Meine "Vertical Add-on Bar" funktioniert mit Fx143 nicht mehr?!

// 'Vertical Add-on Bar' script for Firefox by Aris
//
// no 'close' button
// 'toggle' toolbar with 'Ctr + Alt + /' on Windows/Linux or 'Cmd + Alt + /' on macOS
// optional toggle button hides the toolbar temporarily, it gets restored on every restart
// 'Vertical Add-on Bar' entry is only visible in toolbars context menu when in customizing mode
//
// flexible spaces on toolbar work 'vertically'
// toolbar can be on the left or on the right
// toolbar is display horizontally in customizing mode

// [!] Fix for WebExtensions with own windows by 黒仪大螃蟹 (for 1-N scripts)

// Components.utils.import("resource:///modules/CustomizableUI.jsm");
//ChromeUtils.importESModule("resource:///modules/CustomizableUI.sys.mjs");
// ChromeUtils.importESModule("moz-src:///browser/components/customizableui/CustomizableUI.sys.mjs");


var AddonbarVertical = {
  init: function() {

    if (location != 'chrome://browser/content/browser.xhtml')
      return;

    /* blank tab workaround */
    try {
      if(gBrowser.selectedBrowser.getAttribute('blank')) gBrowser.selectedBrowser.removeAttribute('blank');
    } catch(e) {}

    var addonbar_v_label = 'Vertical Add-on Bar'; // toolbar name
    var button_label = 'Toggle vertical Add-on Bar'; // Toggle button name
    var addonbar_v_togglebutton = true; // display toggle button for vertical toolbar (true) or not (false)
    var addonbar_v_on_the_left = false; // display vertical toolbar on the left (true) or the right (false)
    var style_addonbar_v = true; // apply default toolbar appearance/colors to vertical add-on bar
    var addonbar_v_width = '22px'; // toolbar width
    var compact_buttons = true; // compact button size (true) or default button size (false)

    try {
     if(document.getElementById('toolbox_abv') == null && document.getElementById('addonbar_v') == null) {
      var toolbox_abv = document.createXULElement('toolbox');
      toolbox_abv.setAttribute('orient','horizontal');
      toolbox_abv.setAttribute('id','toolbox_abv');
      toolbox_abv.setAttribute('insertbefore','sidebar-box');

      var tb_addonbarv = document.createXULElement('toolbar');
      tb_addonbarv.setAttribute('id','addonbar_v');
      tb_addonbarv.setAttribute('customizable','true');
      tb_addonbarv.setAttribute('class','toolbar-primary chromeclass-toolbar browser-toolbar customization-target');
      tb_addonbarv.setAttribute('mode','icons');
      tb_addonbarv.setAttribute('iconsize','small');
      tb_addonbarv.setAttribute('toolboxid','navigator-toolbox');
      tb_addonbarv.setAttribute('orient','vertical');
      tb_addonbarv.setAttribute('flex','1');
      tb_addonbarv.setAttribute('context','toolbar-context-menu');
      tb_addonbarv.setAttribute('toolbarname', addonbar_v_label);
      tb_addonbarv.setAttribute('label', addonbar_v_label);
      tb_addonbarv.setAttribute('lockiconsize','true');
      tb_addonbarv.setAttribute('defaultset','spring');

      toolbox_abv.appendChild(tb_addonbarv);

      CustomizableUI.registerArea('addonbar_v', {legacy: true});

      setTimeout(function(){
        CustomizableUI.registerArea('addonbar_v', {legacy: true});
      },2000);

      CustomizableUI.registerToolbarNode(tb_addonbarv);

      if(addonbar_v_on_the_left) {
        document.getElementById('browser').insertBefore(toolbox_abv,document.getElementById('browser').firstChild);
      }
      else {
        document.getElementById('browser').appendChild(toolbox_abv);
      }

        var observer = new MutationObserver(function(mutations) {
        mutations.forEach(function(mutation) {
          try {
            if(document.querySelector('#browser').getAttribute('hidden') || document.querySelector('#main-window').getAttribute('customizing')) {
              document.querySelector('#addonbar_v').setAttribute('orient','horizontal');
              document.querySelector('#navigator-toolbox').appendChild(document.querySelector('#addonbar_v'));
            }
            else  {
              document.querySelector('#addonbar_v').setAttribute('orient','vertical');
              document.querySelector('#toolbox_abv').appendChild(document.querySelector('#addonbar_v'));

