# Announcing Web Serial Support in Firefox

DevFeed: [Announcing Web Serial Support in Firefox](<https://devfeed.tech/articles/announcing-web-serial-support-in-firefox-4152.md>)

Original publisher: [Read original article](<https://hacks.mozilla.org/2026/05/web-serial-support-in-firefox/>)

Author: Haik Aftandilian

Published: 2026-05-21T18:00:05Z

Content type: release

Language: en

Sources: [Mozilla Hacks - the Web developer blog](<https://devfeed.tech/sources/mozilla-hacks-the-web-developer-blog.md>)

Topics: [web applications](<https://devfeed.tech/topics/web-applications.md>), [Web Development](<https://devfeed.tech/topics/web-development.md>), [modern web development](<https://devfeed.tech/topics/modern-web-development.md>)

Tags: [api](<https://devfeed.tech/tags/api.md>), [device-apis](<https://devfeed.tech/tags/device-apis.md>), [devices](<https://devfeed.tech/tags/devices.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [hardware](<https://devfeed.tech/tags/hardware.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [python](<https://devfeed.tech/tags/python.md>), [support](<https://devfeed.tech/tags/support.md>), [usb](<https://devfeed.tech/tags/usb.md>), [web-apis](<https://devfeed.tech/tags/web-apis.md>)

## AI overview

Firefox 151 for Desktop adds Web Serial API support, allowing web applications to communicate with compatible serial-connected hardware without native software.

## Source excerpt

Support for Web Serial in Firefox 151 for Desktop Firefox can now connect directly to microcontrollers, development boards, 3D printers, power meters, and other serial-connected hardware from the web. Starting in Firefox 151 for Desktop, support for the Web Serial API allows web applications to communicate with compatible devices without requiring native software. Web Serial [...] The post Announcing Web Serial Support in Firefox appeared first on Mozilla Hacks - the Web developer blog.