What are Firefox add-ons?

Add-ons allow you to customize your Firefox browser and enhance the way you use the web. There are Firefox add-ons that stop Facebook from tracking you around the web, translate text into other languages, check your spelling or grammar, or spruce up the way your browser looks.

How do I install Firefox add-ons?

To install a recommended add-on, click the blue + Install Theme or + Add to Firefox button, depending on the type of add-on. At the bottom of the list of recommended add-ons, there's also a Find more add-ons button you can click. It will take you to addons.mozilla.org where you can search for specific add-ons.

Should you install Firefox add-ons?

(Yes, that’s what Mozilla calls their “extensions.”) Whatever you call them, there are good options available to help you do everything from improving your privacy to getting around restrictions you’ll encounter across the internet. Firefox add-ons add lots of useful features to the browser, but you shouldn’t install them haphazardly.