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Channel Meeting Details

Video/Teleconference Details

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.


RyanVM, taniam, abodea, jcristau, ajoltan, drus, atrif, vlucaci, obotisan,cfogel, mberlinger, avaida, sdeiac, ccomorasu, pascal, mboldan, tbabos, csasca, lapahidean, asoncutean, ebalazs, roland, Aryx, prasa,

Schedule Update

  • 75.0b7 shipped Monday
  • 75.0b8 shipped Wednesday
    • uncovered partner repack bustage, fixed in b9
  • 75.0b9 shipped today
    • unscheduled build to fix a gfx issue
  • 75.0b10 ships tomorrow
    • last build before monday's merge and 75 rc1
    • includes windows default browser agent
  • fennec beta migration to fenix about to start
  • sticking with the published release schedule for the moment
    • expect feature development to slow down though
    • reviewing planned features for breaking potential, and delaying some changes

Release Metrics

Report on release criteria metrics

  • Stability
  • Performance
  • Security
  • Functionality
  • Accessibility

Reported at yesterday's cross functional

Desktop Stability


mc2 crash rate: 1.67, crash incidence: 2.09%, mc1 summary score: 5.65 last thursday mc2 crash rate: 1.80, crash incidence: 2.12%, mc1 summary score: 5.93

  • Work underway in bug 1624949 to throttle ShutDownKill reports so they're not dominating Nightly content crashes
  • 3 high-volume WebRender crashes:
    • Bug 1624250: [@ core::option::expect_failed | webrender::scene_building::NodeIdToIndexMapper::get_spatial_node_index]
    • Bug 1624125: [@ InvalidArrayIndex_CRASH | mozilla::layers::DisplayItemCache::MarkSlotOccupied ] (may fix bug 1624250 also)
    • Bug 1624881: [@ webrender::spatial_tree::SpatialTree::get_relative_transform]
  • High-volume ShutDownKill crashes (will still show up high with throttling in place):
    • Bug 1614305: [@ IPCError-browser | ShutDownKill | NtYieldExecution]
    • Bug 1613798: [@ IPCError-browser | ShutDownKill | nsThread::Shutdown | mozilla::ChildProfilerController::ShutdownAndMaybeGrabShutdownProfileFirst]
    • Bug 1613797: [@ IPCError-browser | ShutDownKill | hashglobe::hash_map::HashMap<T>::clear<T>]
    • Bug 1614564: [@ IPCError-browser | ShutDownKill | EMPTY: no crashing thread identified; ERROR_NO_MINIDUMP_HEADER]
  • Bug 1624886: [@ js::wasm::WasmFrameIter::instance]


mc2 crash rate: 1.55, crash incidence: 1.56%, mc1 summary score: 3.81 last thursday mc2 crash rate: 1.86, crash incidence: 1.51%, mc1 summary score: 4.29

  • 75.0b8 data looking good, nothing in particular to call out
  • 75.0b9 gets rid of the diagnostic assert that was plaguing devedition


mc2 crash rate: 1.30, crash incidence: 1.16%, mc1 summary score: 2.57 last thursday mc2 crash rate: 1.30, crash incidence: 1.17%, mc1 summary score: 2.96

Mobile Stability


  • Crash rate is calculated based on usage hours (the time Firefox is actively used).
  • Usage hours will be significantly lower on Fennec than on desktop Firefox, so we can't compare mobile rates to desktop rates.





  • Nightly feature status reports - In progress, due 31 Mar

Aurora / Dev Edition



  • Beta feature pre-release sign offs are - In progress, due 27 Mar


[Laurentiu] Firefox Preview Beta 4.2.0-beta2 - signed off with status [YELLOW] Fennec Beta Migration Build (75.0.0-beta.2) signed off with status [YELLOW]

Action items

User Advocacy / SUMO Report

  • [roland] no update, did a quick scan of march 25 and 26 no new issues

Roundtable & Special Topics

[Tania] Upcoming holidays for Argentina QA - Mar 30, 31, Apr 2

Post-Mortem (Tues 2wks from GA Release)

  • Fx74 next Tuesday?