Firefox has added WebSerial support in 151. This is useful for cloudless communication with #embedded devices.
Rather than using the polyfill (https://github.com/kuba2k2/firefox-webserial) that requires cumbersome installation of a native binary, this has all the native code shipped, but seems to require a (presumably trivial) extension per site that uses it due to browsers' sad habit of taking blame for already vulnerable setups.
Looking forward to trying it out, and hoping for WebBluetoot and WebUSB to be next.
chrysn
npub1fw…qnhyf
2026-05-19 18:41:27 UTC
Author Public Key
npub1fwh05jl2ya7xf0wdur38h7zyts272jnfyn6f22an9622wcxe86esqqnhyfSeen on
wss://relay.ditto.pubPublished at
2026-05-19 18:41:27 UTCEvent JSON
{
"id": "94af20a54ef9423c09a14a5bef331bedd036aeda70d259b855fe3dc035b94867",
"pubkey": "4baefa4bea277c64bdcde0e27bf8445c15e54a6924f4952bb32e94a760d93eb3",
"created_at": 1779216087,
"kind": 1,
"tags": [
[
"t",
"embedded"
],
[
"proxy",
"https://chaos.social/users/chrysn/statuses/116602705535239909",
"activitypub"
],
[
"client",
"Mostr",
"31990:6be38f8c63df7dbf84db7ec4a6e6fbbd8d19dca3b980efad18585c46f04b26f9:mostr",
"wss://relay.ditto.pub"
]
],
"content": "Firefox has added WebSerial support in 151. This is useful for cloudless communication with #embedded devices.\nRather than using the polyfill (https://github.com/kuba2k2/firefox-webserial) that requires cumbersome installation of a native binary, this has all the native code shipped, but seems to require a (presumably trivial) extension per site that uses it due to browsers' sad habit of taking blame for already vulnerable setups.\nLooking forward to trying it out, and hoping for WebBluetoot and WebUSB to be next.",
"sig": "1c90d89e78f68078aa8823be37295b42cf5584fdd97b518d370b4c3d932c855772890682cd44fb67c6d3d793b6cb5864f615f410aad4fcb137204153180146ba"
}