Beiträge von Rob

// 'MultiRowTabs.uc.js' V02 by BrokenHeart
// based on 'MultiRowTab_LiteforFx48.uc.js' from 'http://space.geocities.yahoo.co.jp/gl/alice0775' (Alice0775)
// Thanks to aborix...

"use strict";

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

    // ----------------------------
    // --- User-Settings: Start ---
    // ----------------------------
                                                // Position der Tab-Leiste:
                                                //
    var nTabbarPosition         = 1;            // [1] Tab-Leiste ist oberhalb aller Symbolleisten
                                                // [2] Tab-Leiste ist unterhalb aller Symbolleisten, aber über dem Inhaltsbereich
                                                // [3] Tab-Leiste ist vertikal auf der linken Seite 
                                                // [4] Tab-Leiste ist vertikal auf der linken Seite - Tableiste wird erst angezeigt bei Mausbewegung an den linken Rand (Autohide/Autopopup) 
                                                // [5] Tab-Leiste ist vertikal auf der rechten Seite
                                                // [6] Tab-Leiste ist unterhalb des Inhaltsbereichs 

                                                // Tab-Größenangaben 
                                                //                                                
    var nTabWidth               = 190;          // Breite der einzelnen Tabs in Pixeln
    var nTabHeight              = 24;           // Höhe der einzelnen Tabs in Pixeln
    var nTabMargin              = 1;            // Abstand zwischen den Tab-Zeilen in Pixeln   
    
                                                // sonstige Einstellungen
                                                // 
    var nTabLines               = 3;            // Anzahl der sichtbaren Tab-Zeilen, darüber hinaus wird gescrollt <nur bei horizontaler Ausrichtung (Position:[1],[2],[6]) - sonst keine Funktion> 
    var bTabScrollbar           = true;            // [true] Scrollbar für Tab-Leiste anzeigen, [false] Keine Scrollbar für Tab-Leiste anzeigen (Achtung: [false] = kein Scrollen mehr bei 'drag&drop' von Tabs!)
    var bTabTooltips            = true;         // [true] Tab-Tooltips werden angezeigt, [false] Tab-Tooltips werden nicht angezeigt
    
                                                // Tab-Schließen-Button
                                                //
    var bTabCloseButton         = true;         // [true] Tab-Schließen-Button anzeigen, [false] Tab-Schließen-Button verbergen
    var bTabCloseButRounded     = false;        // [false] quadratische Darstellung, [true] abgerundete Darstellung
    var nTabCloseButTransparency= 0.85;         // Transparenzwert des Tab-Schließen-Button in Prozent. Wertebereich: [0]=vollständig durchscheinend bis [1]=vollständig deckend (z.B [0.75])
    var nTabCloseIconNr         = 1;            // [0] Standard-Icon wird angezeigt
                                                // [1] rotes Icon mit weißem Kreuz wird angezeigt
                                                // [2] schwarzes Icon mit weißem Kreuz wird angezeigt
    var nTabCloseButSize        = 18;           // Höhe und Breite des Tab-Schließen-Buttons in Pixeln
                                                
                                                // FavIcon
                                                //
    var nFavIconSize            = 16;           // Höhe und Breite des 'FavIcons' und der Ladeanimation,[16] = Standard    
    
                                                // 'Throbber'-Animation
                                                //
    var bNewThroberAnimation    = true;         // [true] Alternative 'Throbber'-Animation auswählen, [false] Standard 'Throbber'-Animation beibehalten
  
                                                // Hintergrundfarbe der Tabs (für einfarbige Darstellung müssen die RGB-Farbwerte 1 und 2 jeweils identisch sein)
                                                //
    var strTabSelColor1         = "103,171,224";// RGB-Farbwert1 selektierter Tab
    var strTabSelColor2         = "30,78,115";  // RGB-Farbwert2 selektierter Tab 
    var strTabNotSelColor1      = "54,72,86";    // RGB-Farbwert1 nicht selektierter Tab
    var strTabNotSelColor2      = "28,32,44";    // RGB-Farbwert2 nicht selektierter Tab
    var nTabTransparency        = 1;            // Transparenzwert des unselektierten Tab Hintergrundes. Wertebereich: [0]=vollständig durchscheinend bis [1]=vollständig deckend (z.B [0.75])
    
                                                // Schriftart und Textdarstellung der Tabs 
                                                //
    var strTabFontName          = "Arial";      // Name der Schriftart
    var strTabFontColorSel      = "255,255,255";// RGB-Farbwert der Schrift des selektierten Tabs
    var strTabFontColorNotSel   = "215,215,215";// RGB-Farbwert der Schrift des nicht selektierten Tabs
    var nTabFontWeight          = 500;          // Stärke der Schrift: Wertebereich: [100] = sehr dünn bis [900] = sehr dick(bold). [500] = normal
    var nTabFontSize            = 12;           // Größe/Höhe der Schrift in Pixeln
    var bTabFontTextShadow      = true;         // [true] Text wird mit Schatteneffekt ausgegeben, [false] Text wird ohne Schatteneffekt ausgegeben. (Effekt nur bei selektierten Tabs!)
    var bMarkUnreadTab          = false;        // [true] Kursive Schrift für ungelesene Tabs, [false] ungelesene Tabs werden nicht hervorgehoben
                                                    
                                                // Rahmen um einzelne Tabs
                                                //
    var nTabBorderWidth         = 0;            // Breite des Tab-Rahmen ([0] = kein sichtbarer Rahmen)
    var nTabBorderRadius        = 0;            // Radius für abgerundete Ecken des Tabs ([0] = rechteckig, [80] = ideal abgerundet ). 
    var strTabBorderColor       = "128,128,128";// RGB-Farbwert des Rahmens
    
                                                // Neuer-Tab-Button
                                                //
    var strNewTabButtonColor    = "255,255,255";// RGB-Farbwert des '+'-Zeichens
                                                
