To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseChoose from thousands of extra features and styles to make Firefox your own.
CloseAdd-ons let millions of Firefox users enhance and customize their browsing experience. If you're a Web developer and know HTML, JavaScript and CSS, you already have what it takes to make great add-ons with the Add-on SDK. What's more, add-ons built with the SDK are restartless by default.
Start Making Add-ons
Get add-on development guidance in a top-notch collection of tutorials, articles, and more.
The official documentation on APIs and languages. What you need, when you need it, to create your masterpiece.
Start-to-finish success stories. See how add-on developers made magic with Mozilla.
Discuss development, brainstorm ideas, and make connections in the world of add-ons.
Auto-generate add-on packaging by entering basic info and picking UI parts. Get working without setup.
Check your add-on for common problems and errors. Open to anyone, not just add-ons hosted here.
To create your own collections, you must have a Mozilla Add-ons account.
Create an Add-ons Account
or log in to your current account