Meeting 2025-05-20

• Team calendar

  • Next on Necko triage: Sunil

• New contributors / Friends of Necko (18) – Thank you!

  • Tim Huang[:timhuang] 

    • Bug: 1965987 Assertion failure: false, at /builds/worker/checkouts/gecko/netwerk/cookie/CookieServiceChild.cpp:319

  • Tom Schuster (MoCo)

    • Bug: 1966621 Use nsContentPolicyType in IPCInternalRequest IPDL 

  • Alexandra Borovova [:Sasha]

    • Bug: 1965610 Perma [tier 2] /fetch/metadata/generated/window-history.https.sub.html | sec-fetch-storage-access - Cross-site - history.forward - Test timed out | single tracking bug

  • Jari Jalkanen [:jari]

    •  Bug: 1966610 Missing close in file generation sometimes causes build failures

• Round Table

  • [acreskey] this meta bug captures the bugs we want to fix on the network side for applink startup

    • [meta] Improve Fenix Network Performance in Applink Scenarios

    • https://bugzilla.mozilla.org/show_bug.cgi?id=1966774

    • If you know of anything that's missing, please let me know

• Active Projects roadmap Fx138 rel Apr 29, Fx139 code freeze April 24

  • Firefox Essential Internal Services Toughening[FEISTY] (in progress, TBD)

    • Currently blocked on https://mozilla-hub.atlassian.net/browse/SVCSE-2456 

      • Chris Valaas is taking over this week with Wei OOO

    • – enter updates –

  • DoH Enablement - Fenix and Focus (in progress, H2-2025)

    • – enter updates –

  • Fast UDP I/O in Firefox (in progress, target Fx137)

    • Rollout on Beta

      • Done

    • – enter updates –

  • Http3 upload speed

    • QUIC UDP IO GSO

      • – enter updates –

  • Implement WebTransport based on HTTP/2 (in progress, Fx140)

    • [kershaw]

      • Encounterered an issue at the test server.

      • Propose to wrap up the project now.

      • Plan a future work to do interop tests before shipping.

  • Interop 2025 - URL Pattern (internal review, Fx141)

    • Still working on URLPattern exec() method

  • Support Compression Dictionary Transport (in progress, Fx141)

    • Solved cross-origin issues

    • Working on hooking up to cache entry maintenance (doomed entries) and clear-site-data.  This should get us close to passing all the WPT tests, though there are things not tested by WPT

  • Improve Fenix Performance in Slow and Transitional Networks (in progress, TBD)

    • – enter updates –

  • Performance work: 

    • [oskar] DNS Cache:

      • Grace period experiment nightly ended

      • https://yardstick.mozilla.org/dashboard/snapshot/SFH0Pt3bnBmbJyjZggM8MncLQaEXar1r

      • Follow up experiment on beta to further de-risk and confirm numbers, planning to start this week

      • Experiment Brief - DNS caching experiment grace period beta

    • [kershaw]

      • H2 upload tests are alive

      • For 300M_40ms, H3 goodput (150Mbps) is better than H2 (133Mbps), so maybe we should consider optimizing necko side.