Http3

I gave three short talks at this year’s HTTP Workshop. Increase and evolve HTTP/3 & QUIC Slides: mxinden-bot.github.io/slides/04-quic-discussion A discussion deck. HTTP/3 sits around 30% and has plateaued. I cover the ways to measure that share. Then what holds adoption back: server and framework support; “security” software and enterprise middleboxes that break QUIC; and the server-side performance gap to TCP. I raise QUIC v2 as an anti-ossification concern, barely deployed. I close on the HTTP/3-native use cases (WebTransport, Media over QUIC, MASQUE) and the two ways to reach HTTP/3, Alt-Svc and HTTPS records, with the latter preferred. ...

I gave a talk on the upcoming WebTransport protocol in the Browser Devroom at FOSDEM 2026. WebTransport is an upcoming protocol (standardized by the IETF) and Web API (standardized by the W3C) for bidirectional communication on the web. It provides multiplexed streams and unreliable datagrams on top of HTTP/3 and HTTP/2. This talk explains how WebTransport works at the protocol level, how it maps to QUIC when run on top of HTTP/3, and how its capabilities differ from WebSocket. The session will also cover the current state of browser and server support, and where the ecosystem is heading next. ...

Andrew, a colleague, and I presented an outlook for Firefox and the web. The Web’s transport stack is changing rapidly, with QUIC, HTTP/3, and encrypted DNS seeing broad adoption. This talk gives an overview of the modern network protocols Firefox already deploys and invests in, including QUIC and HTTP/3’s growing share of Web traffic. It will highlight what Firefox actually sends on the wire today, what benefits we observe in practice, and where the Web’s protocol landscape stands in early 2026. ...