            }
          } catch(e){}
        });
      });

      observer.observe(document.querySelector('#main-window'), { attributes: true, attributeFilter: ['customizing'] });

      try {
        Services.prefs.getDefaultBranch('browser.vaddonbar.').setBoolPref('enabled',true);
        setToolbarVisibility(document.getElementById('addonbar_v'), Services.prefs.getBranch('browser.vaddonbar.').getBoolPref('enabled'));
        setToolbarVisibility(document.getElementById('toolbox_abv'), Services.prefs.getBranch('browser.vaddonbar.').getBoolPref('enabled'));
      } catch(e) {}

      if(addonbar_v_togglebutton) {

        CustomizableUI.createWidget({
            id: 'togglebutton_addonbar_v', // button id
            defaultArea: CustomizableUI.AREA_NAVBAR,
            removable: true,
            label: button_label, // button title
            tooltiptext: button_label, // tooltip title
            onClick: function(event) {
              if(event.button==0) {
                var windows = Services.wm.getEnumerator(null);
                while (windows.hasMoreElements()) {
                  var win = windows.getNext();

                  var vAddonBar = win.document.getElementById('addonbar_v');
                  setToolbarVisibility(vAddonBar, vAddonBar.collapsed);

                  var vAddonBarBox = win.document.getElementById('toolbox_abv');
                  setToolbarVisibility(vAddonBarBox, vAddonBarBox.collapsed);

                  Services.prefs.getBranch('browser.vaddonbar.').setBoolPref('enabled',!vAddonBar.collapsed);

                  if(!vAddonBar.collapsed)
                    win.document.querySelector('#togglebutton_addonbar_v').setAttribute('checked','true');
                  else win.document.querySelector('#togglebutton_addonbar_v').removeAttribute('checked');
                }
              }
            },
            onCreated: function(button) {
              if(Services.prefs.getBranch('browser.vaddonbar.').getBoolPref('enabled'))
                button.setAttribute('checked','true');
              return button;
            }

        });
      }

      // Press 'Ctr + Alt + /' on Windows/Linux and 'Cmd + Alt + /' on macOS to toggle vertical add-on bar
      var key = document.createXULElement('key');
      key.id = 'key_toggleVAddonBar';
      key.setAttribute('key', '/');
      key.setAttribute('modifiers', 'accel,alt');
      key.addEventListener('command', () => {
      var windows = Services.wm.getEnumerator(null);
        while (windows.hasMoreElements()) {
          var win = windows.getNext();
          var vAddonBar = win.document.getElementById('addonbar_v');
          setToolbarVisibility(vAddonBar, vAddonBar.collapsed);
          var vAddonBarBox = win.document.getElementById('toolbox_abv');
          setToolbarVisibility(vAddonBarBox, vAddonBarBox.collapsed);
          Services.prefs.getBranch('browser.vaddonbar.').setBoolPref('enabled',!vAddonBar.collapsed);
          if(!vAddonBar.collapsed)
            win.document.querySelector('#togglebutton_addonbar_v').setAttribute('checked','true');
            else win.document.querySelector('#togglebutton_addonbar_v').removeAttribute('checked');
          }
        });
      // key.setAttribute('oncommand',`
       //  var windows = Services.wm.getEnumerator(null);
        // while (windows.hasMoreElements()) {
          // var win = windows.getNext();
          // var vAddonBar = win.document.getElementById('addonbar_v');
          // setToolbarVisibility(vAddonBar, vAddonBar.collapsed);
          // var vAddonBarBox = win.document.getElementById('toolbox_abv');
          // setToolbarVisibility(vAddonBarBox, vAddonBarBox.collapsed);
          // Services.prefs.getBranch('browser.vaddonbar.').setBoolPref('enabled',!vAddonBar.collapsed);
          // if(!vAddonBar.collapsed)
            // win.document.querySelector('#togglebutton_addonbar_v').setAttribute('checked','true');
          // else win.document.querySelector('#togglebutton_addonbar_v').removeAttribute('checked');
        // }
      // `);
      document.getElementById('mainKeyset').appendChild(key);

     }
    } catch(e) {}

    // style toolbar & toggle button
    var addonbar_v_style = '';
    var togglebutton_addonbar_v_style = '';

    if(style_addonbar_v) {
      var end_border =`
        #addonbar_v { \
            border-inline-end: 1px solid var(--sidebar-border-color,rgba(0,0,0,0.1)) !important; \
        } \
      `;

      if(!addonbar_v_on_the_left) {
        end_border =`
          #addonbar_v { \
            border-inline-start: 1px solid #B2B2B2 !important; \
          } \
        `;
      }

