Firefox/Channels/Meetings/2021-05-25

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Channel Meeting Details

• Tuesdays at 10am and Thursdays at 7:30am Pacific Time
• Riot #release-drivers for backchannel
• Past meeting notes: https://wiki.mozilla.org/Firefox/Channels/Meetings

Video/Teleconference Details

• Zoom Meeting ID: 536 097 768
• https://mozilla.zoom.us/j/536097768
• +17207072699,,536097768# US
• Find your local number: https://zoom.us/u/agItTmqIu

REMEMBER

These notes are read by people who weren't able to attend the meeting. Please make sure to include links and context so they can be understood.

Attendees

pascal, RyanVM, TaniaM, Aryx, bittin, telin, dveditz, JR, kbrosnan

Schedule Update

• Desktop 89 RC shipped today
• Go to build for Fenix 89 RC planned for today

Desktop Stability

Nightly

mc2 crash rate: 2.00 (-0.24 compared to previous week), crash incidence: 1.72% (-0.11pp)

mc1 crash rate: 4.07 crashes/1k usage hours

• Crash in [@ nsLayoutUtils::ShouldDisableApzForElement]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1712742
  • prominent content crash in the last 2 Nightly versions

• Crash in [@ mozilla::layers::LockD3DTexture<T>]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1709603
  • only affecting Nightly across multiple Gecko versions, behind a preference?
  • 50-100 crashes/day
  • stalled

Beta

mc2 crash rate: 1.79 (-0.37), crash incidence: 0.98% (-0.20pp)

mc1 crash rate: 2.55

• nothing unusual

Release

mc2 crash rate: 1.39 (-0.05), crash incidence: 0.66% (-0.03pp)

mc1 crash rate: 1.33

• temporary increase in crash signatures associated with old style add-ons in China getting updated

QA

Nightly

• Kick-offs and test planning in progress
• Background Update Agent - on track, nightly test report wasn't required
• Nightly Regression testing - planned for this week
• PI created for proton p2 bug backlog work
• [PI-1030] PDF.js JS and XFA - yet to land/not testable

Beta

• Pre-release sign-offs were completed last week
  • Panels, App Menu, Tabs bar, Infobars received yellow pre-relase sign-offs
  • Details:https://trello.com/invite/b/en2tOql1/914684f59023104bf71ed90db327c654/desktop-qa-firefox-feature-status
• RC Build validation is in progress
• Proton Retrospective - Testing feedback to be discussed tomorrow

Feature Status Review

• Firefox 89 Beta - Feature remain a GO.
  • No major concerns outstanding.
• Firefox 90 Nightly
  • Support of XFA PDF.js remains CHALLENGED. Engineering reported low confidence this will be ready in time. Likely to slip to Fx91. Waiting on a go/no-go update from Marco C.
  • LSNG remains planned for Fx90 and Fx91 Gradual rollout via experimenter

SUMO Report

• Widevine: https://bugzilla.mozilla.org/show_bug.cgi?id=1705138
  • mitigation response: KB article + common response for contributors. Waiting on confirmation of issue hitting 89 before public comms.