Firefox/Channels/Meetings/2020-06-23

Channel Meeting Details

• Tuesdays at 10am and Thursdays at 8am 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

Attendees

Aryx, jcristau, philipp, telin, RyanVM, overholt, Roland, kbrosnan, pascal,taniam, dveditz

Schedule Update

• 68.10esr-build1 desktop built and ready on localtest
• 68.10esr-build1 fennec shipping at 5%
• 78.0esr-build2 desktop ready on localtest

• 78.0-build1 on beta (and release-localtest)

• fenix 5.2 is shipping at 100%
  • looking to switch to geckoview 79 soon in preparation for Release migration

Desktop Stability

Nightly

mc2 crash rate: 1.53, crash incidence: 2.44%, mc1 summary score: 5.39 last meeting: mc2 crash rate: 1.65, crash incidence: 2.25%, mc1 summary score: 4.66

browser crashes:

• http3 crash https://bugzilla.mozilla.org/show_bug.cgi?id=1646788
  • disabled by default, but top browser crash the last few days
• diagnostic assert from https://bugzilla.mozilla.org/show_bug.cgi?id=1641211 is also pretty high
  • should be fixed now
• mozilla::fontlist::FontList::Alloc browser crash (diagnostic assert) showing up this week, might need a new bug
• [@ mozilla::dom::ContentParent::WaitForLaunchSync | mozilla::dom::ContentParent::GetNewOrUsedBrowserProcess] diagnostic assert firing since yesterday
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1647624

content crashes:

• linux crash @ mozilla::widget::WaylandDisplayGet is fairly high (https://bugzilla.mozilla.org/show_bug.cgi?id=1645678)
• gfxFontGroup::GetUnderlineOffset (https://bugzilla.mozilla.org/show_bug.cgi?id=1647573 ) startup crash shows up, but seems to affect a small number of installs
• Crash in [@ mozilla::dom::JSWindowActor::ReceiveRawMessage] https://bugzilla.mozilla.org/show_bug.cgi?id=1563825 is still hanging around

Beta

mc2 crash rate: 1.39, crash incidence: 1.04%, mc1 summary score: 4.69 last meeting: mc2 crash rate: 10.29, crash incidence: 1.89%, mc1 summary score: 7.03

[78.0rc1]

• not much data but patch for https://bugzilla.mozilla.org/show_bug.cgi?id=1641211 looks successful so far
• mc2 rates are slightly below what we had at the end of the 77.0b cycle

Release

mc2 crash rate: 1.37, crash incidence: 1.02%, mc1 summary score: 2.18 last meeting: mc2 crash rate: 1.45, crash incidence: 1.05%, mc1 summary score: 2.57

• Printing crashes in https://bugzilla.mozilla.org/show_bug.cgi?id=1645005 are declining and may have gotten fixed in in KB4567512 (still a few 100 crashes per day though)
• Crash spike in zh-CN builds caused by Mozilla China extension https://bugzilla.mozilla.org/show_bug.cgi?id=1610246 (recurring issue)

Mobile Stability

Fennec

• Crash rate is calculated based on usage hours (the time Firefox is actively used).
• Usage hours will be significantly lower on Fennec than on desktop Firefox, so we can't compare mobile rates to desktop rates.

Fenix

• https://bugzilla.mozilla.org/show_bug.cgi?id=1647011
• https://github.com/mozilla/missioncontrol/issues/385

QA

Nightly

• Nightly test reports are due today
  • Nightly report has been dropped for WebGL Remoting due to an open bug (https://bugzilla.mozilla.org/show_bug.cgi?id=1632249) that blocks testing. we have notified project team on #webglremoting-qa
• late PI Request https://jira.mozilla.com/browse/PI-673 (continuation of PI-633) filed last week

Aurora / Dev Edition

Beta

• For off train work Private Relay, we sent out Yellow sign-off. Details: https://docs.google.com/document/d/1ifhdaiEBFEyX4Clfmc5ccnrFvXZMMPDPPo61qppvG0Y/edit
• Migrate macos 10.9/10.10/10.11 users to ESR78 - ESR 78 now available, but the change is still not ready for testing, we reached out on #macos-migration-to-esr
• delay in WNP testing - content expected to be live on June 26th. Slack thread - https://mozilla.slack.com/archives/CAC9YSH3P/p1592899928178700

Mobile

• 9MB increase in libxul https://bugzilla.mozilla.org/show_bug.cgi?id=1647780
  • looks like it could be fixed by https://bugzilla.mozilla.org/show_bug.cgi?id=1644553

Action items

Feature Status Review

• [Thomas] Not much to report as I was out of the office yesterday. Features look to be on track.
  • DOH experiment in Fx78 has recevied a Yellow sign off from QA. The team has looked over the issue and doesn't consider them blockers. Planning to move forward with the experiment.

SUMO Report

• [roland] nothing to report

Roundtable & Special Topics

Post-Mortem (Tues 2wks from GA Release)