      addonbar_v_style =` \
        #addonbar_v { \
          appearance: none !important; \
          background-color: var(--toolbar-bgcolor); \
          background-image: var(--toolbar-bgimage); \
          background-clip: padding-box; \
          color: var(--toolbar-color, inherit); \
          padding-bottom: 1px !important; \
        } \
        :root[lwtheme] #addonbar_v { \
          background: var(--lwt-accent-color) !important; \
        } \
        :root[lwtheme][lwtheme-image='true'] #addonbar_v { \
          background: var(--lwt-header-image) !important; \
          background-position: 0vw 50vh !important; \
        } \
        #main-window:not([customizing]) #toolbox_abv:not([collapsed='true']), \
        #main-window:not([customizing]) #addonbar_v:not([collapsed='true']) { \
          min-width: `+addonbar_v_width+`; \
          width: `+addonbar_v_width+`; \
          max-width: `+addonbar_v_width+`; \
        } \
        #main-window[chromehidden='menubar toolbar location directories status extrachrome '] #toolbox_abv:not([collapsed='true']), \
        #main-window[chromehidden='menubar toolbar location directories status extrachrome '] #addonbar_v:not([collapsed='true']), \
        #main-window[sizemode='fullscreen'] #toolbox_abv:not([collapsed='true']), \
        #main-window[sizemode='fullscreen'] #addonbar_v:not([collapsed='true']) { \
          min-width: 0px; \
          width: 0px; \
          max-width: 0px; \
        } \
        #main-window[customizing] #addonbar_v { \
          outline: 1px dashed !important; \
          outline-offset: -2px !important; \
        } \
        #addonbar_v toolbarbutton { \
          min-height: 20px !important; \
          max-height: 20px !important; \
          min-width: 20px !important; \
          max-width: 20px !important; \
          background-color: #474747 !important; \
          margin: 1px 1px 0 1px !important; \
        } \
        #addonbar_v toolbar .toolbarbutton-1 { \
          min-height: 22px !important; \
          max-height: 22px !important; \
          min-width: 22px !important; \
          max-width: 22px !important; \
          background-color: #474747 !important; \
          margin: 1px 1px 0 1px !important; \
        } \
        #addonbar_v toolbarbutton:hover, \
        #addonbar_v toolbar .toolbarbutton-1:hover { \
          background-color: #D1E2F2 !important; \
          color: #000 !important; \
          fill: #000 !important; \
        } \
        #addonbar_v toolbarbutton#uc-restart { \
          background-color: #F20 !important; \
        } \
        #addonbar_v toolbarbutton#uc-restart image { \
          fill: #FFF !important; \
        } \
        #addonbar_v toolbarbutton#uc-restart:hover { \
          background-color: #D1E2F2 !important; \
        } \
        #addonbar_v toolbarbutton#uc-restart:hover image { \
          fill: #F20 !important; \
        } \
        #addonbar_v toolbarbutton#privatebrowsing-button { \
          background-color: #8000D7 !important; \
        } \
        #addonbar_v toolbarbutton#privatebrowsing-button image { \
          fill: #FFF !important; \
        } \
        #addonbar_v toolbarbutton#privatebrowsing-button:hover { \
          background-color: #D1E2F2 !important; \
        } \
        #addonbar_v toolbarbutton#privatebrowsing-button:hover image { \
          fill: #8000D7 !important; \
        } \
        #addonbar_v toolbarbutton#restart-button { \
          background-color: #F20 !important; \
        } \
        #addonbar_v toolbarbutton#restart-button:hover { \
          background-color: #D1E2F2 !important; \
        } \
        #addonbar_v #cookieautodelete_kennydo_com-browser-action { \
          min-height: 33px !important; \
        } \
        #addonbar_v #cookieautodelete_kennydo_com-browser-action > .toolbarbutton-badge-stack { \
          margin-top: -13px !important; \
        } \
        #addonbar_v #cookieautodelete_kennydo_com-browser-action > .toolbarbutton-badge-stack .toolbarbutton-badge { \
          min-width: 18px !important; \
          border-radius: 0px !important; \
          margin-top: 20px !important; \
          margin-right: 1px !important; \
        } \
        #addonbar_v #cookieautodelete_kennydo_com-browser-action:hover > .toolbarbutton-badge-stack .toolbarbutton-badge { \
          background-color: #D1E2F2 !important; \
          color: #000 !important; \
        } \
        #addonbar_v > toolbarbutton#restart-button .toolbarbutton-icon { \
          margin: 3px !important; \
        } \
        #addonbar_v > toolbarbutton#print-toolbarbutton { \
          border-radius: 0 !important; \
          border: 0 !important; \
          background-color: #474747 !important; \
        } \
        #addonbar_v > toolbarbutton#print-toolbarbutton:hover { \
          background-color: #D1E2F2 !important; \
        } \
        #unified-extensions-button[hidden]{ \
            visibility: visible !important; \
            display: flex !important; \
        } \
        #addonbar_v toolbaritem separator { \
            display: none !important; \
        } \
        #main-window:not([customizing]) #addonbar_v > toolbaritem { \
          writing-mode: vertical-rl !important; \
          text-orientation: mixed !important; \
          transform: rotate(0deg) !important; \
        } \
        #main-window:not([customizing]) #addonbar_v > toolbaritem menupopup { \
          max-height: 170px !important; \
          max-width: 170px !important; \
          transform: rotate(-90deg) !important; \
        } \
        #main-window:not([customizing]) #addonbar_v > toolbaritem .toolbarbutton-badge { \
          transform: rotate(-90deg) !important; \
          position: absolute !important; \
          padding: 1px 2px !important; \
          top: -4px !important; \
        } \
        #main-window:not([customizing]) #addonbar_v #search-container, \
        #main-window:not([customizing]) #addonbar_v #wrapper-search-container { \
          flex: unset !important; \
        } \
        #main-window:not([customizing]) #addonbar_v #search-container { \
          min-width: unset !important; \
          width: unset !important; \
          height: 100px !important; \
          &[width] { \
            flex: unset !important; \
          } \
        } \
        #main-window:not([customizing]) #addonbar_v #zoom-reset-button > .toolbarbutton-text { \
          min-width: unset !important; \
          min-height: unset !important; \
        } \
        #main-window:not([customizing]) #addonbar_v #zoom-reset-button:not([label]) { \
          display: none !important; \
        } \
        #main-window:not([customizing]) #addonbar_v .toolbarbutton-combined-buttons-dropmarker > .toolbarbutton-icon { \
          width: unset !important; \
          height: 16px !important; \
        } \
        #addonbar_v #aboutabout-ToolBarButton:hover {\
          list-style-image: url("file:///H:/Profile/Firefox/Fx57-H-Default/chrome/icons/a-a-b.png") !important; \
        } \
        `+end_border+`
      `;
    }