                                                // Hintergrund der Tab-Leiste (für einfarbige Darstellung müssen die RGB-Farbwerte 1 und 2 jeweils identisch sein)
                                                //
    //var strTabBarBgColor1       = "15,24,27";   // RGB-Farbwert1 für Hintergrund der Tab-Leiste
    //var strTabBarBgColor2       = "96,123,134"; // RGB-Farbwert2 für Hintergrund der Tab-Leiste
    
    var strTabBarBgColor1       = "21,21,12";   // RGB-Farbwert1 für Hintergrund der Tab-Leiste
    var strTabBarBgColor2       = "62,75,84";   // RGB-Farbwert2 für Hintergrund der Tab-Leiste
    
    
    var nTabBarTransparency     = 1;             // Transparenzwert des Tab-Leisten Hintergrundes. Wertebereich: [0]=vollständig durchscheinend bis [1]=vollständig deckend
    var strTabBarBgImagePath    = "";             // Absoluter Dateipfad zu einem gepeicherten Bild (z.B.: "D://Bilder//Firefox//Hintergrund.jpg" ) 
                                                // "D://Programme%20(Portable)//Firefox%20Portable//FireFox%20ESR%2091//Profilordner//chrome//image//NavToolbarBackground02.png"           
    var bTabBarBgImageRepeat    = false;        // [true] Bild wird für den gesamten Bereich mehrfach nebeneinander angezeigt, [false] Bild wird nur einmal angezeigt (Position: linke/obere Ecke)  
    
                                                // Einstellungen für vertikale Tab-Leiste
                                                //
    var nVerticalTabbarWidth    = 215;          // Breite der Vertikalen Tab-Leiste in Pixeln <nur bei vertikaler Ausrichtung (Position:[3],[4],[5]) - sonst keine Funktion> 
    var nVerticalAutoPopupHover = 2;            // Abstand zum linken Fensterrand in Pixeln, ab der die vertikale Tab-Leiste sichtbar gemacht wird <Position[4] - sonst keine Funktion> 
    var nVerticalAutoPopupAnim  = 0.5;          // Dauer der Animation beim 'Herausschieben' des vertikalen Tab-Leiste in Sekunden ([0] = keine Animation) <Position[4] - sonst keine Funktion>
    
                                                // Einstellungen für Maus-Bedienung
                                                //
    var bTabWheel               = false;        // [true]: Tab-Wheel-Selection(=Selektieren des nächsten/vorherigen Tabs mit dem Mausrad) einschalten, [false]: Tab-Wheel-Selection ausschalten 
    var bPageScroll             = true;         // [true]: seitenweises Scrollen, [false]: zeilenweises Scrollen
    var bDblclickOnTabbarNewTab = true;        // [true] Doppel-Klick über Tabbar öffnet neuen Tab, [false] Funktion wird nicht ausgeführt
    var bDblclickOnTabReloadTab = true;         // [true] Doppel-Klick über Tab lädt diesen neu, [false] Funktion wird nicht ausgeführt

    
    // ----------------------------
    // --- User-Settings: Ende     ---
    // ----------------------------    

// 'Alternative search bar' script for Firefox 91+ by Aris
//
// Thanks to UndeadStar (aka BoomerangAide) for Fx 69+ improvements
// https://github.com/Aris-t2/CustomJSforFx/issues/11
//
// Thanks to samehb (aka Sameh Barakat) for Fx 68-75+ improvements 
// https://github.com/Aris-t2/CustomJSforFx/issues/11
//
// Thanks to anomiex for the setIcon workaround on Fx 77+
// https://github.com/Aris-t2/CustomJSforFx/issues/33
//
// Idea based on 'search revert' script by '2002Andreas':
// https://www.camp-firefox.de/forum/viewtopic.php?f=16&t=112673&start=2010#p1099758
//
// Initial "old search" script ported from old Firefox versions by Aris
//
//
// Feature (not optional): search glass is always visible at search bars end (like with "old" search)
// Feature (not optional): search button shows current search engines icon (like with "old" search)
// Feature (not optional): search buttons dropmarker is always visible (like with "old" search)
//
// Option: clear search input after search
// Option: revert to first search engine in list after search
// Option: old search engine selection popup
// Option: hide 'add engines' '+' indicator
// Option: hide 'oneoff' search engines (engines at popups bottom)
// Option: hide placeholder text 'Search'
// Option: swap the icons of search engine button and go button
// Option: show icons and search engine names instead of only icons
// Option: select search engine by scrolling mouse wheel over search bars button

// [!] Default browser feature: search engine can be changed inside default/modern popup by right-clicking
//     search icon and selecting 'Set As Default Search Engine' menuitem.


// Configuration area - start (all 'false' by default)
var clear_searchbar_after_search = false; // clear input after search (true) or not (false)
var revert_to_first_engine_after_search = false; // revert to first engine (true) or not (false)
var old_search_engine_selection_popup = true; // show old search engine selection popup (true) or not (false)
var select_engine_by_scrolling_over_button = false; // select search engine by scrolling mouse wheel over search bars button (true) or not (false)
var select_engine_by_click_oneoffs_button = false; // select search engine by left-clicking search icon (true) or not (false)
var hide_oneoff_search_engines = false; // hide 'one off' search engines (true) or not (false)
var hide_addengines_plus_indicator = false; // hide add engines '+' sign (true) or not (false)
var hide_placeholder = false; // hide placeholder (true) or not (false)
var switch_glass_and_engine_icon = false; // swap icons of search engine button and go button (true) or not (false)
var show_search_engine_names = true; // show search engine names (true) or not (false)
var show_search_engine_names_with_scrollbar = false; // show search engine names with scrollbars (true) or not (false)
var show_search_engine_names_with_scrollbar_height = '170px'; // higher values show more search engines
var initialization_delay_value = 0; // some systems might require a higher value than '1' second (=1000ms) and on some even '0' is enough
var searchsettingslabel = "Ändere Sucheinstellungen";
// Configuration area - end

var isInCustomize = 1; //start at 1 to set it once at startup

Cu.import('resource://gre/modules/Services.jsm');

var AltSearchbar = {
 init: async function() {
   await Services.search.wrappedJSObject._initObservers.promise;

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

   window.removeEventListener("load", AltSearchbar.init, false);

   try {
       
    var searchbar = document.getElementById("searchbar");
    var appversion = parseInt(Services.appinfo.version);

    if(!old_search_engine_selection_popup)
      updateStyleSheet();
    
    if(hide_placeholder)
      hideSearchbarsPlaceholder();

    if(select_engine_by_scrolling_over_button)
      selectEngineByScrollingOverButton();

    if(old_search_engine_selection_popup)
      createOldSelectionPopup();

    if (select_engine_by_click_oneoffs_button)
      selectEngineByClickOneoffsButton();

    // select search engine by scrolling mouse wheel over search bars button
    function selectEngineByScrollingOverButton() {
      searchbar.addEventListener("DOMMouseScroll", (event) => {
        if (event.originalTarget.classList.contains("searchbar-search-button")) {
          searchbar.selectEngine(event, event.detail > 0);
        }
      }, true);
    };

