CSS3 Overflow-wrap

- WD

Allows lines to be broken within words if an otherwise unbreakable string is too long to fit. Currently mostly supported using the word-wrap property.

IE

  1. 5.5 - 10: Partial support
  2. 11: Partial support

Edge

  1. 12 - 17: Partial support
  2. 18 - 94: Supported
  3. 95: Supported

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 48: Partial support
  3. 49 - 92: Supported
  4. 93: Supported
  5. 94 - 95: Supported

Chrome

  1. 4 - 22: Partial support
  2. 23 - 94: Supported
  3. 95: Supported
  4. 96 - 98: Supported

Safari

  1. 3.1 - 6: Partial support
  2. 6.1 - 14.1: Supported
  3. 15: Supported
  4. TP: Supported

Opera

  1. 9 - 10.1: Not supported
  2. 10.5 - 12: Partial support
  3. 12.1 - 79: Supported
  4. 80: Supported

Safari on iOS

  1. 3.2 - 6.1: Partial support
  2. 7 - 14.8: Supported
  3. 15: Supported

Opera Mini

  1. all: Partial support

Android Browser

  1. 2.1 - 4.3: Partial support
  2. 4.4 - 4.4.4: Supported
  3. 94: Supported

Opera Mobile

  1. 10 - 12.1: Partial support
  2. 64: Supported

Chrome for Android

  1. 94: Supported

Firefox for Android

  1. 92: Supported

UC Browser for Android

  1. 12.12: Supported

Samsung Internet

  1. 4 - 14.0: Supported
  2. 15.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: Supported

KaiOS Browser

  1. 2.5: Partial support

Partial support refers to requiring the legacy name "word-wrap" (rather than "overflow-wrap") to work.

Resources:
Bug on Firefox support
MDN Web Docs - CSS overflow-wrap
MDN Web Docs - CSS word-wrap
Microsoft Edge feature request on UserVoice
WebPlatform Docs