Firefox/Channels/Meetings/2026-07-23

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Channel Meeting Details

• Tuesdays at 10am and Thursdays at 7:30am 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

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

dmeehan, dsmith, pascalc, ljanos, Aryx, abodea, phorea, btot, snegritas, tzsoldos, dveditz

Schedule Update

• 153
  • Desktop 153.0 is live @ 25% rollout due to a desktop startup crash on some upgrades that we are watching
    • Android 153.0 goes to 100% rollout today
    • A potential fix for the crash might be to ship an unplanned, no-op, desktop dot release, an option being discussed
  • Desktop and Android planned dot release scheduled for next week
    • gtb on 2026-07-27, go-live on 2026-07-28 after QA sign-off
  • Firefox iOS 153.1 scheduled to start phased rollout at 03:00 UTC on 2026-07-26
  • Firefox iOS 153.2 branches and Firefox iOS 153.2 gtb tomorrow
• 154
  • Desktop/Android 154.0b1 live @ 50%
  • Desktop 154.0b2 gtb tomorrow @ 100% rollout
  • Android 154.0b2 gtb tomorrow @ 99% rollout
    • Bumping to 100% pending QA sign-off
• 155
  • New cycle has started for Fx155
  • https://whattrainisitnow.com/release/?version=155
    • Fx155 is a transition release as we move to two-week release cycles
    • 4 weeks in Nightly -> 2 weeks in Beta -> 2 weeks in Release

Release quality metrics (Thursdays)

https://bugdash.moz.tools/#tab.beta

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 2.26% (-0.20pp compared to previous week)

Beta

crash incidence: 1.86% (+0.13pp)

Release

crash incidence: 1.07% (-0.07pp)

• startup Crash in [@ (anonymous namespace)::ChildImpl::ThreadInfoWrapper::InitStarter]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2056660
  • might be same as top crasher Startup Crash in [@ mozilla::ErrorLoadingSheet] https://bugzilla.mozilla.org/show_bug.cgi?id=2056660

Mobile Stability

Fenix

• Crash in [@ java.lang.IllegalArgumentException: at androidx.compose.ui.text.internal.InlineClassHelperKt.throwIllegalArgumentException(InlineClassHelper.kt:3)]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2056836
  • fixedon autoland

QA

Nightly

• New feature testing
  • Testing on Nova features (that have landed) started, reports on Nightly 155 to be sent until next week, July 31st EOD.

Beta

• Recurring testing
  • Smoke testing - in progress, no major issues found so far
  • Functional testing (1 of 3) - in progress, no concerns so far
  • Top sites web compatibility testing - completed - GREEN status. No concerns.
• New feature testing
  • New feature preliminary testing started today. Reports will be sent until next week, July 29th

• Android
  • Build Signoffs Fenix & Focus
    • Beta 154.0b1 build 1 - status GREEN
    • Beta 154.0b1 build 2 - status GREEN

** Feature Testing 

• • • [QA-5341] Redesign on webcompat reporter - Nightly 154 sign-off status (Yellow)

• iOS
  • Build Signoffs
    • Firefox iOS 153.1 (74582) Release Candidate 1 build - status [GREEN]

• • Feature Testing
    • [QA-5329] - iOS - Google Lens Feature - testing in progress
    • [QA-5364] - iOS - AdBlockers - testing finished