    // left click on off select engine
    function selectEngineByClickOneoffsButton() {
        var searchoneoffs = searchbar.textbox.popup.oneOffButtons;
        searchoneoffs.container.addEventListener("click", (event) => {
            if (!(event instanceof KeyboardEvent) && (event.button == 0)) {
                event.stopPropagation();
                event.target.classList.add("search-one-offs-context-set-default");
                searchoneoffs._contextEngine = event.target.engine;
                searchoneoffs._on_command(event);
                searchoneoffs._contextEngine = null;
                // let contextEngine = event.target.engine;
                // let currentEngine = searchbar.currentEngine;
                // if (!searchoneoffs.getAttribute("includecurrentengine")) {
                //     // Make the target button of the context menu reflect the current
                //     // search engine first. Doing this as opposed to rebuilding all the
                //     // one-off buttons avoids flicker.
                //     let button = searchoneoffs._buttonForEngine(contextEngine);
                //     button.id = searchoneoffs._buttonIDForEngine(currentEngine);
                //     let uri = "chrome://browser/skin/search-engine-placeholder.png";
                //     if (currentEngine.iconURI) {
                //         uri = currentEngine.iconURI.spec;
                //     }
                //     button.setAttribute("image", uri);
                //     button.setAttribute("tooltiptext", currentEngine.name);
                //     button.engine = currentEngine;
                // }
                // searchbar.currentEngine = contextEngine;
            }
        }, true);
    };
    
    // hide placeholder
    function hideSearchbarsPlaceholder() {
      searchbar.getElementsByClassName('searchbar-textbox')[0].removeAttribute("placeholder");
    };

    function attachOldPopupToButton(e) {
        if(isInCustomize == 1) {
            setTimeout(function () { searchbar.getElementsByClassName("searchbar-search-button")[0].setAttribute("popup", "searchbuttonpopup"); }, initialization_delay_value);
        }
        if(isInCustomize > 0)
            isInCustomize--;
    }

    // old search selection popup
    async function createOldSelectionPopup() {

        searchbar.engines = await Services.search.getVisibleEngines();
        
        window.addEventListener("beforecustomization", function(e) { isInCustomize++; }, false);
        window.addEventListener("aftercustomization", attachOldPopupToButton, false);        

        // set new search engine
        searchbar.setNewSearchEngine = function(index) {
            searchbar.currentEngine = searchbar.engines[index];
            updateStyleSheet();
        };

        // create search popup
        searchbuttonpopup = document.createXULElement("menupopup");
        searchbuttonpopup.setAttribute("id", "searchbuttonpopup");
        searchbuttonpopup.setAttribute("width", searchbar.getBoundingClientRect().width - 6 );
        searchbuttonpopup.setAttribute("position", "after_start");
      
        try {
            
            var hidden_list = Services.prefs.getStringPref("browser.search.hiddenOneOffs");
            hidden_list =  hidden_list ? hidden_list.split(",") : [];                    

            for (var i = 0; i <= searchbar.engines.length - 1; ++i) {
                        
                if(!hidden_list.includes(searchbar.engines[i].name)) {
                        
                    menuitem = document.createXULElement("menuitem");;
                    menuitem.setAttribute("label", searchbar.engines[i].name);
                    menuitem.setAttribute("tooltiptext", searchbar.engines[i].name);
                            menuitem.setAttribute("class", "menuitem-iconic searchbar-engine-menuitem menuitem-with-favicon");
            
                    if (searchbar.engines[i] == searchbar.currentEngine)
                            menuitem.setAttribute("selected", "true");
            
                    if (searchbar.engines[i].iconURI)
                        menuitem.setAttribute("image",searchbar.engines[i].iconURI.spec);
                            
                            menuitem.setAttribute("oncommand", "document.getElementById('searchbar').setNewSearchEngine("+i+")");

                            searchbuttonpopup.appendChild(menuitem);
                            
                        }
      
                    }
        
                    menuseparator_om = document.createXULElement("menuseparator");
                    searchbuttonpopup.appendChild(menuseparator_om);

                    menuitem_om = document.createXULElement("menuitem");
                    menuitem_om.setAttribute("label", searchsettingslabel);
                    menuitem_om.setAttribute("class", "open-engine-manager");
                    menuitem_om.setAttribute("oncommand", "openPreferences('search');");
                    searchbuttonpopup.appendChild(menuitem_om);    

                    updateStyleSheet();
        
        } catch(exc) {
          console.log("Exception AltSearchbar: " + exc);
        }

      document.getElementById("mainPopupSet").appendChild(searchbuttonpopup);

      // adjust popup width
      setTimeout(function(){
        document.getElementById('searchbuttonpopup').setAttribute("width", document.getElementById("searchbar").getBoundingClientRect().width);
      },1000);

      var observer_width = new MutationObserver(function(mutations,observer) {
        observer.disconnect();
        try {
          document.getElementById('searchbuttonpopup').setAttribute("width", document.getElementById("searchbar").getBoundingClientRect().width );
        } catch(e){}
        observer.observe(document.getElementById('search-container'), { attributes: true, attributeFilter: ['width'] });
        observer.observe(document.getElementById('main-window'), { attributes: true, attributeFilter: ['sizemode'] });
      });

      try {
        observer_width.observe(document.getElementById('search-container'), { attributes: true, attributeFilter: ['width'] });
        observer_width.observe(document.getElementById('main-window'), { attributes: true, attributeFilter: ['sizemode'] });
      } catch(e){}
      
      // restore "add search engine" menuitem

      // attach new popup to search bars search button
      try {
        attachOldPopupToButton();    
      }
      catch(e) {
          console.log("AltSearchbar: Failed to attach new popup to search bar search button");
      }
      
    // Refresh the script's search popup (searchbuttonpopup) with any changes made to search engines/options.
    async function updateEngines() {
    var i;

    try {

        searchbuttonpopup = document.getElementById("searchbuttonpopup");

        searchbar.engines = await Services.search.getVisibleEngines();

        try {

            while (searchbuttonpopup.childNodes[0].tagName.toLowerCase() != "menuseparator")
                searchbuttonpopup.removeChild(searchbuttonpopup.firstChild);

            var separator = searchbuttonpopup.childNodes[0];

            var hidden_list = Services.prefs.getStringPref("browser.search.hiddenOneOffs");
            hidden_list = hidden_list ? hidden_list.split(",") : [];

            for (i = 0; i <= searchbar.engines.length - 1; ++i) {

                if (!hidden_list.includes(searchbar.engines[i].name)) {

                    menuitem = document.createXULElement("menuitem");;
                    menuitem.setAttribute("label", searchbar.engines[i].name);
                    menuitem.setAttribute("class", "menuitem-iconic searchbar-engine-menuitem menuitem-with-favicon");
                    menuitem.setAttribute("tooltiptext", searchbar.engines[i].name);

                    if (searchbar.engines[i] == searchbar.currentEngine)
                        menuitem.setAttribute("selected", "true");

                    if (searchbar.engines[i].iconURI)
                        menuitem.setAttribute("image", searchbar.engines[i].iconURI.spec);

                    menuitem.setAttribute("oncommand", "document.getElementById('searchbar').setNewSearchEngine(" + i + ")");

                    searchbuttonpopup.insertBefore(menuitem, separator);

