// ЛКМ переключить настройки кнопки и стиль ..........
this._handleClick = function() setStyleForPages(void(run.value = !run.value));


// Создать настройки кнопки в about:config если они не существуют ..........
var s = "CB" + _id.slice(20) + ".setStyleForPage";
cbu.isPref(s, false);
var previousUri = "CB" + _id.slice(20) + ".previousUri";


// Иконка для включеной кнопки  ..........
var icon = self.ownerDocument.getAnonymousElementByAttribute(self, "class", "toolbarbutton-icon");
var styleImage = "data:image/x-icon;base64,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";


// Получить настройки кнопки и css код из вкладки Справка ..........
var css = self.Help;
var run = Application.prefs.get(s);


// Переключить css стиль для страницы ..........
function setStyleForPages(reason) {
   if ( reason == "destructor" ) return; 

   var sss = Cc["@mozilla.org/content/style-sheet-service;1"].getService(Ci.nsIStyleSheetService); 
   var uri = makeURI("data:text/css," + encodeURIComponent(css)); 
   
   try { sss.unregisterSheet(Services[_id + "previousUri"] || uri, 0) } catch(e) {};
   Services[_id + "previousUri"] = uri;
   
   run.value && !reason && sss.loadAndRegisterSheet( uri, 0 );
   icon.src = run.value ? styleImage : self.image;
};
addDestructor(setStyleForPages);
run.value && setStyleForPages();

@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);
#ctraddon_extra-bar {
display:none!important;
}