将鼠标映射到用于在桌面浏览器中测试移动网站的触摸事件

I'm currently developing a website that should also work on mobile devices. But since I'm (of course) heavily using Javascript, I would prefer to have Desktop-based testing environment (FireFox, FireBug, etc.). Is there some way to map Mouse Events to Touch Events to be able to test the Website in a Desktop Browser, but "simulating" all the touch stuff as if it were a Mobile Device?I'm currently developing a website that should