Meeting 2025-01-21

• Team calendar

  • Next on Necko triage: Kershaw

• New contributors / Friends of Necko THANK YOU!!

  • Kagami Rosylight [:saschanaz] (they/them)

    • Bug: 1941210 `new Response(new ReadableStream()).text()` can be aborted too soon by cycle collection

  • Tannal2409

    • Bug: 1924340 Remove network.url.strict_data_url_base64_placement pref

  • Andrea Marchesini [:baku]

    • Bug: 1942762 Expose CookieStore.onchange to window globals only

    • Bug: 1942574 Add UseCounter for CookieStore API

    • Bug: 1941527 Enable cookie store API in early beta

    • Bug: 1941769 Cleanup CookieServiceChild

  • Daniel Holbert [:dholbert]

    • Bug: 1941375 Extend test for Idempotency-Key header to be sure we include a layer of quotes

  • John Schanck [:jschanck]

    • Bug: 1941041 Enable mlkem768x25519 in h3 in release 

• Round Table

  • – enter public topics –

• Active Projects roadmap Fx135 rel Feb 04, Fx136 code freeze Jan 30

  • Private Network Access

    • – enter updates – 

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

    • (valentin) Updated patch and up for review.

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

    • (sekim) Implemented Redux layer, planning to add tests later

    • (valentin) posted patch to update exception list 

  • 3rd Party Cookie Deprecation (in progress, target Fx136)

    • Tentative 3PCD/CHIPS rollout, pushed back due to backouts:

      • 136: re-enable chips, ride the trains to release - CHIPS breakage

      • 136+:(pending experiment): 3PCD in all windows in release - 3pcd breakage

      • 136+:(pending all-windows): “Migration”/deletion of TCP cookies (non-chips partitioned)

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

    • [kershaw]

      • XHR approach works great for Firefox. Deviation is around 1% without packet loss. However, this is not the case for Chrome. Need to try another approach.

  • 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 Fx136)

    • Landing in the next beta release. See bugzilla#1939566.

    • Propose to include ECN - yes

  • QUIC stream receive window auto-tuning

    • Implementation ready for review 

  • QUIC Acknowledgement Frequency draft 10

    • Draft pull request https://github.com/mozilla/neqo/pull/2374

    • Mxinden: I think less than 2 weeks, thus no project proposal?!

  • Implement WebTransport based on HTTP/2

    • [kershaw]

      • Does anyone want to help?

      • Bug 1940767 Groundwork for supporting WebTransport over HTTP/2

        • r?

      • Bug 1874099 [ms1] Implement Capsule protocol in HTTP/2

        • WIP

      • Bug 1874101 Implement Http2WebTransportSession

        • WIP

  • NEL

    • (valentin) will do perf try push

    • Fixing known bug and adding privacy cleanup functions.

  • Performance work: 

    • TRR performance issue in progress (root cause identified, working w/ partner)

    • [acreskey]

      • Back to Android performance, hunting

      • Project Plan - Improve Fenix Performance in Slow and Transitional Networks

      • Cold pageload performance on “3G Fast” looks to be significantly slower than Chrome (~15%), early data

        • Live pageload comparisons, 2025

          • Need access

    • [valentin]

      • Planning experiment for DNS caching

      • Experiment Brief - DNS caching experiment

      • Treatment branches will increase DNS cache size and grace period

    • [jesup] Async IO patch from contributor 

      • https://perf.compare/compare-results?baseRev=08c5d44791db2a4b0045baabfc16efad74a967fb&baseRepo=try&newRev=7cf34a070d104766d3639066d00fbf07a7829a9d&newRepo=try&framework=13&filter_confidence=medium%2Chigh

      • Up to 10-15% improvements on a few sites

      • Linux (and mac?) only.  Uses threads behind the scenes - memory hit?  Short duration

      • Windows has it’s own Async IO mechanism

      • Working on a gecko threading impl using background threadpool which would be cross platform