1957012 - Enable PerformanceEventTiming.interactionId on Nightly

Status: RESOLVED FIXED

(Core :: DOM: Performance APIs, task)

Description

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

We implemented PerformanceEventTiming.interactionId behind a pref in bug 1934683. Currently there are some spec issues, that's why we are not enabling it yet. But we should enable the dom.performance.event_timing.enable_interactionid pref on nightly to get interop numbers and test it in a broader audience.

Comment 1

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Attachment: Bug 1957012 - Enable PerformanceEventTiming.interactionId on nightly r?sefeng!

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f5063080b1e6
Enable PerformanceEventTiming.interactionId on nightly r=sefeng

Comment 3

[agoloman]

Backed out for causing bc failures.

• Backout link
• Push with failures
• Failure Log browser_readerMode_menu.js
• Failure Log browser_426329.js
• Failure Log test_textbox_search.xhtml

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/ae72d3b804d8
Enable PerformanceEventTiming.interactionId on nightly r=sefeng

Comment 5

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/ae72d3b804d8

Comment 6

[Ryan VanderMeulen [:RyanVM]]

Do we want to add this to the Nightly relnotes? Please add a relnote-firefox? nomination if yes.

Comment 7

[Nazım Can Altınova [:canova][:canaltinova on phabricator]]

Yes, it would be good to mention this in the relnotes.

Release Note Request (optional, but appreciated)
[Why is this notable]:
This adds support for the interactionId attribute in the PerformanceEventTiming API, which is used to calculate the "Interaction to Next Paint" (INP) metric—part of Core Web Vitals. It helps analyze responsiveness and debug long task delays by grouping related input events.
[Affects Firefox for Android]: Yes
[Suggested wording]:
Added support for PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric.
[Links (documentation, blog post, etc)]:
https://developer.mozilla.org/en-US/docs/Web/API/PerformanceEventTiming/interactionId
https://developer.mozilla.org/en-US/docs/Glossary/Interaction_to_next_paint
https://web.dev/articles/inp

Comment 8

[Ryan VanderMeulen [:RyanVM]]

Added to the Nightly relnotes.

Comment 9

[Ryan VanderMeulen [:RyanVM]]

Removed from the Nightly release notes as it's been included for more than 3 cycles now. Feel free to nominate this for a fresh release note once this feature is ready to ride the trains.