• Filters:
• Newly available
• Widely available
• Limited availability
• One missing engine
• Discouraged
• All features

• Features only in:
• Chromium
• Firefox
• Safari

• Browser releases:
• Chrome 141
• Chrome Android 141
• Edge
• Firefox 143
• Firefox for Android 143
• Safari 26
• Safari on iOS 26

New features in Firefox 143 (released on 2025-09-16)

• ::details-content

  Limited availability

  The ::details-content pseudo-element selects the expandable content of a <details> element, excluding the <summary>.

  Baseline availability blocked since September 2025 by Safari (1 months)

  Learn more

  • Chrome 131 Released on 2024-11-12
  • Chrome Android 131 Released on 2024-11-12
  • Edge 131 Released on 2024-11-14
  • Firefox 143 Released on 2025-09-16
  • Firefox for Android 143 Released on 2025-09-16
  • Safari ❌
  • Safari on iOS ❌