Firefox/Channels/Meetings/2020-03-17

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

Luna , Aryx, RyanVM, pascalc, philipp, taniam, jcristau, Roland, kbrosnan

Schedule Update

• 74.0 live @ 100%
  • No dot release planned this week, watching a couple of potential drivers
• 75.0b5 gtb tomorrow

• Fennec 68.7b1 shipped @ 100% yesterday
  • Fenix Beta migration timing being discussed in light of pwn2own changes

Release Metrics

Report on release criteria metrics from DRIs

• Stability
• Performance
• Security
• Functionality
• Accessibility

Desktop Stability

Nightly

mc2 crash rate: 1.76, crash incidence: 2.31%, mc1 summary score: 6.39 thursday mc2 crash rate: 1.80, crash incidence: 2.80%, mc1 summary score: 11.49

• @ mozilla::dom::Location::CallerSubsumes - https://bugzilla.mozilla.org/show_bug.cgi?id=1614259 still showing up high in volume
• @ mozilla::dom::ClientSource::WindowExecutionReady - https://bugzilla.mozilla.org/show_bug.cgi?id=1619086 diagnostic assert

Beta

mc2 crash rate: 2.52, crash incidence: 1.54%, mc1 summary score: 4.73 thursday mc2 crash rate: 3.25, crash incidence: 1.59%, mc1 summary score: 6.70

[75.0b4]

• audioipc crash in trunc | cubeb_backend::capi::capi_stream_init<T>: https://bugzilla.mozilla.org/show_bug.cgi?id=1621360 - 5.5% of content crashes
• audioipc crash in trunc | std::sys_common::backtrace::__rust_begin_short_backtrace<T>: https://bugzilla.mozilla.org/show_bug.cgi?id=1622931 - 0.5% of browser crashes
• Crash in [@ mozilla::css::StreamLoader::~StreamLoader]: https://bugzilla.mozilla.org/show_bug.cgi?id=1615832 - 0.7% of content crashes
  • a patch landed and status 75 in the bug is set to fixed but crashing volume is still high
  • tracked in https://bugzilla.mozilla.org/show_bug.cgi?id=1605895

Release

mc2 crash rate: 1.29, crash incidence: 1.18%, mc1 summary score: 3.21 thursday mc2 crash rate: 1.13, crash incidence: 1.14%, mc1 summary score: 5.89

[74.0]

• webrtc crash in mozilla::VideoStreamFactory::CreateEncoderStreams on google hangouts/meet: https://bugzilla.mozilla.org/show_bug.cgi?id=1521169 - 1% of content crashes
• Crash in [@ mozilla::dom::BrowsingContext::CanAccess]: https://bugzilla.mozilla.org/show_bug.cgi?id=1576262 - 0.8% of content crashes
  • spiking in 74 - gone in 75

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

• we had an ANR spike earlier this week

QA

Nightly

• feature prioritization is in progress, so far so good

Aurora / Dev Edition

Beta

• Windows Default Browser Agent will be ready in the next Nightly, still targeting March 18, awaiting approval from leadership

Mobile

Action items

User Advocacy / SUMO Report

• bug 1621301 (see also Firefox 74 Desktop User Feedback - Summary )
  • mike conley and scott downe are looking at it? no STR? "My unscientific conclusion :-) since I am tired and am not a Firefox developer :-) is that it definitely looks a regression in QuotaManager, IndexDB, and/or CacheAPI"

Roundtable & Special Topics

• impact of COVID 19 on QA?
  • continuity plans / everyone wfh
  • everything is covered

• challenged/at-risk items?
  • ETP on 76

Post-Mortem (Tues 2wks from GA Release)

• Fx74 next week?
  • [pascal] yes
  • [Tania] yes
  • [roland] yes