Firefox/Channels/Meetings/2026-10-15

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Channel Meeting Details

• Thursdays at 7:30am Pacific Time
• 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

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, pascalc, dsmith, dmeehan, Aryx, oardelean, mchiorean, phorea, atrif, ljanos, jgibbs, tzsoldos, btot, mboldan, dbarladeanu, dveditz, epopescu

Schedule Update

• 158
  • Desktop 158.0 and Android Fenix/Focus 158.0 is still at 25%
    • Pending incident investigation and crash investigation
  • Desktop and Android planned dot release scheduled for next week
    • gtb on 2026-10-19, go-live on 2026-10-20 after QA sign-off
  • Firefox iOS 158.1 will start a phased rollout at 03:00 UTC on 2026-10-18
    • pending submission due to intermittent crash
• 159
  • Desktop/Android 159.0b2 live @ 100%
  • Desktop 159.0b3 gtb tomorrow @ 100% rollout
  • Android 159.0b3 gtb tomorrow @ 99% rollout
    • Bumping to 100% pending QA sign-off
  • Uplift volume remains extremely high and isn’t likely to ease up this cycle
  • The deadline for Release Notes is 2026-10-22
  • Desktop/Android 159 Release Candidate builds on Oct 22, 2026
  • Firefox iOS 159.0 branches and Firefox iOS 159.0 gtb tomorrow
• 160
  • New cycle has started for Fx160
  • Merge Day and 160.0b1 build1 gtb 2026-10-22

Release Quality Metrics

• https://bugdash.moz.tools/#tab.beta

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 1.70% (+0.22pp compared to previous week) - back to normal level

• crash [@ ZwWaitForAlertByThreadId]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1817143
  • low volume
  • (dmeehan) I’m looking at this now, seems related to https://bugzilla.mozilla.org/show_bug.cgi?id=1949178

Beta

crash incidence: 2.12% (+0.30pp) - caused by noisy data for Linux

Release

crash incidence: 1.05% (-0.01pp)

• frequent crash in [@ mozilla::a11y::MsaaDocAccessible::GetAccessibleByID]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2082376
  • triage owner and second developer needinfoed
  • might get fixed by pref flip
• Crash in [@ mozilla::dom::WorkerGlobalScope::GetExistingNavigator]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2082387
  • low-medium frequency
  • triage owner needinfoed

Mobile Stability

• Crash in [@ split_config.armeabi_v7a.apk] with Cortex-A53 processor
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2082369
  • high volume
  • not a new signature, partially addressed before
    • should be fixed in nightly

QA

Nightly

• Recurring testing
  • Nightly 160 WebRTC testing started today.
• New feature testing
  • Nightly 160 new feature testing started today.

Beta

• Recurring testing
  • Beta 159 antivirus testing - completed
• New feature testing
  • Uplift verification for Beta 159 new features is in progress.

Mobile

• Android [ljanos]
  • Build Signoffs Fenix & Focus
    • Beta 159.0b1 build 1 - status GREEN
    • Beta 159.0b1 build 2 - status GREEN
    • Beta 159.0b2 - status GREEN
  • Feature Testing
    • [QA-5663] [Sync Accounts Decoupling] Nightly Fx160 testing - in progress

• iOS
  • Build Signoffs
    • Firefox iOS 158.1(78316) - Release Candidate 1 - status [YELLOW]
  • Feature Testing
    • [QA-5860] - iOS - AI Quick Answers - Phase 2 - test results sent, GREEN status

Roundtable & Special Topics

• Mozilla wellness day Friday 2026-10-23
• Update Testing signoffs moving forward will be Tuesday mornings (Romanian time)