Firefox/Channels/Meetings/2026-09-03

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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

Dsmith, Mira, pascalc, acristea, RyanVM, dmeehan, mchiorean, jgibbs, tzsoldos, Aryx, dveditz, epopescu

Schedule Update

• 155
  • Desktop 155.0 and Android Fenix/Focus 155.0 live @ 25% rollout
    • Unthrottling blocked on at least https://bugzilla.mozilla.org/show_bug.cgi?id=2011747 right now, but also looking at reports of blurry video playback on macOS (https://bugzilla.mozilla.org/show_bug.cgi?id=2057759)
  • Desktop and Android planned dot release scheduled for next week
    • gtb on 2026-09-07, go-live on 2026-09-08 after QA sign-off
  • Firefox iOS 155.1 scheduled to start phased rollout at 03:00 UTC on 2026-09-06
• 156
  • Desktop/Android 156.0b2 live @ 100%
  • Desktop 156.0b3 gtb tomorrow @ 100% rollout
  • Android 156.0b3 gtb tomorrow @ 99% rollout
    • Bumping to 100% pending QA sign-off
  • The deadline for Release Notes is 2026-09-10
  • Desktop/Android 156 Release Candidate builds on Sep 10, 2026
  • Firefox iOS 156.0 branches and Firefox iOS 156.0 gtb tomorrow
• 157
  • New cycle has started for Fx157
  • Merge Day and 157.0b1 build1 gtb 2026-09-10

Release Quality Metrics

• https://bugdash.moz.tools/#tab.beta

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 1.64% (-0.30pp - last Sunday compared to two weeks ago because Monday and Tuesday were affected by a crash spike)

Beta

crash incidence: 2.08% (-0.27pp compared to two weeks ago)

Release

crash incidence: 1.07% (-0.02pp)

Mobile Stability

Nightly

• Crash in [@ org.mozilla.experiments.nimbus.internal.InternalException: at org.mozilla.experiments.nimbus.internal.NimbusKt.uniffiCheckCallStatus(nimbus.kt:46)]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2068893
  • triage owner needinfoed

QA

Nightly

• Recurring testing
  • Nightly 157 WebRTC testing started today.
• New feature testing
  • Nightly 157 new feature testing started today.
  • Nova features - bug verification - in progress

Beta

• Recurring testing
  • Beta 156 antivirus testing - completed
• New feature testing
  • Uplift verification for Beta 156 new features is in progress.

Mobile

• Android / Mira
  • Build Signoffs Fenix & Focus
    • Beta 156.0b1 build 1 - sign-off status GREEN
    • Beta 156.0b1 build 2 - sign-off status GREEN
    • Beta 156.0b2 - sign-off for FOCUS is GREEN, for FENIX will be sent by EOD, but no concerns so far
  • Feature Testing
    • [QA-5678] Android Top-sites: Show More expand/collapse - Test Cases creation - in progress

• iOS
  • Build Signoffs
    • Firefox iOS 155.1 (76470) - Release Candidate 1 build validation completed - sign-off status GREEN
  • Feature Testing
    • (QA-5674) iOS VPN Prototype Smoke testing - in progress
    • (QA-5643) iOS 27 Regression Testing - in progress

Roundtable & Special Topics

• Monday 2026-09-07 is a public holiday in the US/CA