location == "chrome://browser/content/browser.xul" && (function(event) {  
        var self = arguments.callee; 
        if ( !event ) {
             ["dragstart", "dragover", "drop"].forEach(function(type) { gBrowser.mPanelContainer.addEventListener(type, self, false) });
         
         addDestructor(function() {  
                     ["dragstart", "dragover", "drop"].forEach(function(type) { gBrowser.mPanelContainer.removeEventListener(type, self, false) }); 
                });
                 
              return;
              };
        
        switch (event.type) {
        case "dragstart":
                {
                        self.startPoint = [event.screenX, event.screenY];
                        self.sourceNode = event.target;
                        event.target.localName == "img" && event.dataTransfer.setData("application/x-moz-file-promise-url", event.target.src);
                        break;
                }
        case "dragover":
                {
                        self.startPoint && (Components.classes["@mozilla.org/widget/dragservice;1"].getService(Components.interfaces.nsIDragService).getCurrentSession().canDrop = true);
                        break;
                }
        case "drop":
                {
                        if (self.startPoint && event.target.localName != "textarea" && (!(event.target.localName == "input" && (event.target.type == "text" || event.target.type == "password"))) && event.target.contentEditable != "true") {
                                event.preventDefault();
                                event.stopPropagation();
                                var [subX, subY] = [event.screenX - self.startPoint[0], event.screenY - self.startPoint[1]];
                                var [distX, distY] = [(subX > 0 ? subX : (-subX)), (subY > 0 ? subY : (-subY))];
                                var direction;
                                var t = content.getSelection().toString();
                                if (distX > distY) direction = subX < 0 ? "L" : "R";
                                else direction = subY < 0 ? "U" : "D";                      
                               
                                
                                // Изображения ....
                                if ( event.dataTransfer.types.contains("application/x-moz-file-promise-url")) {
                                          // сохранить изображение или ссылку без запроса на место сохранения
                                          var img = event.dataTransfer.getData("application/x-moz-file-promise-url");
                                          var path = "/home/wl/" + new Date().toLocaleFormat("%d.%m.%Y");
                                          // создать папку если не существует ....
                                          const file = Components.classes["@mozilla.org/file/local;1"].createInstance(Components.interfaces.nsILocalFile);
                                          file.initWithPath( path );
                                          if ( !file.exists() || !file.isDirectory() ) file.create(Components.interfaces.nsIFile.DIRECTORY_TYPE, 0777);
                                          Application.prefs.setValue("browser.download.dir", path );
                                          setTimeout(function() { saveImageURL( img, 0, 0, 0, 1, null, content.document) }, 100);
                                          //saveImageURL(event.dataTransfer.getData("application/x-moz-file-promise-url"), 0, 0, 0, 1, null, content.document);
                                          return;
                                     }
                                     
                                // Выделенный текст ....
                                if ( event.dataTransfer.getData("text/unicode") ) { 
                                     var sel = event.dataTransfer.getData("text/unicode");                              
                                          // поиск текста в текущем поисковике в новой активной странице
                                          var ss = Cc["@mozilla.org/browser/search-service;1"].getService(Ci.nsIBrowserSearchService);
                                          var submission = ss.currentEngine.getSubmission( sel, null );
                                          gBrowser.loadOneTab( submission.uri.spec, null, null, submission.postData, true, false );
                                          return;
                                     }                                  
                                self.startPoint = 0;
                        }
                }
        }
})();

