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Updates for Firefox 154 beta#30116

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Elchi3:firefox-154-beta
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Updates for Firefox 154 beta#30116
Elchi3 wants to merge 1 commit into
mdn:mainfrom
Elchi3:firefox-154-beta

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@Elchi3

@Elchi3 Elchi3 commented Jul 23, 2026

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The https://collector.openwebdocs.org/ project (v10.20.4) found new features shipping in Firefox 154 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 features as shipping in Firefox 154 (bold features are new keys in BCD).

  • api.RTCDtlsTransport.error_event
  • api.RTCIceCandidatePair
  • api.RTCIceCandidatePair.local
  • api.RTCIceCandidatePair.remote
  • api.RTCIceTransport.getSelectedCandidatePair
  • api.RTCIceTransport.selectedcandidatepairchange_event
  • css.properties.text-box-edge
  • css.properties.text-box-edge.alphabetic
  • css.properties.text-box-edge.auto
  • css.properties.text-box-edge.cap
  • css.properties.text-box-edge.ex
  • css.properties.text-box-edge.ideographic
  • css.properties.text-box-edge.ideographic-ink
  • css.properties.text-box-edge.text
  • css.properties.text-box-trim
  • css.properties.text-box-trim.none
  • css.properties.text-box-trim.trim-both
  • css.properties.text-box-trim.trim-end
  • css.properties.text-box-trim.trim-start
  • css.properties.text-box
  • css.properties.text-box.alphabetic
  • css.properties.text-box.auto
  • css.properties.text-box.cap
  • css.properties.text-box.ex
  • css.properties.text-box.ideographic
  • css.properties.text-box.ideographic-ink
  • css.properties.text-box.none
  • css.properties.text-box.normal
  • css.properties.text-box.text
  • css.properties.text-box.trim-both
  • css.properties.text-box.trim-end
  • css.properties.text-box.trim-start
  • css.types.sibling-count
  • css.types.sibling-index
  • javascript.builtins.Iterator.chunks
  • javascript.builtins.Iterator.includes
  • javascript.builtins.Iterator.join
  • javascript.builtins.Iterator.windows

Updated in other PRs:

  • webdriver.bidi.browsingContext.domContentLoaded_event.userContext_parameter
  • webdriver.bidi.browsingContext.downloadEnd_event.download_parameter
  • webdriver.bidi.browsingContext.downloadEnd_event.userContext_parameter
  • webdriver.bidi.browsingContext.downloadWillBegin_event.download_parameter
  • webdriver.bidi.browsingContext.downloadWillBegin_event.userContext_parameter
  • webdriver.bidi.browsingContext.fragmentNavigated_event.userContext_parameter
  • webdriver.bidi.browsingContext.historyUpdated_event.userContext_parameter
  • webdriver.bidi.browsingContext.load_event.userContext_parameter
  • webdriver.bidi.browsingContext.navigationCommitted_event.userContext_parameter
  • webdriver.bidi.browsingContext.navigationFailed_event.userContext_parameter
  • webdriver.bidi.browsingContext.navigationStarted_event.userContext_parameter
  • webdriver.bidi.browsingContext.startScreencast
  • webdriver.bidi.browsingContext.startScreencast.context_parameter
  • webdriver.bidi.browsingContext.startScreencast.mimeType_parameter
  • webdriver.bidi.browsingContext.startScreencast.video_parameter
  • webdriver.bidi.browsingContext.stopScreencast
  • webdriver.bidi.browsingContext.stopScreencast.screencast_parameter
  • webdriver.bidi.browsingContext.userPromptClosed_event.userContext_parameter
  • webdriver.bidi.browsingContext.userPromptOpened_event.userContext_parameter
  • webdriver.bidi.input.fileDialogOpened_event.userContext_parameter
  • webdriver.bidi.network.authRequired_event.userContext_parameter
  • webdriver.bidi.network.beforeRequestSent_event.userContext_parameter
  • webdriver.bidi.network.fetchError_event.userContext_parameter
  • webdriver.bidi.network.responseCompleted_event.userContext_parameter
  • webdriver.bidi.network.responseStarted_event.userContext_parameter
  • webdriver.bidi.script.realmCreated_event.userContext_parameter

For more Firefox 154 info, see also mdn/mdn#850 and https://www.firefox.com/en-US/firefox/154.0beta/releasenotes/

@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 data:js Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript size:l [PR only] 101-1000 LoC changed labels Jul 23, 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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Labels

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 data:js Compat data for JS/ECMAScript features. https://developer.mozilla.org/docs/Web/JavaScript size:l [PR only] 101-1000 LoC changed

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