Firefox/Channels/Meetings/2026-04-02

« previous week | index | next week »

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

Abodea, pascalc,dsmith, btot, dveditz, jgibbs, acristea, atrif, csasca, apetridean, epopescu

Schedule Update

• 149
  • Android Fenix/Focus 149.0.1 planned release live @ 100% rollout
  • Desktop/Android planned dot release scheduled for next week with associated esr 115/140 dot releases
    • gtb hopefully EOD CET on 2026-04-03, go-live on 2026-04-07 after QA sign-off
  • Firefox iOS 149.2 scheduled to start phased rollout at 03:00 UTC on 2026-04-05
  • Firefox iOS 149.3 branches and Firefox iOS 149.3 gtb tomorrow
• 150
  • Desktop 150.0b5 gtb tomorrow @ 100% rollout
    • This is the final Early Beta build of the cycle
  • Android 150.0b5 gtb tomorrow @ 99% rollout
    • Bumping to 100% pending QA sign-off
  • Next week is the last full week of Fx150 beta
• 151
  • no updates

Release Quality Metrics

• https://bugdash.moz.tools/#tab.beta

Desktop Stability

Nightly

crash incidence (% of users experiencing a crash): 3.40% (+0.80pp compared to previous week) - increase from https://bugzilla.mozilla.org/show_bug.cgi?id=2027756 which is fixed now

Beta

crash incidence: 2.30% (+0.54pp)

• [@ mozilla::dom::NavigationWaitForAllScope::CommitNavigateEventSuccessSteps | mozilla::dom::Navigation::RunNavigateEventHandlerSteps::<T>::operator()]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2024044
  • fixed on autoland
  • we have a patch
• Crash in [@ mozilla::TextEditor::GetTextNode]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2028086
  • has patch
• high frequency macOS Crash in [@ shutdownhang | mozilla::net::CookiePersistentStorage::EnsureInitialized]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2019599
  • has patch, developer on PTO

Release

crash incidence: 0.98% (-0.01pp)

• startup [Ubuntu 22.04.5 LTS Nvidia] Crash in [@ _dlerror_run]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2028081
  • in triage queue
  • not official builds but specific to Nvidia driver version 390.157
• Crash in [@ mozilla::Maybe<T>::ref | mozilla::URLQueryStringStripper::ShouldStripParam]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2028082
  • has patch
• medium frequency Crash in [@ stackoverflow | style::values::specified::calc::impl$10::parse::closure$0::closure$3]
  • https://bugzilla.mozilla.org/show_bug.cgi?id=2028900
  • triage owner needinfoed
• [@ `anonymous-namespace'::_Finding::_Find_traits_2::_Cmp_avx]
  • no bug filed because caused by Ryzen CPU bug
  • https://crash-stats.mozilla.org/signature/?product=Firefox&signature=%60anonymous-namespace%27%3A%3A_Finding%3A%3A_Find_traits_2%3A%3A_Cmp_avx&date=%3E%3D2025-12-31T09%3A34%3A00.000Z&date=%3C2026-03-31T09%3A34%3A00.000Z&_columns=date&_columns=product&_columns=version&_columns=build_id&_columns=platform&_columns=reason&_columns=address&_columns=install_time&_columns=startup_crash&_columns=cpu_info&_sort=-date&page=1#summary
• [@ JSClass::getAddProperty]
  • no bug filed because caused by overclocked Raptor CPUs
  • https://crash-stats.mozilla.org/signature/?product=Firefox&signature=JSClass%3A%3AgetAddProperty&date=%3E%3D2025-12-31T09%3A43%3A00.000Z&date=%3C2026-03-31T09%3A43%3A00.000Z&_columns=date&_columns=product&_columns=version&_columns=build_id&_columns=platform&_columns=reason&_columns=address&_columns=install_time&_columns=startup_crash&_columns=cpu_info&_sort=-date&page=5#summary

Mobile Stability

Nightly =

• Recurring testing
  • WebRTC testing - completed on desktop side - No concerns.
  • Top site web compatibility testing → Completed, GREEN status

Aurora/Dev Ed ==

• Recurring testing
  • DevEdition functional testing → Completed - GREEN status

Beta

• Recurring testing
  • Functional testing - On track, no new bugs so far
  • Antivirus testing - Completed - GREEN status

• New feature testing
  • Pre-Release feature testing started → reports to be sent by next week (Apr 8th EOD)

Mobile

• Android
  • Build Signoffs
    • Beta 150.0b2 build 1 - status GREEN
    • Beta 150.0b3 build 1 - status GREEN
    • Beta 150.0b4 build 1 - status GREEN
    • Dot release 149.0.1 - status GREEN
  • Feature Testing
    • • • • [QA-5038] [Android HNT Stories & Privacy Buttons V1] Test Plan & Test Cases creation- Completed; Beta testing 150 will start as soon as possible
    • [QA-4471] [Local Network Access Functionality] Nightly Fx151 - sign-off with status GREEN
    • [QA-4981] [Edge to Edge Wallpaper] Nightly Fx151 - sign-off with status GREEN
    • [QA-4935] Android Shake to Summarize - test cases creation – Completed; Nightly testing151 will start as soon as possible
    • [QA-4980] [Android 17 Beta 2] Compatibility testing - Completed on Fenix Nightly 150 - 151
    • [QA-5021] Android Tab Groups - test cases creation in progress

• iOS
  • Build Signoffs
    • Firefox iOS v149.2 (69774) - Status GREEN
  • Feature Testing
    • [QA-4979] Tab selection refactor related to reloading - test results sent
    • [QA-4982] SnapKit removal in BrowserViewController - test results sent
    • [QA-4958] iOS Translations - New UI to support language extensions - testing in progress

Roundtable & Special Topics

• QA team members located in Romania will be on Easter holiday next Friday (April 10th) and the Monday right after (April 13th)
• Pascal on Easter holiday next Monday (April 6)