Mozilla Firefox working slow issue? this kind of issue are very common issue facing by web browser users. so if you face same issue that time you can just follows these steps and then access your web pages on Mozilla Firefox so whenever you face this kinds of issue that time first you need to delete your all browser history and then updated is. you can also need to reset your Mozilla Firefox browser. but if you want to any technical help and support that time you can just make a call on Mozilla Firefox technical support customer service phone number its toll free.