Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
CloseCollections
Collections are groups of related add-ons that anyone can create and share. Explore collections created by other users or create your own.
Web Developer's Toolbox
Speed up the development process by using add-ons to troubleshoot, edit, and debug web projects without ever clicking away from Firefox.
Get smart on privacy
How do you protect and manage your privacy online? The add-ons in this collection are designed to help give you more control of your personal information.
Complete Themes
Complete Themes transform the look of your browser with styles for the window frame, address bar, buttons, tabs, and menus. New featured complete themes are picked by a community board every quarter!
Games!
Play games right from your browser, anytime. Puzzles, action, classic video games, even stuff for kids—turn Firefox into your very own arcade!
Must-Have Media
Take better screenshots, improve your video experience, finally learn how to make a GIF, and other fancy media tools.
Winter ThemesTo create your own collections, you must have a Mozilla Add-ons account.
