Mozilla
The articles below include content about downloading and building Mozilla code. In addition, you'll find helpful articles about how the code works, how to build add-ons for Mozilla applications and the like.
- Add-ons
Add-ons allow developers to extend and modify the functionality of Firefox. They are written using standard Web technologies - JavaScript, HTML, and CSS - plus some dedicated JavaScript APIs.
- Firefox
Firefox is Mozilla's popular web browser, available for multiple platforms including Windows, macOS, and Linux on the desktop and all Android and iOS mobile devices. With broad compatibility, the latest in web technologies, and powerful development tools, Firefox is a great choice for both web developers and end users.
More from Mozilla
Mozilla's products are designed to support those who make the web better—safer, faster, and more accessible for everyone.
Mozilla VPN
Surf, stream and get work done on servers in over 30 countries for a secure internet connection with a new perspective.
Thunderbird
Access all your email, calendars, and contacts in one fast app. Filter and organize them the way you like.
Mozilla New Products
We're building solutions that put people first. Join us in testing new products to shape the next generation of technology.
Solo
Solo will instantly create a beautiful website so you can grow your business. Connect and host your custom domain for free.
0din
0din is a GenAI bug bounty platform dedicated to identifying and mitigating vulnerabilities in AI systems.
Mozilla.ai
Mozilla.ai is creating the infrastructure and products to build intelligent systems that align with your goals. We believe the next generation of AI solutions should be trustworthy, transparent, and controllable. Learn more