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Mar 19, 2024

General Topics / Roundtable

  • [mconley] There’s an issue with artifact builds on macOS. The TL;DR is that if you have a local artifact build from anytime after the end of February, it might attempt to download and apply a patch, thinking that it’s on the “nightly” update channel. This can result in some weird behaviour, where (sometimes) ./mach run will result in a quick restart of the build, and a Nightly will launch with the official Nightly branding.

  • [gijs] Firefox for Android has joined us in mozilla-central! 🎉

Friends of the Firefox team


Resolved bugs (excluding employees)

Script to find new contributors from bug list

Volunteers that fixed more than one bug

  • Bojidar Marinov [:bojidar-bg]
  • Nikki Bernobic [:echrs]

New contributors (🌟 = first patch)

  • Will be filled in after the meeting

General triage

Project Updates


Add-ons / Web Extensions

Addon Manager & about:addons

  • Firefox users using the openSUSE Tumbleweed rolling release Linux distribution have been experiencing add-on signing verification issues due to a crypto-policies system config file that disabled SHA-1 in a recent update made by openSUSE. We have investigated the issue (see Bug 1885971) and the openSUSE fix for this issue is tracked in their Bugzilla instance as

    • ⚠️ No need to call this out in the headlines

WebExtension APIs

  • Starting in Firefox 125 proxy.onRequest allows proxyAuthorizationHeader to be used also on HTTP intercepted requests - Bug 1794464

Developer Tools


WebDriver BiDi

  • Henrik Skupin vendored the new Puppeteer v22.4.0 release into mozilla-central (#1878632)
  • Henrik Skupin fixed mach puppeteer-test command to enable running the tests with Chrome, including the ability to specify a custom binary (#1877629)
  • Henrik Skupin fixed the behavior when running with only WebDriver BiDi enabled (without CDP), no recommended automation preferences were being set for Firefox (#1882748)
  • Henrik Skupin resolved a race condition in WebDriver BiDi when creating or switching between tabs within the same OS window. This fix ensures that the document.visibilityState value is correctly set to hidden when the corresponding commands are executed (#1877469)
  • Alexandra Borovova implemented the input.setFiles command, which allows clients to set the files property of a given input element with type file to a list of file paths (#1855040)
  • Julian Descottes added a new capability userAgent for WebDriver Classic and BiDi, which returns the default user agent (#1885495)

ESMification status

  • Standard8 has been cleaning up some obsolete JSM references in code.
  • ESMified status:

    • devtools: 89.29%

    • mobile: 98.37%

    • Everywhere else: 100%

    • Only 7 JSMs left in the tree!

    • Total: 99.54% (+0.19% from last time)

  • #esmification on Matrix

Lint, Docs and Workflow

Migration Improvements


Performance Tools (aka Firefox Profiler)

Screenshots (enabled by default in Nightly)

  • This was mentioned in the meeting but I wanted to shout out again that the screenshots component is now enabled in Nightly (bug 1789727)! This allows screenshots on about: pages, has better performance, keyboard accessibility, and much more!
  • niklas fixed a bug where pasting into slack wasn’t working
  • niklas fixed a bug where black lines could appear in screenshots on certain zoom levels
  • Niklas is a new owner of the Screenshots module

Search and Navigation

  • Daisuke fixed a 22-year old bug and we now prevent passwords in urls from being saved in history.
  • Marco fixed a few bugs related to and then enabled cross-container tab search on beta and release. This should go out with Firefox 125.
  • Search Consolidation

    • The search configuration defines the search engines which are displayed to the user by default, according to their region, locale and other settings.

    • Standard8 and mcheang have enabled the new search configuration on nightly, due to ship in FF 126

    • This replaces the previous WebExtension + remote settings collection with a single remote settings collection for the configuration, and a separate one for icons.

    • It also addresses complexities and other issues that were in the old configuration.

    • The same collection will also be picked up later this year by our mobile platforms, allowing easier updates to our search engine configuration across products.

  • Marco fixed a bug where bookmarks could not be imported for very large sets of bookmarks.
  • jteow, karendeep and scunnane continued work on improving our SERP (Search Engine Result Page) telemetry.
  • adw and dharvey continued work on improving cross-platform suggestions