navigation disable in FIREFOX

Don´t you know, how to disable it? I found this solution for IE and it works pretty good, but not with firefox

package my.util;

import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.servlet.http.HttpServletResponse;
	 
public class CacheControlPhaseListener implements PhaseListener
{
    public PhaseId getPhaseId(){
        return PhaseId.RENDER_RESPONSE;
    }
 
    public void afterPhase(PhaseEvent event){}
 
    public void beforePhase(PhaseEvent event){
        FacesContext facesContext = event.getFacesContext();
        HttpServletResponse response = (HttpServletResponse) facesContext.getExternalContext().getResponse();
        response.addHeader("Pragma", "no-cache");
        response.addHeader("Cache-Control", "no-cache");
        // Stronger according to blog comment below that references HTTP spec
        response.addHeader("Cache-Control", "no-store");
        response.addHeader("Cache-Control", "must-revalidate");
        // some date in the past
        response.addHeader("Expires", "Mon, 8 Aug 2006 10:00:00 GMT");
    }
}

faces-config.xml: