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New features in Firefox for Android 138 (released on 2025-04-29)

• Error.isError()

  Limited availability

  Tags: javascript

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

  Baseline availability blocked since April 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 138 Released on 2025-04-29
  • Firefox for Android 138 Released on 2025-04-29
  • Safari ❌
  • Safari on iOS ❌