Can I use
?

Selection API

- WD

API for accessing selected content of a document, including the window.getSelection() method, as well as the selectstart & selectionchange events on document.

Chrome

  1. ﹖ 4 - 14: Support unknown
  2. ✅ 15 - 135: Supported
  3. ✅ 136: Supported
  4. ✅ 137 - 139: Supported

Edge

  1. ✅ 12 - 135: Supported
  2. ✅ 136: Supported

Safari

  1. ﹖ 3.1 - 5: Support unknown
  2. ✅ 5.1 - 18.4: Supported
  3. ✅ 18.5: Supported
  4. ✅ TP: Supported

Firefox

  1. ◐ 2 - 42: Partial support
  2. ◐ 43 - 51: Partial support
  3. ✅ 52 - 137: Supported
  4. ✅ 138: Supported
  5. ✅ 139 - 141: Supported

Opera

  1. ◐ 9 - 12.1: Partial support
  2. ✅ 15 - 116: Supported
  3. ✅ 117: Supported

IE

  1. ﹖ 5.5: Support unknown
  2. ◐ 6 - 8: Partial support
  3. ✅ 9 - 10: Supported
  4. ✅ 11: Supported

Chrome for Android

  1. ✅ 136: Supported

Safari on iOS

  1. ◐ 3.2 - 4.1: Partial support
  2. ﹖ 4.2: Support unknown
  3. ◐ 5 - 18.4: Partial support
  4. ◐ 18.5: Partial support

Samsung Internet

  1. ✅ 4 - 26: Supported
  2. ✅ 27: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ﹖ 10 - 12: Support unknown
  2. ◐ 12.1: Partial support
  3. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ﹖ 2.1 - 4.1: Support unknown
  2. ✅ 4.2: Supported
  3. ✅ 4.4 - 4.4.4: Supported
  4. ✅ 136: Supported

Firefox for Android

  1. ✅ 137: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ◐ 2.5: Partial support
  2. ✅ 3: Supported

See also support for the related DOM range

Resources:
Firefox support bug