Firefox/Channels/Meetings/2019-09-17

Channel Meeting Details

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

Video/Teleconference Details

• Zoom Meeting ID: 266 532 573
• https://mozilla.zoom.us/j/266532573
• +17207072699,,266532573# 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

• RyanVM, vchin, Aryx, philipp, telin, Andrew, Ritu, Marcia, Tania, pascal

Schedule Update

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

• Desktop 69.0.1 gtb today

• Desktop 70.0b7 shipping Really Soon Now

• Fennec 68.2b3 shipped today

Release metrics

Report on release criteria metrics from DRIs

https://docs.google.com/spreadsheets/d/1a0f8cDojanXaT44ATyK1KpK0OGcoI2eRIas4Mjk_C8Y/edit#gid=1956837358

Weekly snapshot of 09-17 is in the "Release criteria metrics" tab

• Stability
• Performance

Performance Bugs tagged with [qf:tracking70] down to 3 this week: https://mzl.la/2HWtb3G All other release criteria remain green. https://sql.telemetry.mozilla.org/dashboard/desktop-performance-release-criteria?p_Project_64810=mozilla-beta&p_Platform_64423=windows10-64-shippable

• Security
• DVeditz and I reviewed Firefox 70 trello cards and were able to count at least 4 features that have had a security review
• Functionality

Off-train releases

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

Stability

• Gabriele is working on improved crash reports for Ubuntu/Debian. This should help with investigation of some Linux spikes.

Nightly

• firefox nightly summary score: 3.52, Thursday 3.09
• https://metrics.mozilla.com/~sguha/mz/missioncontrol/ex1/visual_demo/_site/nightly.html#summary shows a change in Linux and macOS crash rates
• Core | Graphics crash https://bugzilla.mozilla.org/show_bug.cgi?id=1581466 had a 2 day spike, fixed by backout
• #4 overall crash https://bugzilla.mozilla.org/show_bug.cgi?id=1580690 - more crashes than installs
• #5 Core Graphics Layers crash is happening regularly in each nightly build - https://bugzilla.mozilla.org/show_bug.cgi?id=1573569
• Latest nightly crash triage - https://wiki.mozilla.org/NightlyCrashTriage/2019Q3

Beta

firefox beta summary score: 3.11, Thursday 3.58

• https://bugzilla.mozilla.org/show_bug.cgi?id=1581548 has a large spike in b6 but is on the road to getting fixed
• DOM | Web storage crash https://bugzilla.mozilla.org/show_bug.cgi?id=1541928 is #10 overall in b6. Work ongoing
• Another DOM | Web storage crash https://bugzilla.mozilla.org/show_bug.cgi?id=1566896 has a recent ni and needs more investigation

Release

firefox release summary score: 2.29, Thursday 2.60

[69.0]

• share of linux users with browser crashes doubled in 69 - probably attributable to https://bugzilla.mozilla.org/show_bug.cgi?id=1581121
• Tab crashes in [@ XULContentSinkImpl::Release ] (tied to office365): https://bugzilla.mozilla.org/show_bug.cgi?id=1579858 - 1.6% of content crashes
  • has a potential patch
• Tab crashes in nsGlobalWindowInner::ClearDocumentDependentSlots: https://bugzilla.mozilla.org/show_bug.cgi?id=1573464 - 0.4% of content crashes
• Tab crashes in [@ InvalidArrayIndex_CRASH | mozilla::TrackBuffersManager::DoEvictData ]: https://bugzilla.mozilla.org/show_bug.cgi?id=1578143 - 0.4% of content crashes
  • mostly tied to a particular spanish website

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.

Nightly

fennec nightly summary score: 78.21, Thursday 79.46

• https://bugzilla.mozilla.org/show_bug.cgi?id=1527243 is the top crash on nightly. Been around for 7 months
• Core | Graphics crash https://bugzilla.mozilla.org/show_bug.cgi?id=1532456 is rising slightly

Beta

fennec beta summary score: 54.87, Thursday 55.56

• Nothing specific to highlight for beta

Release

fennec release summary score: 19.15, Thursday 19.35

• Almost 12K crash in top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1579222. No activity in 11 days
  • overholt asked Neha to chat with kmag about it
• SprintLiteral crash https://bugzilla.mozilla.org/show_bug.cgi?id=1461724 continues to be #2 overall
• Top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1525290 now has a fix

Fenix/Firefox Preview

• https://bugzilla.mozilla.org/show_bug.cgi?id=1557449 continues as the top crash in the latest 1.4.1 release
• #2 overall top crash https://bugzilla.mozilla.org/show_bug.cgi?id=1577192
• #3 overall - Motorola phones crashing https://bugzilla.mozilla.org/show_bug.cgi?id=1374570

Roundtable

• For your reading pleasure https://hacks.mozilla.org/2019/09/moving-firefox-to-a-faster-4-week-release-cycle/

Special Topics

Post-Mortem (Tues 2wks from GA Release)

• Fx69 post-mortem next week: https://pad.mozilla.org/p/69-0-Post-Mortem