To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
Speed up the development process by using add-ons to troubleshoot, edit, and debug web projects without ever clicking away from Firefox.
Create a safe and fun online experience while planning everything the family does offline with add-ons that keep the family cooking.
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 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!