                }

            }

            updateStyleSheet();

        } catch (exc) {
            console.log(exc);
        }

    } catch (exc) {
        console.log("update altbar exc: " + exc);
    }
}

// Used to observe modifications made to search engines. We are only interested in the addition and removal of engines.
Services.obs.addObserver(function observer(subject, topic, data) {
    // If a search engine/option is added or removed, we need to refresh the script's popup. We use updateEngines() to do that.
    if (data == "engine-added" || data == "engine-removed" || data == "engine-changed") {
        updateEngines();
    }
}, "browser-search-engine-modified");

// Observe the enabling and disabling of search engines, and update the search popup.
Services.prefs.addObserver("browser.search.hiddenOneOffs", function observer(subject, topic, data) {
   updateEngines();
});

// Used to create an add engine item and append it into the script's search popup (searchbuttonpopup). This is the option
// that is displayed as "Add enginename" e.g. Add DuckDuckGo.
function createAddEngineItem(e) {
        try {

            e.target.removeEventListener(e.type, arguments.callee);

            searchbuttonpopup = document.getElementById("searchbuttonpopup");
            
            while (searchbuttonpopup.lastChild.classList.contains("custom-addengine-item")) {
                searchbuttonpopup.removeChild(searchbuttonpopup.lastChild);
            }
            
            setTimeout(function () { //setTimeout fix an issue where labels don't get displayed
                
                let native_popup_search_add_items_collection = document.getElementsByClassName("searchbar-engine-one-off-add-engine");
                var native_popup_search_add_items = new Array();
                
                for(i = 0; i < native_popup_search_add_items_collection.length; i++) {
                    if(!native_popup_search_add_items_collection[i].parentElement.parentElement.parentElement.parentElement.hasAttribute("class")) {
                        native_popup_search_add_items.push(native_popup_search_add_items_collection[i]);
                    }
                }
                
                if (native_popup_search_add_items.length != 0) {

                    if (searchbuttonpopup.lastChild.tagName.toLowerCase() != "menuseparator") {
                        searchbuttonpopup.appendChild(document.createXULElement("menuseparator"));
                        searchbuttonpopup.appendChild(document.createXULElement("menuseparator"));
                    }

                    for(i = 0; i < native_popup_search_add_items.length; i++) {
                        
                        menuitem = document.createXULElement("menuitem");
                        menuitem.setAttribute("label", native_popup_search_add_items[i].getAttribute("label"));
                        menuitem.setAttribute("class", "menuitem-iconic searchbar-engine-menuitem menuitem-with-favicon custom-addengine-item");
                        menuitem.setAttribute("tooltiptext", native_popup_search_add_items[i].getAttribute("label"));
                        menuitem.setAttribute("uri", native_popup_search_add_items[i].getAttribute("uri"));
                        menuitem.setAttribute("data-id", native_popup_search_add_items[i].id);
                        menuitem.setAttribute("oncommand", "document.getElementById(\"" + native_popup_search_add_items[i].id + "\").click();");

                        if (native_popup_search_add_items[i].hasAttribute("image"))
                            menuitem.setAttribute("image", native_popup_search_add_items[i].getAttribute("image"));

                        searchbuttonpopup.appendChild(menuitem);

                    };

                } 
                else {
                    while (searchbuttonpopup.lastChild.tagName.toLowerCase() == "menuseparator")
                        searchbuttonpopup.removeChild(searchbuttonpopup.lastChild);
                }        
            
            }, 0 );
      
        }
        catch (exc) {
          console.log("custom addengine exc: " + exc);
        }
      }    

      searchbar.addEventListener("mousedown", (event) => {
        var defaultPopup = document.getElementById("PopupSearchAutoComplete"); // Browser's default search popup.
        var scriptPopup = document.getElementById("searchbuttonpopup");
        var addEngineItem = document.getElementsByClassName("custom-addengine-item")[0];
        var searchButton = document.getElementsByClassName("searchbar-search-button")[0];

        // hasAddEnginesAttribute == true means there is a search engine provided by the page, for us to add using "Add enginename."
        // You will see a green plus badge on the search button icon, if that is the case.
        var hasAddEnginesAttribute = searchButton.hasAttribute("addengines");

        // Skip clicks on the search button until searchbuttonpopup is available. Disable propagation, too.
        if (!scriptPopup) {
            event.stopPropagation();
            return;
        }

        defaultPopup.style.visibility = "visible";

        // If the user clicks on any element on the search bar except the search text.
        if (event.target.getAttribute("class") != "searchbar-textbox") {

            // In case the default search popup is shown, hide it.
            defaultPopup.hidePopup();

            // Propagation causes PopupSearchAutoComplete to be shown, which in turn causes search-add-engines to be populated.
            // We monitor the PopupSearchAutoComplete and after it is shown, we use createAddEngineItem() to create the add
            // engine item and populate the script's popup (searchbuttonpopup). Propagation causes PopupSearchAutoComplete to be 
            // displayed with searchbuttonpopup, at the same time (when the user clicks the search button). Displaying 
            // PopupSearchAutoComplete with every search button click is inefficient. We allow propagation only when it is needed, 
            // and we set the PopupSearchAutoComplete visibility to collapse, so we do not see it with the script's popup.

