Firefox/Channels/Meetings/2026-03-19

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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, pascalc, abodea, ljanos, jgibbs, Aryx, mboldan, ailea, RyanVM

Schedule Update

• 148
  • No dot release on the radar before Fx149 go-live
• 149
  • Desktop & Android 149.0b10 live on beta @ 100% rollout
  • Desktop & Android 149 RC1 ready and QAed
    • Android Fenix/Focus 149.0 at 5% rollout on Play Store
  • ESR 140.9 / 115.34 pending release
  • iOS Firefox 149.0 scheduled to start phased rollout at 02:00 UTC on 2026-03-22
  • Firefox iOS 149.1 branches and Firefox iOS 149.1 gtb tomorrow
  • Next week is Fx149 go-live on 2026-03-24
• 150
  • String freeze starts tomorrow
  • Merge Day and 150.0b1 build1 gtb next week on Monday 2026-03-23

Release Quality Metrics

• https://bugdash.moz.tools/#tab.beta

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 2.66% (+0.13pp compared to previous week)

Beta

crash incidence: 1.80% (+0.15pp)

Release

crash incidence: 1.00% (-0.01pp)

Mobile Stability

• Crash in [@ IPCError-browser | ProcessShowEvent unknown parent accessible]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2024633
  • Bug for the triage meeting?
• [nightly] Assertion failure: mEvent == mNavigation->mOngoingNavigateEvent, at /builds/worker/checkouts/gecko/dom/navigation/Navigation.cpp:733
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2024044
  • The reported crashes are from users verifying the assertion
• [release] Android 16 Pixel devices [@ libc.so | <.plt ELF section in libmozglue.so> | libart.so | _JNIEnv::CallVoidMethodA | mozilla::jni::Method<T>::Call<T>]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2023515
  • developer assigned

QA

• RC1 149.0 build validation testing - completed - GREEN status

Nightly

• Recurring testing
  • Nightly pre-merge smoke testing → On track, no new bugs so far
  • Nightly regression search testing → On track, no new bugs so far

Mobile

• Android
  • Build Signoffs Fenix & Focus
    • Beta 149.0b8 build 1 - status GREEN
    • Beta 149.0b9 build 1 - status GREEN
    • Beta 149.0b10 build 1 - status GREEN
    • RC 149.0 - status GREEN

• • Feature Testing
    • [QA-4655] Android Relay phase 1 - testing in Nightly 150.0a1 - status GREEN
    • [QA-4981] Edge to Edge Wallpaper - Beta 149 done - status GREEN
    • [QA-4979] [Fenix] Homepage Rust Ads Client integration for Sponsored Top Sites - Nightly 150 testing in progress

• iOS
  • Build Signoffs
    • Firefox iOS v149.0 (69085) RC1 - Sign-off GREEN
    • Focus iOS 149 (69102) RC1 - Sign-off GREEN

• • Feature Testing
    • [QA-4982] SnapKit removal in BrowserViewController - testing in progress
    • [QA-4916] Shake To Summarize - Phase 2 - results sent
    • [QA-4979] Tab selection refactor related to reloading - created
    • [QA-4917] iOS Translations - Test Other Languages in Nightly - not started