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• Latest browser releases:
• Chrome 134
• Chrome Android 134
• Edge 134
• Firefox 136
• Firefox for Android 136
• Safari 18.3
• Safari on iOS 18.3

New features in Edge 134 (released on 2025-03-06)

• Customizable <select>

  Limited availability

  Tags: css html Groups: HTML > Forms HTML > HTML elements

  The <select> element's appearance, including the button, selected option, picker dropdown, and options, can be customized using CSS.

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox ❌
  • Firefox for Android ❌
  • Safari ❌
  • Safari on iOS ❌

• :has-slotted

  Limited availability

  Tags: css Groups: CSS > Selectors Web Components

  The :has-slotted CSS pseudo-class matches <slot> elements where the fallback content is not shown. The pseudo-class matches any slotted content, including white space, text nodes, or elements.

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

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox 136 Released on 2025-03-04
  • Firefox for Android 136 Released on 2025-03-04
  • Safari ❌ Vendor position : support
  • Safari on iOS ❌ Vendor position : support

• Error.isError()

  Limited availability

  Tags: javascript

  The Error.isError() static method checks whether a value is an Error object.

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox ❌
  • Firefox for Android ❌
  • Safari ❌
  • Safari on iOS ❌

• <meta name="application-title">

  Limited availability

  Tags: html Groups: Progressive web app

  The name="application-title" attribute for the <meta> HTML element sets an installed web application's title bar text.

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox ❌
  • Firefox for Android ❌
  • Safari ❌
  • Safari on iOS ❌

• dialog.requestClose()

  Limited availability

  Tags: api Groups: HTML > HTML elements

  The requestClose() method of a <dialog> HTML element closes the dialog, firing a cancel event first, which listeners can use to prevent the dialog from closing. This differs from the close() method, which only fires the non-cancelable close event.

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox ❌
  • Firefox for Android ❌
  • Safari ❌
  • Safari on iOS ❌

• Shared storage locks

  Limited availability

  Tags: api

  The withLock option to set(), append(), delete(), clear(), and batchUpdate() methods of the sharedStorage API prevents duplicate reporting from cross-site race conditions.

  Learn more

  • Chrome 134 Released on 2025-03-04
  • Chrome Android 134 Released on 2025-03-04
  • Edge 134 Released on 2025-03-06
  • Firefox ❌
  • Firefox for Android ❌
  • Safari ❌
  • Safari on iOS ❌