Firefox/Channels/Meetings/2020-02-04

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Channel Meeting Details

• Tuesdays at 10am and Thursdays at 8am Pacific Time
• irc.mozilla.org #planning for backchannel
• Past meeting notes: https://wiki.mozilla.org/Firefox/Channels/Meetings

Video/Teleconference Details - NEW Zoom Meeting ID: 969-234-8045 +17207072699,,9692348045# 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

jcristau, ryanvm, pascal, overholt, telin, kbrosnan, Aryx, dbolter

Schedule Update

• 73.0b12 didn't ship due to MDC1 outage

• 73 rc1 at 100% on beta
• fennec 68.5rc1 at 5% on play store release

• some candidates for a rc2 but no driver so far

• merge day next Monday, pascal on the hook for 74

• 73 release notes draft due tomorrow

Release metrics

Report on release criteria metrics from DRIs

• Stability
• Performance
• Security
• Functionality

Off-train releases

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

Stability

Nightly

Firefox nightly summary score: 5.43 (= √3(5.70 windows * 3.99 mac * 7.05 linux))

• windows (content_crashes: 2.25 / main_crashes: 3.8)
• mac (content_crashes: 1.3 / main_crashes: 1.87)
• linux (content_crashes: 3.11 / main_crashes: 4.33)

Top crashes:

• https://bugzilla.mozilla.org/show_bug.cgi?id=1611764 (assigned)
• https://bugzilla.mozilla.org/show_bug.cgi?id=1589800 Hit MOZ_CRASH(assertion failed: child_index.0 >= parent_index.0) at gfx/wr/webrender/src/clip_scroll_tree.rs:260 (module owner pinged)
• https://bugzilla.mozilla.org/show_bug.cgi?id=1577507 Crash in [@ nsAppShellInit] (stalled, who could we ping?)
  • Andrew Overholt asked gcp to see if spohl has time.Maybe ping JimM as well? done

We have caught up on nightly crash triage https://wiki.mozilla.org/NightlyCrashTriage/2020Q1 any help welcome

Beta

Firefox beta summary score: 3.52 (= √3(4.87 windows * 1.56 mac * 5.73 linux))

• windows (content_crashes: 2.04 / main_crashes: 0)
• mac (content_crashes: 0 / main_crashes: 0)
• linux (content_crashes: 2.33 / main_crashes: 3.41)

Top crashes:

• #1 https://bugzilla.mozilla.org/show_bug.cgi?id=1611588 (fixed in RC1)
  • DocumentChannel disabling was effective at eliminating other topcrashes as expected
• Nothing else stands out

Release

Firefox release summary score: 2.31 (= √3(2.75 windows * 1.23 mac * 3.64 linux))

• windows (content_crashes: 1.53 / main_crashes: 1.6)
• mac (content_crashes: 0.83 / main_crashes: 0.63)
• linux (content_crashes: 2.11 / main_crashes: 1.94)

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.

fennec release summary score: 15.34 * android (main_crashes: 11.1)

• fennec to fenix migration ongoing for nightly

• fenix experiment re compiler flags (3.2.0 vs 3.2.1)

• struggling to monitor mobile stability in the past few weeks due to staffing changes, need to find a longer-term owner for this

Roundtable

• Please add updates to the cross functional slides for read-only update