Browser extensions
Key resources
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Guides -
Whether you're just beginning or looking for more advanced advice, learn about how extensions work and use the WebExtensions API from our extensive range of tutorials and guides . -
References -
Get comprehensive details about the methods, properties, types, and events of the WebExtensions APIs and full details about the manifest keys . -
Firefox workflow -
Discover how to build and publish extensions for Firefox: get the lowdown on developer tools, publication and distribution, and porting on Extension Workshop .
Get started
Concepts
User interface
How to
Firefox workflow
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The Firefox workflow, such as temporarily installing extensions during development , debugging , request the right permissions , and more. -
The web-ext developer tool. -
Porting a Google Chrome extension , differences between desktop and Android , and more. -
Publishing and distribution overview , promoting your extension , the extension lifecycle best practices , and more.
Reference
JavaScript APIs
Manifest keys