WebSerial for Firefox by kuba2k2
WebSerial API Polyfill for Mozilla Firefox browser
2,561 Users2,561 Users
Extension Metadata
About this extension
WebSerial API Polyfill for Mozilla Firefox browser
This add-on allows to use the WebSerial API in Firefox. It uses a native application to communicate with serial ports - works on Windows, Linux (x86-64) and macOS (Intel/Apple Silicon).
The native application needs to be installed on the computer first. The GUI will offer to download the native application when you first try to open a serial port.
Read the installation guide on the project page: https://github.com/kuba2k2/firefox-webserial
Support my work here: https://ko-fi.com/kuba2k2
The add-on is open source. All binaries are built with GitHub Actions:
https://github.com/kuba2k2/firefox-webserial
This add-on allows to use the WebSerial API in Firefox. It uses a native application to communicate with serial ports - works on Windows, Linux (x86-64) and macOS (Intel/Apple Silicon).
The native application needs to be installed on the computer first. The GUI will offer to download the native application when you first try to open a serial port.
Read the installation guide on the project page: https://github.com/kuba2k2/firefox-webserial
Support my work here: https://ko-fi.com/kuba2k2
The add-on is open source. All binaries are built with GitHub Actions:
https://github.com/kuba2k2/firefox-webserial
Rated 4.2 by 17 reviewers
Permissions and data
Required permissions:
- Exchange messages with programs other than Firefox
- Access your data for all websites
More information
- Add-on Links
- Version
- 0.5.0
- Size
- 200.01 KB
- Last updated
- 15 days ago (Jan 15, 2026)
- Related Categories
- License
- MIT License
- Version History
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