Firefox is indeed a very useful browser; the browser doesn’t just pack some useful feature. It is the hub of all the customization. There are not just fancy audio converter or translator, but some of the add-ons are so much useful that if you combine all the add-ons, it becomes the most powerful browser ever.
The list of add-ons on Firefox is way too much and we can’t tell you install all of them. So, we have picked some of favorite add-ons; just for you.