            // If there are no changes to be done to the searchbuttonpopup, go ahead and skip propagation.
            // If there is an engine to be added, and the engine item is already available on the script's popup, there are no changes.
            // If there is no engine to be added, and there is no engine item, that also means that there are no changes needed.
            // On the other hand, if hasAddEnginesAttribute and addEngineItem are not synchronized, we need to apply propagation
            // to refresh the searchbuttonpopup. We set the addEngineItem visibility to collapse, and allow propagation.
            if ((hasAddEnginesAttribute && addEngineItem && addEngineItem.hasAttribute("image") && document.getElementById(addEngineItem.getAttribute("data-id")) && gBrowser.currentURI.spec.includes(addEngineItem.getAttribute("uri").match(/.+:\/\/([^\/]+)\//)[1])) || (!hasAddEnginesAttribute && !addEngineItem))
                event.stopPropagation();
            else {
                defaultPopup.style.visibility = "collapse";
                defaultPopup.addEventListener("popupshown", createAddEngineItem, false);
            }
        }

        /*searchbar.focus();*/

      }, true);

    }; //createOldSelectionPopup
    
    // doSearch function taken from Firefox 85+ internal 'searchbar.js' file and added modifications
    searchbar.doSearch = function(aData, aWhere, aEngine, aParams, isOneOff = false) {
      let textBox = this._textbox;
      let engine = aEngine || this.currentEngine;

      // Save the current value in the form history
      if (
        aData &&
        !PrivateBrowsingUtils.isWindowPrivate(window) &&
        this.FormHistory.enabled &&
        aData.length <=
          this.SearchSuggestionController.SEARCH_HISTORY_MAX_VALUE_LENGTH
      ) {
        this.FormHistory.update(
          {
            op: "bump",
            fieldname: textBox.getAttribute("autocompletesearchparam"),
            value: aData,
            source: engine.name,
          },
          {
            handleError(aError) {
              Cu.reportError(
                "Saving search to form history failed: " + aError.message
              );
            },
          }
        );
      }

      let submission = engine.getSubmission(aData, null, "searchbar");

      // If we hit here, we come either from a one-off, a plain search or a suggestion.
      const details = {
        isOneOff,
        isSuggestion: !isOneOff && this.telemetrySelectedIndex != -1,
        url: submission.uri,
      };

      this.telemetrySelectedIndex = -1;

      BrowserSearchTelemetry.recordSearch(
        gBrowser.selectedBrowser,
        engine,
        "searchbar",
        details
      );
      // null parameter below specifies HTML response for search
      let params = {
        postData: submission.postData,
      };
      if (aParams) {
        for (let key in aParams) {
          params[key] = aParams[key];
        }
      }
      openTrustedLinkIn(submission.uri.spec, aWhere, params);
      
        if(clear_searchbar_after_search)
            this.value = '';
          
        if(revert_to_first_engine_after_search) {
            searchbar.currentEngine = searchbar.engines[0];
            updateStyleSheet();
        }

    };
    
    // Workaround for the deprecated setIcon funtion
    var oldUpdateDisplay = searchbar.updateDisplay;
    searchbar.updateDisplay = function() {
      oldUpdateDisplay.call(this);
      updateStyleSheet();
    };
    
    // main style sheet
    function updateStyleSheet() {
      var sss = Components.classes["@mozilla.org/content/style-sheet-service;1"].getService(Components.interfaces.nsIStyleSheetService);

      var hide_oneoff_search_engines_code = '';
      var show_search_engine_names_code = '';
      var show_search_engine_names_with_scrollbar_code = '';
      var hide_addengines_plus_indicator_code = '';
      var switch_glass_and_engine_icon_code = '';

      if(hide_oneoff_search_engines)
        hide_oneoff_search_engines_code=' \
          #PopupSearchAutoComplete .search-panel-header, \
          #PopupSearchAutoComplete .search-one-offs { \
            display: none !important; \
          } \
        ';

      if(hide_addengines_plus_indicator)
       hide_addengines_plus_indicator_code=' \
         .searchbar-search-button[addengines=true]::after { \
           visibility: hidden !important; \
         } \
       ';
    
      if(show_search_engine_names && !hide_oneoff_search_engines)
       show_search_engine_names_code=' \
        #PopupSearchAutoComplete .search-panel-one-offs .searchbar-engine-one-off-item { \
          -moz-appearance:none !important; \
          min-width: 0 !important; \
          width: 100% !important; \
          border: unset !important; \
          height: 22px !important; \
          background-image: unset !important; \
          padding-inline-start: 3px !important; \
        } \
        #PopupSearchAutoComplete .search-panel-one-offs .searchbar-engine-one-off-item:not([tooltiptext]) { \
          display: none !important; \
        } \
        #PopupSearchAutoComplete .search-panel-one-offs .searchbar-engine-one-off-item .button-box { \
          display: block !important; \
          padding-inline-start: 4px !important; \
          margin-top: 3px !important; \
        } \
        #PopupSearchAutoComplete .search-panel-one-offs .searchbar-engine-one-off-item::after { \
          -moz-appearance: none !important; \
          display: inline !important; \
          content: attr(tooltiptext) !important; \
          position: relative !important; \
          top: -9px !important; \
          padding-inline-start: 25px !important; \
        } \
        #PopupSearchAutoComplete .search-panel-one-offs { \
          min-height: unset !important; \
          height: unset !important; \
          max-height: unset !important; \
        } \
        #PopupSearchAutoComplete .search-setting-button { \
          align-self: unset !important; \
          margin-top: -22px !important; \
          position: absolute !important; \
        } \
           ';

      if(show_search_engine_names_with_scrollbar && !hide_oneoff_search_engines && show_search_engine_names)
       show_search_engine_names_with_scrollbar_code=' \
        #PopupSearchAutoComplete .search-one-offs { \
          height: '+show_search_engine_names_with_scrollbar_height+' !important; \
          max-height: '+show_search_engine_names_with_scrollbar_height+' !important; \
          overflow-y: scroll !important; \
          overflow-x: hidden !important; \
        } \
        \
        ';

      if(switch_glass_and_engine_icon)
       switch_glass_and_engine_icon_code=' \
        .search-go-button { \
          list-style-image: url('+document.getElementById("searchbar").currentEngine.iconURI.spec+') !important; \
          transform: scaleX(1) !important; \
        } \
        .searchbar-search-button .searchbar-search-icon { \
          list-style-image: url("chrome://global/skin/icons/search-glass.svg") !important; \
          -moz-context-properties: fill, fill-opacity !important; \
          fill-opacity: 1.0 !important; \
          fill: #3683ba !important; \
        } \
        .searchbar-search-button:hover .searchbar-search-icon { \
          fill: #1d518c !important; \
        } \
        .searchbar-search-button:active .searchbar-search-icon { \
          fill: #00095d !important; \
        } \
        \
        ';

