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Today’s meeting leader is: jaws

General Topics / Roundtable

Friends of the Firefox team


We’re 96% through M1 for Fluent migration! Great work from kpatenio and niklas!

For contributions from August 25th to September 7th 2021, inclusive.

Resolved bugs (excluding employees)

Fixed more than one bug

  • Ava Katushka
  • Itiel
  • Michael Kohler [:mkohler]

New contributors (🌟 = first patch)

Project Updates

Add-ons / Web Extensions

Addon Manager & about:addons

  •  :gregtatum landed in Firefox 93 a follow up to Bug 1722087 to migrate users away from the old recommended themes that have been removed from the omni.jar - Bug 1723602.

WebExtensions Framework

As part of Fission-related changes, Tomislav is replacing some more remaining bits of the WebExtensions internals still using framescripts and gradually landing changes related to that - Bug 1708243

If you notice recent addons-related regressions in nightly 94 and beta 93 (e.g. like Bug 1729395, affecting the multi-account-containers addon), file a bug and needinfo us.

WebExtension APIs

  • extension.getViews now returns existing sidebar extension pages also when called with a `windowId` filter - Bug 1612390 (closed by one of the changes landed as part of Bug 1708243)

Downloads Panel

Ava wrapped up her Outreachy internship last week (thank you!). Some of her work includes these exciting changes / features to Firefox downloads and can be tested when the is enabled:

See meta-bug for this project: We plan to enable these changes for just Firefox Nightly in 95. Currently, we are working on fixing tests when the pref is enabled:


  • Nightly now has an about:unloads page to show some of the locally collected heuristics being used to decide which tabs to unload on memory pressure


Form Autofill

  • Bug 1687684 - Fix credit card autofill when the site prefills fields
  • Bug 1688209 - Prevent simple hidden fields from being eligible for autofill.

High-Contrast Mode (MSU Capstone project)

  • Molly and Micah have kicked off another semester working with MSU capstone students. They’ll be helping us make a number of improvements to high-contrast mode on Firefox Desktop. See this meta bug to follow along.
  • We’ll be doing a hack weekend on September 11 & 12 where students will get ramped up on their first bugs and tools needed to do Firefox development.

Lint, Docs and Workflow

Password Manager

  • Welcome Serg Galich, he’ll be working on credential management with Tim and Dimi.

Search and Navigation

  • Drew landed some early UI changes, part of Firefox Suggest, in Nightly. In particular, labels have been added to Address Bar groups. A goal of Firefox Suggest is to provide smarter and more useful results, and better grouping, while also improving our understanding of how the address bar results are perceived. More experiments are still ongoing and planned for the short future.
  • Daisuke landed a performance improvement to the address bar tokenizer. Bug 1726837



  • [mconley] Should have put this under General, but I did an “Intro to Firefox Desktop Engineering” that I recorded and put on YouTube while livestreaming. Maybe useful for folks who want foundational underpinnings on some Firefox Desktop concepts.