WebTransport

- WD

Protocol framework to send and receive data from servers using HTTP3. Similar to WebSockets but with support for multiple streams, unidirectional streams, out-of-order delivery, and reliable as well as unreliable transport.

Chrome

  1. 4 - 90: Not supported
  2. 91 - 94: Disabled by default
  3. 95 - 96: Not supported
  4. 97 - 107: Supported
  5. 108: Supported
  6. 109 - 111: Supported

Edge

  1. 12 - 97: Not supported
  2. 98 - 106: Supported
  3. 107: Supported

Safari

  1. 3.1 - 16.0: Not supported
  2. 16.1: Not supported
  3. 16.2 - TP: Not supported

Firefox

  1. 2 - 106: Not supported
  2. 107: Not supported
  3. 108 - 109: Not supported

Opera

  1. 9 - 82: Not supported
  2. 83 - 91: Supported
  3. 92: Supported

IE

  1. 5.5 - 10: Not supported
  2. 11: Not supported

Chrome for Android

  1. 107: Supported

Safari on iOS

  1. 3.2 - 16.0: Not supported
  2. 16.1: Not supported

Samsung Internet

  1. 4 - 17.0: Not supported
  2. 18.0: Supported
  3. 19.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 72: Supported

UC Browser for Android

  1. 13.4: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 107: Supported

Firefox for Android

  1. 106: Not supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
Resources:
Firefox support bug
Explainer with examples
web.dev article