      var uri = Services.io.newURI("data:text/css;charset=utf-8," + encodeURIComponent(' \
        \
        #search-container{ min-width: 20px !important } \
        #searchbuttonpopup {\
         margin-inline-start: -1px; \
        } \
        .searchbar-search-button .searchbar-search-icon { \
          list-style-image: url('+document.getElementById("searchbar").currentEngine.iconURI.spec+') !important; \
        } \
        .search-go-button { \
          list-style-image: url("chrome://global/skin/icons/search-glass.svg") !important; \
          -moz-context-properties: fill, fill-opacity !important; \
          fill-opacity: 1.0 !important; \
          fill: #3683ba !important; \
          transform: scaleX(-1) !important; \
          background: unset !important; \
          margin-inline-end: 4px !important; \
        } \
        .search-go-button:hover { \
          fill: #1d518c !important; \
        } \
        .search-go-button:active { \
          fill: #00095d !important; \
        } \
        .search-go-button[hidden="true"] { \
          display: block !important; \
        } \
        .searchbar-search-button[addengines=true] > .searchbar-search-icon-overlay, \
        .searchbar-search-button:not([addengines=true]) > .searchbar-search-icon-overlay { \
          list-style-image: url("chrome://global/skin/icons/arrow-down-12.svg") !important; \
          -moz-context-properties: fill !important; \
          margin-inline-start: -6px !important; \
          margin-inline-end: 2px !important; \
          width: 11px !important; \
          height: 11px !important; \
        } \
        .searchbar-search-button[addengines=true] > .searchbar-search-icon-overlay { \
          margin-top: 0px !important; \
        } \
        .searchbar-search-button[addengines=true]::after { \
          content: " " !important; \
          background: url("chrome://browser/skin/search-indicator-badge-add.svg") center no-repeat !important; \
          display: block !important; \
          visibility: visible !important; \
          width: 11px !important; \
          height: 11px !important; \
          margin-inline-start: 18px !important; \
          margin-top: -11px !important; \
          position: absolute !important; \
        } \
        .searchbar-search-button[addengines=true] > .searchbar-search-icon-overlay { \
          visibility: visible !important; \
        } \
         \
        .custom-addengine-item > .menu-iconic-left::after { \
          position: absolute !important; \
          display: block; !important; \
          content: "" !important; \
          background: url("chrome://browser/skin/search-indicator-badge-add.svg") no-repeat center !important; \
          box-shadow: none  !important; \
          margin-top: -12px !important; \
          margin-inline-start: -4px !important; \
          width: 11px; !important; \
          height: 11px; !important; \
          min-width: 11px; !important; \
          min-height: 11px; !important; \
        } \
        '+hide_addengines_plus_indicator_code+' \
        '+hide_oneoff_search_engines_code+' \
        '+show_search_engine_names_code+' \
        '+show_search_engine_names_with_scrollbar_code+' \
        '+switch_glass_and_engine_icon_code+' \
        \
      '), null, null);

      // remove old style sheet
      if (sss.sheetRegistered(uri,sss.AGENT_SHEET)) {
        sss.unregisterSheet(uri,sss.AGENT_SHEET);
      }

      sss.loadAndRegisterSheet(uri, sss.AGENT_SHEET);

    };

   } catch(e) {} 

 }
}

/* if search is not hidden on current window, wait for searchbar loading and then initialize 'alternative search' (with delay) */
if(!document.firstElementChild.hasAttribute("chromehidden") || !document.firstElementChild.getAttribute("chromehidden").includes("toolbar")) {
    if (document.readyState === "complete") {
        setTimeout(AltSearchbar.init, initialization_delay_value);
    }
    else {
        window.addEventListener("load", AltSearchbar.init, false);
    }
}

// ==UserScript==
// @name           zzzz-MultiRowTab_LiteforFx48.uc.js
// @namespace      http://space.geocities.yahoo.co.jp/gl/alice0775
// @description    Experimentelle CSS Version für Mehrzeilige Tableiste
// @include        main
// @compatibility  Firefox 95
// @author         Alice0775
// @version        2016/08/05 00:00 Firefox 48
// @version        2016/05/01 00:01 hide favicon if busy
// @version        2016/03/09 00:01 Bug 1222490 - Actually remove panorama for Fx45+
// @version        2016/02/09 00:01 workaround css for lwt
// @version        2016/02/09 00:00
// ==/UserScript==
"use strict";
MultiRowTabLiteforFx();
function MultiRowTabLiteforFx() {

    var css =` @-moz-document url-prefix("chrome://browser/content/browser.xhtml") {

    /* Symbolleiste Sortieren */
    #titlebar { -moz-box-ordinal-group: 2; }

    /* Anpassung der Symbolleiste */
    :root[tabsintitlebar="true"][sizemode="maximized"] #navigator-toolbox { padding-top: 8px !important; }
    #titlebar,#tabbrowser-tabs { -moz-appearance: none !important; }

    /* Anpassung für Titelleistenschaltflächen */
    #nav-bar:not([inFullscreen="true"]) .titlebar-button { width: 46px !important; }
    #nav-bar[inFullscreen="true"] .titlebar-button { width: 36px !important; }
    #toolbar-menubar:not([inactive]) ~ #nav-bar:not([inFullscreen="true"]) .titlebar-buttonbox-container { display: none !important; }

    /* Mehrzeilige Tableiste */
    box.scrollbox-clip[orient="horizontal"] { display: block; }
    scrollbox[part][orient="horizontal"] {
        display: flex;
        flex-wrap: wrap;
        max-height: calc(calc(8px + var(--tab-min-height)) * 5); /* Anzahl der Tabzeilen(Standard = 5 Zeilen) */
        overflow-x: hidden;
        overflow-y: auto; }
    .tabbrowser-tab[fadein]:not([pinned]) { flex-grow: 1; }
    .tabbrowser-tab { overflow: hidden; }
    .tabbrowser-tab,#tabs-newtab-button { height: calc(8px + var(--tab-min-height)); }
    .tabbrowser-tab > .tab-stack { width: 100%; }
    #tabs-newtab-button { margin: 0 !important; }

    /* Bei Überschreitung der angegebenen Zeilenanzahl, mit der Maus,    
       über die dann eingeblendetet Scrolleiste zur gewünschten Zeile wechseln */
    scrollbox[part][orient="horizontal"] > scrollbar { -moz-window-dragging: no-drag; }

    /* Ausblenden */
    .tabbrowser-tab:not([fadein]) { display: none !important; }

    /* --- Ziehbereich der Tab-Leiste --- */
    /* Anpassung */
    hbox.titlebar-spacer[type="pre-tabs"] { width: 0px !important; } /* Linker Ziehbereich: Standard 40px  */
    hbox.titlebar-spacer[type="post-tabs"] { width: 0px !important; } /* Rechter Ziehbereich: Standard 40px  */
    /* ↓ Wenn Sie die linke und rechte Seite des CSS-Codes auskommentieren und den CSS-Code aktivieren, 
       können Sie den Ziehbereich links einblenden, der beim Maximieren des Fensters ausgeblendet wird.  */
    /* :root:not([sizemode="normal"]) hbox.titlebar-spacer[type="pre-tabs"] { display: block !important; } */

