Categories

Social and Sharing

These add-ons help you share photos, bookmarks, and movies with your friends -- or even the whole world. They can also help you find and use content that other people have shared either publicly or specifically with you.

Bookmarks

Have trouble remembering where you stashed the bookmark for that fantastic cookie recipe (no, the other one, with the pecans)? Tired of looking for a bookmark and then remembering it's on your other computer? Want to share your great Web finds with your friends, or see what's hot? These add-ons can help you with all of that and more.

Site-specific

These add-ons are specially tailored to enhance specific web sites, helping you work around known problems, integrate available data, or even bring the site's services right into your browser's interface.

Web and Developer Tools

These add-ons are the secret weapons in any web developer's toolbox, and are also useful to advanced users who are curious about what's going on "under the hood" at their favorite web sites.

Photos and Media

These add-ons help you find, manage, or share images, videos, and music.

Downloading and File Management

Tools to help you find, download, and organize files of all kinds.

Privacy and Security

Some of these add-ons will help you control and protect your personal data, while others help defend against some types of web attack.

Search Tools

These add-ons help you work with search engines and other ways of finding what you're looking for on the web. Also check out our list of <a href="/search-engines/">search plugins</a> to add more options to your Firefox search bar.

Web Data, Alerts, and Widgets

These tools notify you about or help you work with various types of data found on web pages.

RSS, News and Blogging

Stay up to date with frequently updated content from your favorite news and blog sites with these add-ons.

Language Support and Translation

These add-ons provide you with tools for working with multiple languages, including translation.

Interface Customizations

These are add-ons that give you even more control over your favorite parts of the Firefox interface, such as toolbars, the download manager, or tabbed browsing.

Add-on types

Extension (Extensions)

Extensions are small add-ons that add new functionality to Firefox, from a simple toolbar button to a completely new feature. They allow you to customize Firefox to fit your own needs and preferences, while letting us keep Firefox itself light and lean.

Theme (Themes)

Themes are like new clothes for your Firefox. A theme can change only a few colors, or every piece of Firefox's appearance. It's another great way to personalize Firefox to your tastes.

Dictionary (Dictionaries)

These dictionaries work with the spell-checking feature in Firefox.

Search Engine (Search Engines)

Add these search engines to the Search Bar in the upper-right corner of Firefox, for quick access to your favorite search sites.

Plugin (Plugins)

Plugins help your browser perform specific functions like viewing special graphic formats or playing multimedia files. Plugins are slightly different from extensions, which modify or add to existing functionality.