Meeting 2025-04-01

• Team calendar

  • Next on Necko triage: Kershaw

• New contributors / Friends of Necko – Thank you!

  •  Jishnu Murali Thampan

    • Bug: 1828113 about:neterror - No strings exist for error: corruptedContentErrorv2

    • Bug: 1947594 Remove nsChannelClassifier::SetBlockedContent

  •  Andrea Marchesini [:baku]

    • Bug: 1947894 Implement CookieStoreManager

  •  Ngo Fong

    • Bug: 1953748 available comment typo

• Round Table

  • – enter topics –

• Active Projects roadmap Fx137 rel Apr 01, Fx138 code freeze Mar 27

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

    • – enter updates –

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

    • – enter updates –

  • 3rd Party Cookie Deprecation (in progress, target TBD)

    • CHIPS approved by leadership for slow rollout

    • 3PCD still will be pending chrome implementation

      • To risky, let chrome lead 

      • Tim/Ben to make call when 

  • Firefox/Chrome benchmark test suite (in progress, Apr 11)

    • [kershaw]

      • Collecting data and writing a report to wrap things up.

  • necko-glean: (sekim) Landing glean patches using #ifndef ANDROID blocks tracking such blocks using Bug 1901798  

    • – enter updates –

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

    • Rollout on Beta

    • 1 - 2 % rollout on release is next

  • Http3 upload speed

    • PR_POLL_WRITE patch merged.

    • 0RTT pull request in review

    • Perf win!

      • Celebrate now Windows 15%

      • Do we have exp data

      • #perf-wins

  • QUIC stream receive window auto-tuning

    • Implementation merged

    • Will be included in upcoming Neqo v0.13

  • Implement WebTransport based on HTTP/2 ()

    • (sekim) Implement SETTINGS_WEBTRANSPORT_MAX_SESSIONS is still WIP.

    • [kershaw]

      • Implementing flow control for sending data.

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

    • Slow progress, still writing C++/rust glue code

  • Support Compression Dictionary Transport (in progress, TBD)

    • [oskar] Randell onboarded me to the project last week, getting up to speed now after finishing some other work, will work on writing tests and reviewing existing wpt

    • Working on storing/restoring dictionary data

    • Running 2-3 weeks ahead of schedule (for now)

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

    • Collecting bugs

  • Firefox Access Neutralization (FAN) (planning, TBD)

    • [sunil] Re-scoped project Proposal

    • (greg) Dan has reviewed, any major concerns?

    • – enter updates –

  • NEL

    • – enter updates –

  • Performance work: 

    • DNS Cache Expiry:

      • [oskar]

      • Landed telemetry (new + fixes)

        • https://bugzilla.mozilla.org/show_bug.cgi?id=1952221

        • https://bugzilla.mozilla.org/show_bug.cgi?id=1954708 

      • With that follow up experiment for increasing the grace period is ready to be launched and currently in review by the experimenter team!

        • Experiment Brief - DNS caching experiment followup (grace period)

        • https://experimenter.services.mozilla.com/nimbus/dns-caching-exp-grace-period/summary

      • – enter updates –

    • FYI - Fenix Applink Startup bugs

      • [acreskey] 

        • Prototyped this one, no measured improvements yet

          • Bug 1956356 -  Fenix - create a speculative connection to the app link host

          • (Now trying with the event at a higher priority)

        • Disabled connectivity service, no measured improvements yet

          • Bug 1956081 - Fenix applink load appears to wait on Network Connectivity Service's initial checks, introducing additional latency on slower networks

      • Markus:

        • Delays due to network requests ping-ponging through parent process main thread:

          • Delays geckoview.xhtml (to be filed)

          • Delays applink request https://bugzilla.mozilla.org/show_bug.cgi?id=1956964

          • Delays applink response https://bugzilla.mozilla.org/show_bug.cgi?id=1956967 

        • URL classifier startup being slow https://bugzilla.mozilla.org/show_bug.cgi?id=1956920