Firefox without any doubt is the best web browser today. And the best part about is that you can add various functions to it to make your task whole lot easier. While using these Firefox add-on you can simply use your time in a more efficiently. Looking for the best and most useful Firefox add-on from the huge library can be a difficult task….so to make it easier for our readers today I have compiled a list of 30+ best Firefox add-on for you….so pick your favorite and use your time in more productive manner!!