    /* ↓ Wenn Sie die Auskommentierung links und rechts von unten stehenden CSS-Code entfernen und den CSS-Code aktivieren,     
         können Sie den linken und rechten Ziehbereich einblenden, der im Vollbildmodus ausgeblendet wird. */
    /* :root[inFullscreen] .titlebar-spacer { display: block !important; } */

    } `;
    var sss = Cc['@mozilla.org/content/style-sheet-service;1'].getService(Ci.nsIStyleSheetService);
    var uri = makeURI('data:text/css;charset=UTF=8,' + encodeURIComponent(css));
    sss.loadAndRegisterSheet(uri, sss.AGENT_SHEET);

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

    // Verschieben Sie die Menüleiste an den oberen Rand der Symbolleiste 
    document.getElementById("titlebar").parentNode.insertBefore(document.getElementById("toolbar-menubar"),document.getElementById("titlebar"));

    // Titelleisten Schaltflächen in die Tableiste an den Rechten Rand verschieben
    document.getElementById("nav-bar").appendChild(document.querySelector("#TabsToolbar .titlebar-buttonbox-container"));

    // Scroll-Buttons und Spacer in der Tab-Leiste ausblenden shadowRoot 
    gBrowser.tabContainer.arrowScrollbox.shadowRoot.getElementById('scrollbutton-up').style.display = "none";
    gBrowser.tabContainer.arrowScrollbox.shadowRoot.getElementById('scrollbutton-down').style.display = "none";
    gBrowser.tabContainer.arrowScrollbox.shadowRoot.querySelector('[part="overflow-start-indicator"]').style.display = "none";
    gBrowser.tabContainer.arrowScrollbox.shadowRoot.querySelector('[part="overflow-end-indicator"]').style.display = "none";

    // drag & drop & DropIndicator

    gBrowser.tabContainer.clearDropIndicator = function() {
      let tabs = this.allTabs;
      for (let i = 0, len = tabs.length; i < len; i++) {
        tabs[i].removeAttribute("style");
      }
    }
    gBrowser.tabContainer.addEventListener("dragleave", function(event) { this.clearDropIndicator(event); }, true);

    gBrowser.tabContainer.on_dragover = function(event) {
      this.clearDropIndicator();
      var effects = this._getDropEffectForTabDrag(event);

      var ind = this._tabDropIndicator;
      if (effects == "" || effects == "none") {
        ind.hidden = true;
        return;
      }
      event.preventDefault();
      event.stopPropagation();

      var arrowScrollbox = this.arrowScrollbox;

      // autoscroll the tab strip if we drag over the scroll
      // buttons, even if we aren't dragging a tab, but then
      // return to avoid drawing the drop indicator
      var pixelsToScroll = 0;
      if (this.getAttribute("overflow") == "true") {
        switch (event.originalTarget) {
          case arrowScrollbox._scrollButtonUp:
            pixelsToScroll = arrowScrollbox.scrollIncrement * -1;
            break;
          case arrowScrollbox._scrollButtonDown:
            pixelsToScroll = arrowScrollbox.scrollIncrement;
            break;
        }
        if (pixelsToScroll) {
          arrowScrollbox.scrollByPixels(
            (RTL_UI ? -1 : 1) * pixelsToScroll,
            true
          );
        }
      }

      let draggedTab = this._getDropIndex(event, false); // event.dataTransfer.mozGetDataAt(TAB_DROP_TYPE, 0);
      if (
        (effects == "move" || effects == "copy") &&
        this == draggedTab.container
      ) {
        ind.hidden = true;

        if (!this._isGroupTabsAnimationOver()) {
          // Wait for grouping tabs animation to finish
          return;
        }
        this._finishGroupSelectedTabs(draggedTab);

        if (effects == "move") {
          this._animateTabMove(event);
          return;
        }
      }

      this._finishAnimateTabMove();

      if (effects == "link") {
        let tab = this._getDragTargetTab(event, true);
        if (tab) {
          if (!this._dragTime) {
            this._dragTime = Date.now();
          }
          if (Date.now() >= this._dragTime + this._dragOverDelay) {
            this.selectedItem = tab;
          }
          ind.hidden = true;
          return;
        }
      }

      var rect = arrowScrollbox.getBoundingClientRect();
      var newMargin;
      if (pixelsToScroll) {
        // if we are scrolling, put the drop indicator at the edge
        // so that it doesn't jump while scrolling
        let scrollRect = arrowScrollbox.scrollClientRect;
        let minMargin = scrollRect.left - rect.left;
        let maxMargin = Math.min(
          minMargin + scrollRect.width,
          scrollRect.right
        );
        if (RTL_UI) {
          [minMargin, maxMargin] = [
            this.clientWidth - maxMargin,
            this.clientWidth - minMargin,
          ];
        }
        newMargin = pixelsToScroll > 0 ? maxMargin : minMargin;
      } else {
        let newIndex = this._getDropIndex(event, effects == "link");
        let children = this.allTabs;
        if (newIndex == children.length) {
       // let tabRect = children[newIndex - 1].getBoundingClientRect();
          children[newIndex - 1].style.setProperty("box-shadow","-1px 0 0 red inset,1px 0 0 red","important");
          if (RTL_UI) {
            newMargin = rect.right - tabRect.left;
          } else {
            newMargin = tabRect.right - rect.left;
          }
        } else {
       // let tabRect = children[newIndex].getBoundingClientRect();
          children[newIndex].style.setProperty("box-shadow","1px 0 0 red inset,-1px 0 0 red","important");
          if (RTL_UI) {
            newMargin = rect.right - tabRect.right;
          } else {
            newMargin = tabRect.left - rect.left;
          }
        }
      }

      ind.hidden = false;
      newMargin += ind.clientWidth / 2;
      if (RTL_UI) {
        newMargin *= -1;
      }
      ind.style.transform = "translate(" + Math.round(newMargin) + "px)";
    }

    gBrowser.tabContainer.on_drop = function(event) {
      this.clearDropIndicator();
      var dt = event.dataTransfer;
      var dropEffect = dt.dropEffect;
      var draggedTab;
      let movingTabs;
      if (dt.mozTypesAt(0)[0] == TAB_DROP_TYPE) {
        // tab copy or move
        draggedTab = dt.mozGetDataAt(TAB_DROP_TYPE, 0);
        // not our drop then
        if (!draggedTab) {
          return;
        }
        movingTabs = draggedTab._dragData.movingTabs;
        draggedTab.container._finishGroupSelectedTabs(draggedTab);
      }

