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Updates for Firefox 150 beta#29352

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caugner merged 1 commit intomdn:mainfrom
Elchi3:firefox-150-beta
Mar 27, 2026
Merged

Updates for Firefox 150 beta#29352
caugner merged 1 commit intomdn:mainfrom
Elchi3:firefox-150-beta

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@Elchi3
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@Elchi3 Elchi3 commented Mar 26, 2026

The https://collector.openwebdocs.org/ project (v10.17.7) found new features shipping in Firefox 150 beta which was released yesterday. Currently, the collector covers about 90% of BCD, so the following list might not be exhaustive. Also, if a feature is in Firefox Nightly only, it is not considered here.

With this PR, BCD considers the following 65 features as shipping in Firefox 150:

  • api.CSSFontFaceDescriptors (ref and applies to the following sub features)
  • api.CSSFontFaceDescriptors.ascent-override
  • api.CSSFontFaceDescriptors.ascentOverride
  • api.CSSFontFaceDescriptors.descent-override
  • api.CSSFontFaceDescriptors.descentOverride
  • api.CSSFontFaceDescriptors.font-display
  • api.CSSFontFaceDescriptors.font-family
  • api.CSSFontFaceDescriptors.font-feature-settings
  • api.CSSFontFaceDescriptors.font-language-override
  • api.CSSFontFaceDescriptors.font-stretch
  • api.CSSFontFaceDescriptors.font-style
  • api.CSSFontFaceDescriptors.font-variation-settings
  • api.CSSFontFaceDescriptors.font-weight
  • api.CSSFontFaceDescriptors.fontDisplay
  • api.CSSFontFaceDescriptors.fontFamily
  • api.CSSFontFaceDescriptors.fontFeatureSettings
  • api.CSSFontFaceDescriptors.fontLanguageOverride
  • api.CSSFontFaceDescriptors.fontStretch
  • api.CSSFontFaceDescriptors.fontStyle
  • api.CSSFontFaceDescriptors.fontVariationSettings
  • api.CSSFontFaceDescriptors.fontWeight
  • api.CSSFontFaceDescriptors.line-gap-override
  • api.CSSFontFaceDescriptors.lineGapOverride
  • api.CSSFontFaceDescriptors.size-adjust
  • api.CSSFontFaceDescriptors.sizeAdjust
  • api.CSSFontFaceDescriptors.src
  • api.CSSFontFaceDescriptors.unicode-range
  • api.CSSFontFaceDescriptors.unicodeRange
  • api.Document.ariaNotify (ref)
  • api.Document.caretRangeFromPoint (ref)
  • api.Element.ariaNotify (ref)
  • api.HighlightRegistry.highlightsFromPoint (ref)
  • api.RTCError (ref)
  • api.RTCError.RTCError (ref)
  • api.RTCError.errorDetail (ref)
  • api.RTCError.receivedAlert (ref)
  • api.RTCError.sctpCauseCode (ref)
  • api.RTCError.sdpLineNumber (ref)
  • api.RTCError.sentAlert (ref)
  • api.RTCErrorEvent (ref)
  • api.RTCErrorEvent.RTCErrorEvent (ref)
  • api.RTCErrorEvent.error (ref)
  • api.RTCIceTransport.role (ref)
  • api.RTCPeerConnection.icecandidateerror_event (ref)
  • api.RTCPeerConnectionIceErrorEvent (ref)
  • api.RTCPeerConnectionIceErrorEvent.RTCPeerConnectionIceErrorEvent (ref)
  • api.RTCPeerConnectionIceErrorEvent.address (ref)
  • api.RTCPeerConnectionIceErrorEvent.errorCode (ref)
  • api.RTCPeerConnectionIceErrorEvent.errorText (ref)
  • api.RTCPeerConnectionIceErrorEvent.port (ref)
  • api.RTCPeerConnectionIceErrorEvent.url (ref)
  • api.VisualViewport.scrollend_event (ref)
  • css.properties.all.revert-rule (ref)
  • css.selectors.buffering (updated in a different PR)
  • css.selectors.muted (updated in a different PR)
  • css.selectors.paused (updated in a different PR)
  • css.selectors.playing (updated in a different PR)
  • css.selectors.seeking (updated in a different PR)
  • css.selectors.stalled (updated in a different PR)
  • css.selectors.volume-locked (updated in a different PR)
  • webdriver.bidi.emulation.setNetworkConditions (updated in a different PR)
  • webdriver.bidi.emulation.setNetworkConditions.contexts_parameter (updated in a different PR)
  • webdriver.bidi.emulation.setNetworkConditions.networkConditions_parameter (updated in a different PR)
  • webdriver.bidi.emulation.setNetworkConditions.networkConditions_parameter.offline (updated in a different PR)
  • webdriver.bidi.emulation.setNetworkConditions.userContexts_parameter (updated in a different PR)

@github-actions github-actions bot added data:api Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS size:l [PR only] 101-1000 LoC changed labels Mar 26, 2026
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

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data:api Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API data:css Compat data for CSS features. https://developer.mozilla.org/docs/Web/CSS size:l [PR only] 101-1000 LoC changed

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