Meeting 2024-11-12

• Team calendar

  • Next on Necko triage: Kershaw

• New contributors / Friends of Necko THANK YOU!!

  • Mike Hommey [:glandium]

    • Bug: 1928309 Adjust the User-Agent string on iOS

  • John Schanck [:jschanck]

    • Bug: 1926127 Enable mlkem768x25519 in h3 in early beta and earlier

  •  Oskar Mansfeld

    •  Bug: 1761248 Expose API to report Early hints information for devtools

  •  edwyn.zhou

    • Bug: 1926989 Preference name misspelled: “dom.security.https_first_add_exception_on_failiure

  • Cosmin Sabou [:CosminS]

    • Bug: 1925999 Perma [tier 2] netwerk/test/unit/test_http3.js | xpcshell return code: 0 | testOnStartRequest - [testOnStartRequest : 155] 0 == 2152398919

• Round Table

  • – enter topics –

• Active Projects roadmap Fx132 rel Oct 29, Fx133 rel Nov 26, Fx134 code freeze Nov 21 

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

    • – enter updates –  

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

    • [Greg] Pinged Amedyne Moya to request dev support, TBD

    • – enter updates –

  • 3rd Party Cookie Deprecation (in progress, target Fx134)

    • [Ed] CHIPS re-rollout backed out, likely another attempt this week.

    • Tentative 3PCD/CHIPS rollout:

      • 134: 

        • 3PCD experiment

        • re-enable chips, ride the trains to release (Jan 7)

          • Note: CHIPS-related breakage

      • >134

        • (pending experiment): 3PCD in all windows in release

          • Note: 3pcd-related  breakage

      • >136

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

  • Fetch keepalive: (riding the trains, Target Fx133) 

    • – enter updates – 

  • Firefox/Chrome benchmark test suite (in progress, Fx132)

    • First cut of download results: https://lookerstudio.google.com/reporting/f5fbaacd-a473-4daf-bf22-faa3d3c8391f/page/DO9EE

      • Update TC scripts 

      • Ship this week or next 

    • [kershaw] 

      • Bug 1930638 When running upload/download test, make sure a clean connection is used in each run

        • R?

      • Latest result of download test

unthrottled

fast5G

busy5G

slow3G

Firefox

953.96

220.44

41.4

0.92

Chrome

585.92

175.36

29.1

0.92

• Interop 2024 URL (in progress, target H2 2024)

  • [Ed] Wrote patch for https://bugzilla.mozilla.org/show_bug.cgi?id=1922028 

• 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 H2 2024)

  • milestone 1 - basic end-to-end integration

    • Report of quinn-udp breaking HTTP3/QUIC on Windows on ARM

      • Narrowed down the bug to the UDP segmentation system.

      • In touch with Microsoft (Nick Banks, MSQUIC author).

      • Trying to get my hands on a Windows on ARM machine to speed up debugging cycles. See Slack conversation.

  • milestone 3 - Benchmark result for download and upload

    • Use simulated time in qlogs (i.e. now), thus allowing us to easily plot congestion control and flow control behavior using various network scenarios. See mozilla/neqo#2211.

    • Add QUIC frame Glean metrics.

      • See bugzilla#1929818.

      • E.g. answers questions like: how many migrations do we see? Have we improved receive window auto-tuning (flow-control), …

• Implement WebTransport based on HTTP/2

  • [kershaw]

    • Just started

• Performance work: 

  • [acreskey]

    • FYI, proposal on solution to Fenix slow pageload progress bar

      • Bug 1906726 - Fenix pageload progress bar can take multiple times longer to complete than Chrome (e.g. 50 seconds vs 10 seconds)

  • Response protocol version and HTTP/3:

    • query - protocol version from root document request - about 14-18%

    • Other sources report ~30% of requests:

      • https://httparchive.org/reports/state-of-the-web#h3

      • https://w3techs.com/technologies/details/ce-http3

    • Useful to have a query based on migrated probe:

      • https://glam.telemetry.mozilla.org/fog/probe/networking_http_response_version/explore?aggKey=http_3&aggType=sum&app_id=beta&ping_type=*