Collections are groups of related add-ons that anyone can create and share. Explore collections created by other users or create your own.
Speed up the development process by using add-ons to troubleshoot, edit, and debug web projects without ever clicking away from Firefox.
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!
Play games right from your browser, anytime. Puzzles, action, classic video games, even stuff for kids—turn Firefox into your very own arcade!
Take better screenshots, improve your video experience, finally learn how to make a GIF, and other fancy media tools.
Give your Firefox a winter wardrobe change!
Enjoy better security and more convenience with an excellent password manager.