Web Serial Api Browser Support ❲2025❳

As of the current stable release, Firefox does not support the Web Serial API.

“Your browser does not support direct serial communication. Please download our helper app to continue.” web serial api browser support

Web Serial API allows websites to read from and write to serial devices (like Arduino boards or barcode scanners) via a USB or Bluetooth serial connection. As of late 2023, browser support is primarily concentrated in Chromium-based browsers on desktop platforms Current Browser Support Google Chrome As of the current stable release, Firefox does