Animated PNG (APNG)

- UNOFF

Like animated GIFs, but allowing 24-bit colors and alpha transparency

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79: Supported
  3. 80: Supported

Firefox

  1. 2: Not supported
  2. 3 - 71: Supported
  3. 72: Supported
  4. 73 - 74: Supported

Chrome

  1. 4 - 58: Not supported
  2. 59 - 79: Supported
  3. 80: Supported
  4. 81 - 83: Supported

Safari

  1. 3.1 - 7.1: Not supported
  2. 8 - 12.1: Supported
  3. 13: Supported
  4. TP: Supported

Opera

  1. 9: Not supported
  2. 9.5 - 12.1: Supported
  3. 15 - 45: Not supported
  4. 46 - 65: Supported
  5. 66: Supported

iOS Safari

  1. 3.2 - 7.1: Not supported
  2. 8 - 13.1: Supported
  3. 13.2: Supported
  4. 13.3: Supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 76: Supported

Blackberry Browser

  1. 7: Not supported
  2. 10: Not supported

Opera Mobile

  1. 10 - 12.1: Supported
  2. 46: Supported

Chrome for Android

  1. 79: Supported

Firefox for Android

  1. 68: Supported

IE Mobile

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

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 6.4: Not supported
  2. 7.2 - 9.2: Supported
  3. 10.1: Supported

QQ Browser

  1. 1.2: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Supported

Where support for APNG is missing, only the first frame is displayed

Resources:
Opera extension providing support
Chrome extension providing support
Chromium issue (fixed)
MDN Web Docs - APNG
Wikipedia
Polyfill using canvas
Microsoft Edge feature request on UserVoice (under review)