CSS user-select: none

- WD

Method of preventing text/element selection using CSS.

Chrome

  1. 4 - 53: Supported
  2. 54 - 107: Supported
  3. 108: Supported
  4. 109 - 111: Supported

Edge

  1. 12 - 18: Supported
  2. 79 - 106: Supported
  3. 107: Supported

Safari

  1. 3.1 - 16.0: Supported
  2. 16.1: Supported
  3. 16.2: Supported
  4. TP: Supported

Firefox

  1. 2 - 68: Supported
  2. 69 - 106: Supported
  3. 107: Supported
  4. 108 - 109: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 40: Supported
  3. 41 - 91: Supported
  4. 92: Supported

IE

  1. 5.5 - 9: Not supported
  2. 10: Supported
  3. 11: Supported

Chrome for Android

  1. 107: Supported

Safari on iOS

  1. 3.2 - 16.0: Supported
  2. 16.1: Supported

Samsung Internet

  1. 4 - 5.4: Supported
  2. 6.2 - 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: Supported

Android Browser

  1. 2.1 - 4.4.4: Supported
  2. 107: Supported

Firefox for Android

  1. 106: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
WebKit bug to unprefix `-webkit-user-select`
CSS Tricks article
MDN Web Docs - CSS user-select
MSDN Documentation