      this._tabDropIndicator.hidden = true;
      event.stopPropagation();
      if (draggedTab && dropEffect == "copy") {
        // copy the dropped tab (wherever it's from)
        let newIndex = this._getDropIndex(event, false);
        let draggedTabCopy;
        for (let tab of movingTabs) {
          let newTab = gBrowser.duplicateTab(tab);
          gBrowser.moveTabTo(newTab, newIndex++);
          if (tab == draggedTab) {
            draggedTabCopy = newTab;
          }
        }
        if (draggedTab.container != this || event.shiftKey) {
          this.selectedItem = draggedTabCopy;
        }
      } else if (draggedTab && draggedTab.container == this) {
        let oldTranslateX = Math.round(draggedTab._dragData.translateX);
        let tabWidth = Math.round(draggedTab._dragData.tabWidth);
        let translateOffset = oldTranslateX % tabWidth;
        let newTranslateX = oldTranslateX - translateOffset;
        if (oldTranslateX > 0 && translateOffset > tabWidth / 2) {
          newTranslateX += tabWidth;
        } else if (oldTranslateX < 0 && -translateOffset > tabWidth / 2) {
          newTranslateX -= tabWidth;
        }

        let dropIndex = this._getDropIndex(event, false);
       // "animDropIndex" in draggedTab._dragData &&
       // draggedTab._dragData.animDropIndex;
        let incrementDropIndex = true;
        if (dropIndex && dropIndex > movingTabs[0]._tPos) {
          dropIndex--;
          incrementDropIndex = false;
        }

        if (oldTranslateX && oldTranslateX != newTranslateX && !gReduceMotion) {
          for (let tab of movingTabs) {
            tab.setAttribute("tabdrop-samewindow", "true");
            tab.style.transform = "translateX(" + newTranslateX + "px)";
            let postTransitionCleanup = () => {
              tab.removeAttribute("tabdrop-samewindow");

              this._finishAnimateTabMove();
              if (dropIndex !== false) {
                gBrowser.moveTabTo(tab, dropIndex);
                if (incrementDropIndex) {
                  dropIndex++;
                }
              }

              gBrowser.syncThrobberAnimations(tab);
            };
            if (gReduceMotion) {
              postTransitionCleanup();
            } else {
              let onTransitionEnd = transitionendEvent => {
                if (
                  transitionendEvent.propertyName != "transform" ||
                  transitionendEvent.originalTarget != tab
                ) {
                  return;
                }
                tab.removeEventListener("transitionend", onTransitionEnd);

                postTransitionCleanup();
              };
              tab.addEventListener("transitionend", onTransitionEnd);
            }
          }
        } else {
          this._finishAnimateTabMove();
          if (dropIndex !== false) {
            for (let tab of movingTabs) {
              gBrowser.moveTabTo(tab, dropIndex);
              if (incrementDropIndex) {
                dropIndex++;
              }
            }
          }
        }
      } else if (draggedTab) {
        let newIndex = this._getDropIndex(event, false);
        let newTabs = [];
        for (let tab of movingTabs) {
          let newTab = gBrowser.adoptTab(tab, newIndex++, tab == draggedTab);
          newTabs.push(newTab);
        }

        // Restore tab selection
        gBrowser.addRangeToMultiSelectedTabs(
          newTabs[0],
          newTabs[newTabs.length - 1]
        );
      } else {
        // Pass true to disallow dropping javascript: or data: urls
        let links;
        try {
          links = browserDragAndDrop.dropLinks(event, true);
        } catch (ex) {}

        if (!links || links.length === 0) {
          return;
        }

        let inBackground = Services.prefs.getBoolPref(
          "browser.tabs.loadInBackground"
        );
        if (event.shiftKey) {
          inBackground = !inBackground;
        }

        let targetTab = this._getDragTargetTab(event, true);
        let userContextId = this.selectedItem.getAttribute("usercontextid");
        let replace = !!targetTab;
        let newIndex = this._getDropIndex(event, true);
        let urls = links.map(link => link.url);
        let csp = browserDragAndDrop.getCSP(event);
        let triggeringPrincipal = browserDragAndDrop.getTriggeringPrincipal(
          event
        );

        (async () => {
          if (
            urls.length >=
            Services.prefs.getIntPref("browser.tabs.maxOpenBeforeWarn")
          ) {
            // Sync dialog cannot be used inside drop event handler.
            let answer = await OpenInTabsUtils.promiseConfirmOpenInTabs(
              urls.length,
              window
            );
            if (!answer) {
              return;
            }
          }

          gBrowser.loadTabs(urls, {
            inBackground,
            replace,
            allowThirdPartyFixup: true,
            targetTab,
            newIndex,
            userContextId,
            triggeringPrincipal,
            csp,
          });
        })();
      }

      if (draggedTab) {
        delete draggedTab._dragData;
      }
    }

    gBrowser.tabContainer._getDropIndex = function(event, isLink) {
      var tabs = this.allTabs;
      var tab = this._getDragTargetTab(event, isLink);
      if (!RTL_UI) {
        for (let i = tab ? tab._tPos : 0; i < tabs.length; i++) {
          if (
            event.screenY <
            tabs[i].screenY + tabs[i].getBoundingClientRect().height
          ) {
            if (
              event.screenX <
              tabs[i].screenX + tabs[i].getBoundingClientRect().width / 2
            ) {
              return i;
            }
            if (
              event.screenX >
              tabs[i].screenX + tabs[i].getBoundingClientRect().width / 2 &&
              event.screenX <
              tabs[i].screenX + tabs[i].getBoundingClientRect().width
            ) {
              return i + 1;
            }
          }
        }
      } else {
        for (let i = tab ? tab._tPos : 0; i < tabs.length; i++) {
          if (
            event.screenY <
            tabs[i].screenY + tabs[i].getBoundingClientRect().height
          ) {
            if (
              event.screenX <
              tabs[i].screenX + tabs[i].getBoundingClientRect().width &&
              event.screenX >
              tabs[i].screenX + tabs[i].getBoundingClientRect().width / 2
            ) {
              return i;
            }
            if (
              event.screenX <
              tabs[i].screenX + tabs[i].getBoundingClientRect().width / 2
            ) {
              return i + 1;
            }
          }
        }
      }
      return tabs.length;
    }

}