {

fill: green !important;

}
treechildren::-moz-tree-image(container, livemark) {

fill: green !important;

}
.bookmark-item[container][query],
treechildren::-moz-tree-image(container, query) {

fill: #0000FF !important;

} 

 .tab-background {
    border-radius: 8px 8px 0px 0px !important; border-image: none !important;
  }
  .tab-line {
    display: none;
  }