rem: aEvent.target.addEventListener("mousemove", BookmarksMenuController.onMouseMove, false) 
add: aEvent.target.addEventListener("mousemove", BookmarksMenuController.onMouseMove, false); 
context:   createContextMenu: function (aEvent)  {    var target = document.popupNode;    target.focus() // buttons in the pt have -moz-user-focus: ignore -->    this._selection   = this.getBTSelection(target);    this._orientation = this.getBTOrientation(aEvent, target);    this._target      = this.getBTTarget(target, this._orientation);    BookmarksCommand.createContextMenu(aEvent, this._selection);    this.onCommandUpdate();    aEvent.target.addEventListener("mousemove", BookmarksMenuController.onMouseMove, false)  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/91826d00aaee6161d23473d1b93a86ba438c2948/bookmarksMenu.js/clean/xpfe/components/bookmarks/resources/bookmarksMenu.js