Firefox/Channels/Meetings/2020-06-04

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

RyanVM, vlucaci, jcristau, mboldan, pascal, sflorean, atrif, avaida, mlobontiuroman, roland, ajoltan, ccomorasu, phorea, ebalazs, Aryx, taniam, cfogel, bittin

Schedule Update

• 77.0 rollout stopped on Tuesday
• 77.0.1 shipped yesterday at 5%
  • 25 % later today
  • 50% tomorrow
  • 0% over the week end and decision to rollout to more or not on Monday
• Potential 77.0.2 in the next 2 weeks

• 78.0b2 on beta at 50%
• 78.0b3 set to ship at 100% tomorrow
• late-QA-request exception approved for the profile refresh in uninstaller(PI-623)
• late-landing exception request upcoming for extension preferences sync storage

• Fenix Beta 5.3.0 / Firefox Beta 77.0.0-beta.1 live @ 100% on their respective channels

Desktop Stability

Nightly

mc2 crash rate: 1.56, crash incidence: 1.89%, mc1 summary score: 6.69

• Bug 1638389 #2 overall, has patch on autoland
• Bug 1642290 #5 overall (see 78.0b2 below)

Beta

mc2 crash rate: 1.66, crash incidence: 2.23%, mc1 summary score: 10.11

78.0b2

• Crash in [@ shutdownhang | mozilla::DataStorage::WaitForReady | mozilla::DataStorage::GetAll] https://bugzilla.mozilla.org/show_bug.cgi?id=1642290
  • spiking in 78 (and now 79) since the end of last week
  • 13% of browser crashes
• Crash in [@ nsTArray_Impl<T>::AppendElementInternal<T> | mozilla::dom::ContentParent::GetUsedBrowserProcess] https://bugzilla.mozilla.org/show_bug.cgi?id=1641211
  • 5% of browser crashes
• Crash in [@ mozilla::PreallocatedProcessManagerImpl::Init] https://bugzilla.mozilla.org/show_bug.cgi?id=1643342
  • also new from last week, 1.29% of browser crashes

Release

mc2 crash rate: 1.33, crash incidence: 1.07%, mc1 summary score: 5.13 Jit crashes (bug to be filed): https://crash-stop-addon.herokuapp.com/sumup.html?s=js::jit::ValueNumberer::visitBlock https://crash-stop-addon.herokuapp.com/sumup.html?s=js::jit::MConstant::MConstant

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

• Bug 1641040: Crash [@ java.lang.IllegalStateException: at androidx.fragment.app.FragmentManager.ensureExecReady(FragmentManager.java)] #2 overall

QA

[mboldan]

• Bug https://bugzil.la/1642960 - Updates on release channel
• ESR 78.0.0 - Test plan in progress

Nightly

Aurora / Dev Edition

Beta

Mobile

• Fennec Beta Migration Build (5.1.0-beta.3) - status GREEN
• Fenix Beta 5.1.0-beta.3 - status GREEN

Action items

Feature Status Review

SUMO Report

• [roland] nothing to report

Roundtable & Special Topics

• [mboldan] Monday, June 8th, romania team will be off, due to national holiday
• June 19: All Mozilla holiday

Post-Mortem (Tues 2wks from GA Release)