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Build Adafruit projects right from Firefox

Recorded: May 24, 2026, 5:57 p.m.

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Build adafruit projects right from Firefox — Firefox.com

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Build Adafruit projects right from Firefox

Use Web Serial to connect, code, and control compatible hardware devices directly from your browser.


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Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR 64-bit

Download Firefox ESR 32-bit

Download a different build

Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR

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Recommended by Adafruit for Web Serial programming

Firefox gives Adafruit users a direct path from idea to connected hardware project — no extra tools or complex setup required.

Connect directly to your boards

Use Web Serial to communicate with compatible devices from Firefox, right from supported web tools.


Try it out

Less setup, more making

Open Firefox, connect your device, and start coding without a separate desktop app.

Built for the open web

Firefox is open source and made by Mozilla, the people-first organization behind an independent web.


Download Firefox

Firefox is no longer supported on Windows 8.1 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR 64-bit

Download Firefox ESR 32-bit

Download a different build

Firefox is no longer supported on macOS 10.14 and below.
Please download Firefox ESR (Extended Support Release) to use Firefox.

Download Firefox ESR

Firefox Privacy Notice

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Firefox provides Adafruit users with a streamlined methodology for developing hardware projects by leveraging the Web Serial API to interact directly with compatible devices. This approach establishes a direct pathway from conceptualizing an idea to achieving a connected hardware project, eliminating the need for auxiliary tools or complicated initial setup. The core functionality centers on utilizing Web Serial to facilitate communication with compatible hardware devices directly from within the Firefox browser. This capability allows users to connect directly to their electronic boards and manage their operation through supported web tools, effectively integrating communication and control directly into the web environment.

The benefit of this integration is the reduction of setup complexity, enabling users to begin coding and interaction immediately upon connecting their device in Firefox, bypassing the requirement for separate, dedicated desktop applications. This method capitalizes on Firefox's foundation in the open web, offering an accessible framework for physical computing. The recommendation by Adafruit positions Firefox as an ideal platform for Web Serial programming, emphasizing its role in bridging the gap between software development and physical hardware interaction.

For implementation, users can connect to their hardware devices using Web Serial capabilities implemented within Firefox. This allows for real-time communication, enabling coding and control of the connected hardware directly through the browser interface. This system inherently builds upon Firefox's open-source nature, making it a robust environment for this kind of interaction. Furthermore, the platform is positioned as a method for making hardware projects more accessible by embedding control and coding functionalities directly into the familiar web interface.

Regarding compatibility, the provided information notes that Firefox is no longer supported on specific operating system versions, namely Windows 8.1 and below, and macOS 10.14 and below. Users are directed to download the Extended Support Release (ESR) version of Firefox to ensure continued functionality. This context is important for understanding the operational environment within which the Web Serial functionality is effectively deployed. The overall philosophy presented is that by utilizing Firefox's capabilities, users can engage in connected hardware development with significantly less overhead and complexity.