Firefox/Channels/Meetings/2019-02-26

Channel Meeting Details

• Tuesdays 10am and Thursdays at 8am Pacific Time
• irc.mozilla.org #planning for backchannel

Video/Teleconference Details - NEW

• 650-903-0800 or 650-215-1282 x92 Conf# 99951 (US/INTL)
• 1-800-707-2533 (pin 369) Conf# 99951 (US)
• Vidyo Room: Release Coordination
• Vidyo Guest URL

Attendees

lizzard, jcristau, aryx,philipp,Thomas, RyanVM, Tom,tania, pascal, dveditz, overholt

Schedule Update

Current releases dashboard: https://mozilla.github.io/delivery-dashboard

• 66 beta 11 build was Monday, released this morning
• beta 12 thurs/fri; 13 & 14 next week, then RC week.

• Windows-only 65.0.2 gtb planned for tomorrow

• nightly updates pinned to yesterday's build due to session restore breakage (bug 1530683)

Off-train releases

Current Shield studies: https://strategy-and-insights.mozilla.com/shield-studies/index.html

Stability

• It looks as if Android nightlies were missing for several days: https://dbaron.org/mozilla/crashes-by-build
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1530289 is one bug on file

Nightly

firefox nightly summary score: 4.58, Thursday 3.50

• Very high volume WebRTC regression https://bugzilla.mozilla.org/show_bug.cgi?id=1530107. Resolved by a backout
• Some regressions for landing support for gapless audio support - https://bugzilla.mozilla.org/show_bug.cgi?id=1524890
  • https://bugzil.la/1530278,1530322,1530280,1530305
  • potential fix landing in bug 1530322
• Crash in [@ mozilla::dom::ClientSource::SetController] - https://bugzilla.mozilla.org/show_bug.cgi?id=1530168
• Small spike in JS https://bugzilla.mozilla.org/show_bug.cgi?id=1530672
• Latest Nightly Crash Triage https://wiki.mozilla.org/NightlyCrashTriage/2019Q1

Beta

firefox beta summary score: 2.58, Thursday 2.65

[66.0b10]

• Crash in [@ mozilla::PresShell::DoFlushPendingNotifications]: https://bugzilla.mozilla.org/show_bug.cgi?id=1530177 - 0.9% of browser crashes
  • fix in beta 11
• https://bugzilla.mozilla.org/show_bug.cgi?id=1530165 - 0.5% of browser crashes
• Crash in [@ mozilla::gfx::DrawTargetD2D1::CreateBrushForPattern]: https://bugzilla.mozilla.org/show_bug.cgi?id=1526045 - 2% of tab crashes
  • some patches already landed, issue is still under active investigation
• Crash in [@ mozilla::gfx::Factory::GetD2DDeviceContext]: https://bugzilla.mozilla.org/show_bug.cgi?id=1521774 - 0.7% of tab crashes
  • patch landed in b8 but no significant improvement in crash #

Release

firefox release summary score: 1.94, Thursday 2.00

[65.0.1]

• Newly filed Mac signature related to copy and pasting https://bugzilla.mozilla.org/show_bug.cgi?id=1530519
• Crash in [@ mozilla::ipc::IPDLParamTraits<T>::Write]: https://bugzilla.mozilla.org/show_bug.cgi?id=1484524 - 3.8% of tab crashes
• AsyncShutdownTimeout in sanitize.js https://bugzilla.mozilla.org/show_bug.cgi?id=1524200 - 3.5% of browser crashes
  • work on this still ongoing - diagnostic patches/improvements landing on nightly
• Crashes with WMF VP9 playback on Win 10 N: https://bugzilla.mozilla.org/show_bug.cgi?id=1521370 - 2% of tab crashes
• https://bugzilla.mozilla.org/show_bug.cgi?id=1524208 - 0.5% of browser crashes
  • patch in beta - crash volume reduced, but not totally gone

[60.5.2esr]

• crash fix for [@ mozilla::dom::FetchDriver::HttpFetch ] successful: https://bugzilla.mozilla.org/show_bug.cgi?id=1505844

Mobile

• 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.

• Release

fennec release summary score: 22.18, Thursday 22.10

• • Not much to report for Release - score looks decent and there are no new crashes in the top 20

• Beta

fennec beta summary score: 20.49, Thursday 20.92

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1526396 is #4 overall, but we have been unable to repro

• Nightly

fennec nightly summary score: 55.85, Thursday 47.35

• • https://bugzilla.mozilla.org/show_bug.cgi?id=1529697 was resolved by a backout
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1420745 spiked in the build from 2-25, is now the top overall crash

QA

Nightly

Aurora / Dev Edition

Beta

Action items

Mobile Stability

SUMO Report / User Advocacy

Roundtable

• 66 blockers:

   ** https://bugzilla.mozilla.org/show_bug.cgi?id=1498973  Major issues on particular laptops + tablets, Win 1809 update if Firefox is default browser
  ** https://bugzilla.mozilla.org/show_bug.cgi?id=1527658 About:performance page is broken, causes a hang

Special Topics

Aurora/Beta Feature Review

Post-Mortem (Tues 2wks from GA Release)