    var addonbar_right = '';

    if(!addonbar_v_on_the_left) {
        addonbar_right =`
          #toolbox_abv{ \
            order: 10 !important; \
          } \
        `;
    }

    if(addonbar_v_togglebutton) {
      togglebutton_addonbar_v_style =`
        #togglebutton_addonbar_v .toolbarbutton-icon { \
          list-style-image: url('chrome://browser/skin/sidebars.svg'); \
          fill: #FF3322; \
        } \
        #togglebutton_addonbar_v[checked] .toolbarbutton-icon { \
          list-style-image: url('chrome://browser/skin/sidebars.svg'); \
          fill: #00A600; \
        } \
        /*#togglebutton_addonbar_v .toolbarbutton-icon { \
          list-style-image: url('chrome://browser/skin/forward.svg'); \
          fill: red; \
        } \
        #togglebutton_addonbar_v[checked] .toolbarbutton-icon { \
          fill: green; \
        } \
        #togglebutton_addonbar_v { \
          background: url('chrome://browser/skin/back.svg') no-repeat; \
          background-size: 35% !important; \
          background-position: 10% 70% !important; \
        } \
        #togglebutton_addonbar_v[checked] { \
          transform: rotate(180deg) !important; \
          background: url('chrome://browser/skin/back.svg') no-repeat; \
          background-position: 10% 30% !important; \
        }*/ \
      `;
    }

    var compact_buttons_code = '';

    if(compact_buttons)
      compact_buttons_code = `
        #addonbar_v toolbarbutton .toolbarbutton-icon { \
          padding: 0 !important; \
          width: 16px !important; \
          height: 16px !important; \
        } \
        #addonbar_v .toolbarbutton-badge-stack { \
          padding: 0 !important; \
          margin: 0 !important; \
          width: 16px !important; \
          min-width: 16px !important; \
          height: 16px !important; \
          min-height: 16px !important; \
        } \
        #addonbar_v toolbarbutton .toolbarbutton-badge { \
          margin-top: 0px !important; \
          font-size: 8px !important; \
        } \
      `;

    var uri = Services.io.newURI('data:text/css;charset=utf-8,' + encodeURIComponent(''+addonbar_v_style + togglebutton_addonbar_v_style + addonbar_right + compact_buttons_code), null, null);

    var sss = Components.classes['@mozilla.org/content/style-sheet-service;1'].getService(Components.interfaces.nsIStyleSheetService);
    sss.loadAndRegisterSheet(uri, sss.AGENT_SHEET);

  }

}

/* initialization delay workaround */
document.addEventListener('DOMContentLoaded', AddonbarVertical.init(), false);
/* Use the below code instead of the one above this line, if issues occur */
/*
setTimeout(function(){
  AddonbarVertical.init();
},2000);
*/