CSS widows & orphans

- REC

IE

  1. 8
  2. 9
  3. 10
  4. 11

Edge

  1. 15
  2. 16
  3. 17
  4. 18

Firefox

  1. 63
  2. 64
  3. 65
  4. 66
  5. 67
  6. 68

Chrome

  1. 70
  2. 71
  3. 72
  4. 73
  5. 74
  6. 75
  7. 76

Safari

  1. 10.1
  2. 11
  3. 11.1
  4. 12
  5. 12.1
  6. TP

Opera

  1. 55
  2. 56
  3. 57
  4. 58

iOS Safari

  1. 10.3
  2. 11.0-11.2
  3. 11.3-11.4
  4. 12.0-12.1
  5. 12.2

Opera Mini

  1. all

Android Browser

  1. 4.2-4.3
  2. 4.4
  3. 4.4.3-4.4.4
  4. 67

Blackberry Browser

  1. 7
  2. 10

Opera Mobile

  1. 11.5
  2. 12
  3. 12.1
  4. 46

Chrome for Android

  1. 71

Firefox for Android

  1. 64

IE Mobile

  1. 10
  2. 11

UC Browser for Android

  1. 11.8

Samsung Internet

  1. 5.0-5.4
  2. 6.2-6.4
  3. 7.2-7.4
  4. 8.2

QQ Browser

  1. 1.2

Baidu Browser

  1. 7.12

Some older WebKit-based browsers recognize the properties, but do not appear to have actual support