Permissions Policy

- WD

A security mechanism that allows developers to explicitly enable or disable various powerful browser features for a given site. Similar to Document Policy.

IE

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

Edge

  1. 12 - 18: Not supported
  2. 79 - 85: Not supported
  3. 86 - 87: Disabled by default
  4. 88 - 91: Partial support
  5. 92: Partial support

Firefox

  1. 2 - 73: Not supported
  2. 74 - 89: Not supported
  3. 90: Not supported
  4. 91 - 92: Not supported

Chrome

  1. 4 - 59: Not supported
  2. 60 - 85: Not supported
  3. 86 - 87: Disabled by default
  4. 88 - 91: Partial support
  5. 92: Partial support
  6. 93 - 95: Partial support

Safari

  1. 3.1 - 11: Not supported
  2. 11.1 - 14: Not supported
  3. 14.1: Not supported
  4. 15 - TP: Not supported

Opera

  1. 9 - 46: Not supported
  2. 47 - 71: Not supported
  3. 72 - 76: Disabled by default
  4. 77: Disabled by default

Safari on iOS

  1. 3.2 - 11.2: Not supported
  2. 11.3 - 14.4: Not supported
  3. 14.5: Not supported

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 92: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 64: Not supported

Chrome for Android

  1. 92: Partial support

Firefox for Android

  1. 90: Not supported

UC Browser for Android

  1. 12.12: Not supported

Samsung Internet

  1. 4 - 7.4: Not supported
  2. 8.2 - 13.0: Not supported
  3. 14.0: Not supported

QQ Browser

  1. 10.4: Not supported

Baidu Browser

  1. 7.12: Not supported

KaiOS Browser

  1. 2.5: Not supported

Standard support includes the HTTP Permissions-Policy header, allow attribute on iframes and the document.permissionsPolicy JS API.

Resources:
Firefox implementation tracker
W3C - Permissions Policy Explainer
List of known features