Firefox/Channels/Meetings/2020-02-13

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, jcristau, csasca, vlucaci, cionce, philipp, ccomorasu, mlobontiuroman, atrif, drus, tbabos, sdeiac, ebalazs, asoncutean, lapahidean,taniam, mberlinger, Aryx, btot

Schedule Update

• 73.0 updates will remain throttled at 0% until 73.0.1 is ready
  • 73.0.1 gtb hopefully Monday, aiming to ship Tuesday

• 74.0b2 shipped yesterday at 50%
  • automated betas had not been re-enabled so gtb was manual
  • further delayed by issues related to gcp switch
• 74.0b3 gtb today, will ship at 100% to all channels

• Monday 17-Feb is US & Canada Holiday

Release metrics

Report on release criteria metrics from DRIs

• Stability
• Performance
• Security
• Functionality

Desktop Stability

Nightly

mc2 crash rate: 1.37, crash incidence: 1.82%, mc1 summary score: 5.06 tuesday mc2 crash rate: 1.61, crash incidence: 1.82%, mc1 summary score: 12.17

• https://bugzilla.mozilla.org/1589800 - Hit MOZ_CRASH(assertion failed: child_index.0 >= parent_index.0) at gfx/wr/webrender/src/clip_scroll_tree.rs:260 being investigated, spiked on Nightly recently
• https://bugzilla.mozilla.org/1614259 - Still an important crasher in Nightly and Beta
  • escalated in the bug and slack
  • (with MOZ_DIAGNOSTIC_ASSERT it should 'only' affect devedition)
• https://bugzilla.mozilla.org/1612894 we have more crashes post fix than before, reopen?

Beta

mc2 crash rate: 1.73, crash incidence: 1.73%, mc1 summary score: 6.20 tuesday mc2 crash rate: 1.60, crash incidence: 1.11%, mc1 summary score: 33.96

[74.0b2]

• no crashing issues apparent so far that would need to holdup the rollout to 100% of users
• SW-e10s [@ AsyncShutdownTimeout | ... | ServiceWorkerShutdownBlocker: shutting down Service Workers]: https://bugzilla.mozilla.org/show_bug.cgi?id=1588152 - 1.6% of browser crashes
• some low volume signatures that have been fixed in past cycles are reappearing:
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1603976
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1607574
    • will file new bugs over the coming days

Release

mc2 crash rate: 1.26, crash incidence: 1.17%, mc1 summary score: 9.93 (bad score mainly due to linux) tuesday mc2 crash rate: 1.36, crash indicence: 1.05%, mc1 summary score: 18.52

[73.0]

• 0patch startup crash: https://bugzilla.mozilla.org/show_bug.cgi?id=1604008 - 23% of browser crashes
• gtk startup crash: https://bugzilla.mozilla.org/show_bug.cgi?id=1613130 - 13% of browser crashes

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

QA

[mboldan]

• Testing for PI-486 -https://jira.mozilla.com/browse/PI-486 - Completed
  • QA report: https://docs.google.com/document/d/1ZBcmuaS8tTv7owgf1edNxQbAyfVom-9tCWpFSGzNGsA/edit#

Nightly

Aurora / Dev Edition

Beta

[mboldan]

• Round 1/3 Beta regression testing - in progress

Mobile

[ajoltan]

• Firefox 68.5.0 RC Build 2 - status GREEN
• Firefox 68.6b1 Build 2 - status GREEN
• Fennec Nightly Migration Build 8 - status GREEN
• Mobile Web Extensions feature Nightly 74 - status YELLOW

Action items

User Advocacy/ SUMO Report

• megabar landing in 74.0b getting some critical/negative reception

Roundtable & Special Topics

Post-Mortem (Tues 2wks from GA Release)

• 72 & 73 PM 25-Feb (tentative)