// Подсказка кнопки ............................................................................
this.tooltipText = "CB drag and go \nЗапускает жести мыши для ЛКМ на странице \nЛ: Редактировать эту кнопку";

var navBar = document.getElementById("nav-bar");
var statusBar = document.getElementById("status-bar");

var toggleNavBarBut = document.createElement("toolbarbutton");
toggleNavBarBut.setAttribute("tooltiptext", "Л: Переключить панель навигации");
statusBar.appendChild( toggleNavBarBut );

toggleNavBarBut.onclick = function(e) {
   if ( e.button == 0 ) {
        navBar.collapsed = !navBar.collapsed;
        document.persist( navBar.id, "collapsed");
        }
};

function toggleButtImage() { 
   toggleNavBarBut.image = toolbar.collapsed
   ? 'data:image/png;base64,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'
   : 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQBAMAAADt3eJSAAAAA3NCSVQICAjb4U/gAAAAD1BMVEUfact50/fF+v/M//////8mt18DAAAABXRSTlP/////APu2DlMAAAAJcEhZcwAACvAAAArwAUKsNJgAAAAgdEVYdFNvZnR3YXJlAE1hY3JvbWVkaWEgRmlyZXdvcmtzIE1Yu5EqJAAAADhJREFUeJxjcHFgAAIXFwYXB2NjYwYWEMNQUJCZAcYwYIEwGBigDEFhDIYQ+QygpUZKIAbIGQwsANX+EGaBLn8yAAAAAElFTkSuQmCC';
};
toggleButtImage();
navBar.addEventListener("DOMAttrModified", toggleButtImage, false );

window.onkeydown = function(e) { 
   if ( e.keyCode == 123 ) { 
        navBar.collapsed = !navBar.collapsed;
        document.persist( navBar.id, "collapsed");
        }
};

addDestructor(function() {
   navBar.removeEventListener("DOMAttrModified", toggleButtImage, false );
   statusBar.removeChild( toggleNavBarBut );
});

// Открывать ссылки в новой вкладке длинным кликом, от 15.09.2013. ................................
(function func() {
   
   const time = 200;            // время удержания в мс
   const background = false;     // открывать в фоновой вкладке
   const nextToCurrent = true;  // открывать рядом с текущей вкладкой
 
   function handleLongPress(e) {     
      setTimeout(function() { try { func.removeListener() } catch(e){} }, 0)
      
      var lab = XULBrowserWindow.statusTextField.label;      
      if ( e.button || !lab || lab.startsWith("javascript") ) return;

      if ( e.type == "mousedown") { 
           func.timer = setTimeout(function() {
                function c(e) { e.preventDefault(); e.stopPropagation() };
                addEventListener('click', c, true);
                func.removeListener = function() { removeEventListener('click', c, true) }; 
              
                gBrowser.loadOneTab( lab, {relatedToCurrent: nextToCurrent, inBackground: background, referrerURI: makeURI(content.location.href)} );
           }, time );  
           }
      else 
           clearTimeout( func.timer );
   };
   ["mouseup", "mousedown", "dragstart"]
   .forEach(function(type) { addEventListener(type, handleLongPress, true, gBrowser) });

})();

function handleLongPress(e) { //  LOG( e.originalTarget.localName );
   if ( e.button > 0 ) return

   if ( e.type == 'mousedown' && ["a", "b", "img", "em", "font", "strong", "span", "slider", "thumb", "scrollbarbutton"].indexOf( e.originalTarget.localName ) == -1 ) {      
        
        arguments.callee.timerLongPress = setTimeout(function() {
             
             var sel = document.commandDispatcher.focusedWindow.getSelection().toString(); 

             if ( sel == '' ) {    
                  var theBox = document.commandDispatcher.focusedElement;
                  if ( theBox && (theBox.type == "text" || theBox.type == "textarea") ) { 
                       var startPos = theBox.selectionStart;
                   var endPos = theBox.selectionEnd;
                   var sel = theBox.value.substring(startPos, endPos);  
                       }          
                  }
             if ( sel !== '' ) return;                       
             
             BrowserFullScreen(); 
        }, 500 ); 
                   
        }
       
   if ( e.type == 'mouseup' || e.type == 'dragstart' ) { window.clearTimeout( arguments.callee.timerLongPress ) };                  
};
addEventListener('mouseup', handleLongPress, false, gBrowser );
addEventListener('mousedown', handleLongPress, false, gBrowser );
addEventListener('dragstart', handleLongPress, false, gBrowser );