Firefox/Channels/Meetings/2026-05-28

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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

dmeehan, RyanVM, abodea, Mira, acristea, csasca, mboldan, jgibbs, mchiorean, tzsoldos, dveditz, btot, dsmith

Schedule Update

• 151
  • Desktop 151.0.2 and Android Fenix/Focus 151.0.2 planned release live @ 100% rollout
  • There is currently no driver for an unplanned Desktop/Android dot release
  • Desktop/Android planned dot release scheduled for next week
    • gtb on 2026-06-01, go-live on 2026-06-02 after QA sign-off
  • Firefox iOS 151.2 RC3 scheduled to start phased rollout at 03:00 UTC on 2026-05-31
  • Firefox iOS 151.3 branches and Firefox iOS 151.3 gtb tomorrow
• 152
  • Desktop 152.0b5 gtb tomorrow @ 100% rollout
    • This is the final Early Beta build of the cycle
  • Android 152.0b5 gtb tomorrow @ 99% rollout
    • Bumping to 100% pending QA sign-off
  • Next week is the last full week of Fx152 beta
• 153
  • No updates.

Release Quality Metrics

• https://bugdash.moz.tools/#tab.beta
  • Another (smaller) wave of Clauditor bugs came in recently. Expecting uplift volume to increase from where it had been so far this cycle.

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 4.33% (+1.24pp compared to previous week) - driven by frequent crash on Tuesday

Beta

crash incidence: 2.27% (+0.12pp)

• Crash in [@ shutdownhang | mozilla::scache::StartupCache::GetBuffer]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2037923
  • 50-100 crashes/beta
  • unassigned, severity S3

Release

crash incidence: 1.24% (+0.20pp) - likely driven by fontconfig crash which is fixed but not shipped in Firefox 151 and also handled upstream https://bugzilla.mozilla.org/show_bug.cgi?id=2041887

Mobile Stability

• tab crash [@ mozilla::extensions::StreamFilterParent::Init ]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=1673749
  • Rob Wu investigates, likely high probability with certain add-on installed

QA

• Release 151 World Cup web compat testing in progress.

Nightly

• WebRTC testing round in progress. No concerns.

Beta

• Beta new feature pre-release testing is in progress. Reports will be sent until next week, June 3rd.
• 2nd round of functional testing is in progress. No concerns.
• Beta antivirus testing in progress. No concerns.

Mobile

• Android [Mira]
  • Build Signoffs Fenix & Focus
    • Beta 152.0b2 - status GREEN
    • Beta 152.0b3 - status GREEN
    • Beta 152.0b4 - status GREEN
    • dot release 152.0.2 - status GREEN
  • Feature Testing
    • [QA-5139] Android World Cup - Milestone 2 - Beta 152 - testing in progress
    • [QA-5125] Testing Media Capabilities DOM API improvements - Beta 152 - sign-off status GREEN
    • [QA-5133] Search Optimization - Sports - Beta 152 testing will start soon
    • [QA-5242] Native share sheet Android - TC sent for review
    • [QA-5256] LongFox Micro-game - TC writing is in progress
• iOS
  • Build Signoffs
    • Firefox iOS v151.2 (72304) RC1 - status RED
    • Firefox iOS v151.2 (72455) RC2 - status GREEN
  • Feature Testing
    • [QA-5138] iOS - World Cup Feature - Milestone 3 - testing started
    • [QA-5270] Add Categories to Feed iOS - not started
    • [QA-5267] HTTPS first on iOS - not started
    • [QA-5288] Verify randomization of microsurvey - not started

Roundtable & Special Topics

• Is there information on testing from treeherder build artifacts in QA onboarding?
• June 1st RO teams will be out due to national holiday
• Mozilla Wellness Day on June 5th