Can I use
?

Custom protocol handling

- LS

Method of allowing a webpage to handle a given protocol using navigator.registerProtocolHandler. This allows certain URLs to be opened by a given web application, for example mailto: addresses can be opened by a webmail client.

Chrome

  1. ❌ 4 - 12: Not supported
  2. ✅ 13 - 134: Supported
  3. ✅ 135: Supported
  4. ✅ 136 - 138: Supported

Edge

  1. ❌ 12 - 18: Not supported
  2. ✅ 79 - 134: Supported
  3. ✅ 135: Supported

Safari

  1. ❌ 3.1 - 18.3: Not supported
  2. ❌ 18.4: Not supported
  3. ❌ 18.5 - TP: Not supported

Firefox

  1. ❌ 2: Not supported
  2. ✅ 3 - 136: Supported
  3. ✅ 137: Supported
  4. ✅ 138 - 140: Supported

Opera

  1. ❌ 9 - 11.5: Not supported
  2. ✅ 11.6 - 116: Supported
  3. ✅ 117: Supported

IE

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

Chrome for Android

  1. ❌ 135: Not supported

Safari on iOS

  1. ❌ 3.2 - 18.3: Not supported
  2. ❌ 18.4: Not supported
  3. ❌ 18.5: Not supported

Samsung Internet

  1. ❌ 4 - 26: Not supported
  2. ❌ 27: Not supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ❌ 10 - 12.1: Not supported
  2. ❌ 80: Not supported

UC Browser for Android

  1. ❌ 15.5: Not supported

Android Browser

  1. ❌ 2.1 - 4.4.4: Not supported
  2. ❌ 135: Not supported

Firefox for Android

  1. ❌ 137: Not supported

QQ Browser

  1. ❌ 14.9: Not supported

Baidu Browser

  1. ❌ 13.52: Not supported

KaiOS Browser

  1. ❌ 2.5: Not supported
  2. ❌ 3: Not supported
Resources:
MDN Web Docs - Register protocol handler