Benutzerskripte funktionieren seit Version 138 teilweise nicht mehr

// Fügt in den Lesezeichen Ordner ganz oben die Anzahl von Links und Unterordner hinzu.
// 2025.05.29 Bug Fix by Mira Bellenbaum

(function () {
  if (!window.gBrowser) return;

  function setFunction() {
    PlacesViewBase.prototype._mayAddCommandsItems =
      function PVB__mayAddCommandsItems(aPopup) {
        let hasMultipleURIs = false;
        let menuitemCount = 0;
        let menuCount = 0;
        if (aPopup._placesNode.childCount > 0) {
          for (let item of aPopup.children) {
            if (item._placesNode) {
              if (item.localName == "menuitem") {
                menuitemCount++;
              } else if (item.localName == "menu") {
                menuCount++;
              }
            }
          }
          if (menuitemCount > 0 || menuCount > 0) {
            hasMultipleURIs = true;
          }
        }
        if (!hasMultipleURIs) {
          aPopup.setAttribute("nofooterpopup", "true");
          if (aPopup._endOptOpenAllInTabs) {
            aPopup.removeChild(aPopup._endOptOpenAllInTabs);
            aPopup._endOptOpenAllInTabs = null;
            aPopup.removeChild(aPopup._endOptSeparator);
            aPopup._endOptSeparator = null;
          }
          return;
        }

        aPopup.removeAttribute("nofooterpopup");
        if (!aPopup._endOptOpenAllInTabs) {
          aPopup._endOptSeparator = document.createXULElement("menuseparator");
          aPopup._endOptSeparator.className = "bookmarks-actions-menuseparator";
          aPopup.insertBefore(aPopup._endOptSeparator, aPopup.firstChild);
          aPopup._endOptOpenAllInTabs = document.createXULElement("menuitem");
          aPopup._endOptOpenAllInTabs.className = "openintabs-menuitem";
          if (this.options?.extraClasses?.entry) {
            aPopup._endOptOpenAllInTabs.classList.add(
              this.options.extraClasses.entry
            );
          }
          aPopup._endOptOpenAllInTabs.addEventListener("command", function(event) {
            PlacesUIUtils.openMultipleLinksInTabs(this.parentNode._placesNode, event, PlacesUIUtils.getViewForNode(this));
          });

          aPopup._endOptOpenAllInTabs.addEventListener("click", function(event) {
            checkForMiddleClick(this, event);
            event.stopPropagation();
          });

        //  aPopup._endOptOpenAllInTabs.setAttribute(
        //    "oncommand",
        //    "PlacesUIUtils.openMultipleLinksInTabs(this.parentNode._placesNode, event, " +
        //      "PlacesUIUtils.getViewForNode(this));"
        //  );
        //  aPopup._endOptOpenAllInTabs.setAttribute(
        //    "onclick",
        //    "checkForMiddleClick(this, event); event.stopPropagation();"
        //  );

        aPopup.insertBefore(aPopup._endOptOpenAllInTabs, aPopup.firstChild);
        }

        let label = menuCount + " Ordner";
        label += " / " + menuitemCount + " Link";
        if (menuitemCount != 1) {
          label += "s";
        }
        if (menuitemCount == 1) {
          label += " -> Link in Tab öffnen.";
        } else if (menuitemCount > 1) {
          label += " -> Links in Tabs öffnen.";
        }

        aPopup._endOptOpenAllInTabs.setAttribute("label", label);
      };
  }

  setTimeout(function () {
    setFunction();
  }, 50);
})();