1983570 - DevTools Release Tasks - Cycle 144

Status: RESOLVED FIXED

(DevTools :: General, task, P2)

Description

[Julian Descottes [:jdescottes]]

Soft Freeze / Merge Date: 2025-09-11 / 2025-09-15 (from the Release train page)
More details about any of those tasks can be found at: https://firefox-source-docs.mozilla.org/devtools/release.html

Anytime during the release:

• [X] outdated backward compatibility code removed (doc, searchfox)
  • [X] Bug 1983571
• [X] outdated telemetry probes removed (bz query)
  • Nothing
• [X] in devtools-qa bugs, needinfo the triage owner (or the assignee if they are a team member) to test the bug in beta channel (bz query)
  • Nothing

Close to the end of the release (eg 1 week before code freeze)

• [X] Update MDN data for the Compatibility panel follow devtools/shared/compatibility/README.md
• [X] Check the browser information in the Compatibility Panel is up to date (example: version number for Firefox Nightly should be 144):
  • Steps: Open the Inspector, then select the Compatibility side panel, and click on Settings to see the list of all browsers
• [X] smoke test for remote debugging against version 143 (doc)
• [X] smoke test for remote debugging against the same version (version 144) (same doc)
• [X] check xpcshell debugging (doc)

Marionette and BiDi:

• [X] close to the end of release (~1 week), based on the list of bugs fixed during the release, update Marionette release notes on MDN for 143: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/143#webdriver_conformance_marionette.
• [X] right after the release of Firefox 143, send a mail to the dev-webdriver mailing list.

For reference: full list of Marionette and BiDi bugs fixed during the release.

Template suggestion for the Marionette email (adjust wording if relevant):

Firefox 143 has just been released, containing updates for our WebDriver (BiDi, Marionette) support.

You can find all the details in the change log for web developers:

https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/143#webdriver_conformance_webdriver_bidi_marionette

See https://docs.google.com/document/d/1t8pR_lcTkjZjX1ddOf6tyvPY8dtE519Vlu8wXX58x_E for detailed explanations about Marionette tasks, or contact :whimboo / :jdescottes for help

Nice to have:

• [ ] Generate webidl-pure-allowlist.js and webidl-deprecated-list.js (doc)

Comment 1

[Julian Descottes [:jdescottes]]

Still the same issues with xpcshell async stepping, but this is blocked on Bug 1970687.

Comment 2

[Henrik Skupin [:whimboo][⌚️UTC+1]]

PR for WebDriver on MDN is at https://github.com/mdn/content/pull/41099