This is great, before this you had to use Chrome for any sort of serial interface to gadgets. (or some weird firefox plugin that required some other running process.)

Doesn't work for me. Error: can't access property "requestPort", serialLib is undefined

Firefox 151.0.2 (64-Bit) on Windows 11.

I'm on Zen which is still on FF 150.x right now, and I laughed a little when going to the Adafruit demo page and it says "Sorry, Web Serial is not supported on this device, make sure you're running Chrome 89 or later" across the top without any mention of Firefox 151

I read the title and initially assumed this was about web serials[1] in the sense of serialized fiction posted to the internet.

1: https://en.wikipedia.org/wiki/Web_fiction#Web_serial

WebUSB next? I would like to be able to configure my keyboard but it can only be done via their website which requires WebUSB.