CSS Backdrop Filter

- UNOFF

Method of applying filter effects (like blur, grayscale or hue) to content/elements below the target element.

Chrome

  1. 4 - 46: Not supported
  2. 47 - 75: Disabled by default
  3. 76 - 121: Supported
  4. 122: Supported
  5. 123 - 125: Supported

Edge

  1. 12 - 16: Not supported
  2. 17 - 18: Supported
  3. 79 - 120: Supported
  4. 121: Supported

Safari

  1. 3.1 - 8: Not supported
  2. 9 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4 - TP: Supported

Firefox

  1. 2 - 69: Not supported
  2. 70 - 102: Disabled by default
  3. 103 - 122: Supported
  4. 123: Supported
  5. 124 - 126: Supported

Opera

  1. 9 - 33: Not supported
  2. 34 - 63: Disabled by default
  3. 64 - 105: Supported
  4. 106: Supported

IE

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

Chrome for Android

  1. 121: Supported

Safari on iOS

  1. 3.2 - 8.4: Not supported
  2. 9 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4: Supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 11.2: Disabled by default
  3. 12.0 - 22: Supported
  4. 23: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 121: Supported

Firefox for Android

  1. 122: Supported

QQ Browser

  1. 13.1: Not supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Not supported
  2. 3: Not supported
Resources:
WebKit bug to unprefix `-webkit-backdrop-filter`
MDN Web Docs - CSS backdrop filter
Blog post