Meeting 2025-01-28

• Team calendar

  • Next on Necko triage: Ed

• New contributors / Friends of Necko THANK YOU!!

  • Tim Huang[:timhuang]

    • Bug:1934278 Assertion failure: false, at /builds/worker/checkouts/gecko/netwerk/cookie/CookieServiceChild.cpp:318

  • Andrea Marchesini [:baku]

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

    • Bug:1942574 Add UseCounter for CookieStore API

  • Paul Bone [:pbone]

    • Bug:1943235 non-unified build bustage in SandboxTestingChildTests.h

• Round Table

  • (sunil) Community input requested on blocking 0.0.0.0 by default: https://connect.mozilla.org/t5/discussions/firefox-blocks-0-0-0-0-ip-addresses-tell-us-what-this-means-to/m-p/84788#M32428

  • (greg) Interop 2025 - URL Pattern https://mozilla-hub.atlassian.net/browse/FFXP-3219 

    • Some Necko work, we will take it on

    • With our plans to import Denoland, unblocking Compression Dict Transport, are there additional dependencies on Interop 2025 - URL Pattern?

    • How to we want to coordinate this work with DOM team?

      • Necko import lib

      • Write web IDL and hooks for DOM

      • Jens: if anything we could help with the glue code and API exposure

  • [acreskey] Testing on Dual stack: Happy Eyeballs / ipV6. Infrastructure requirements?

    • Causing delays until disable IPV6, lots of edgecases to handle 

    • IPV6 DNS records, had connectivity but was not working properly, timing out or something else, had to disable IPV6 to resolve

    • In order to test happy eyeballs we need this to test, aligned with OKR’s

    • Leverage FF/Chrome benchmark framework to test this, canned scenarios we can run in CI

      • Improve pageload testing with networking

      • Replace MITM proxy with this strategy

      • Schedule meeting with Performance Team and Kershaw

      • IPV6 improvements depend on this test capability

    • Currently don't have a lot

      • Not sure if CI supports IPV4 and 6

        • Automation uses local host, how we race IPV4/6, not accurate in real world

  • – enter public topics –

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

  • Private Network Access

    • (sunil) started with the implementation

    • Updated Project Plan

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

    • (valentin) Updated patch and up for review.

    • – enter updates – 

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

    • (sekim) Connected GeckoView prefs (network.trr.uri & network.trr.mode), WIP to connect the exceptions

    • Demo:

• 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)

  • Test result with using fetch to upload

    • Deviation is high when bandwidth is configured to 300M

    • iPerf3 is already installed on the test machines. Currently, writing script to get baseline data.

  • Kershaw Jang Need TCP performance as a baseline

    • Suspect TCP will get 90% utilization 

  • Patch needs review

• 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)

  • Blocked on Neqo v0.12 update https://phabricator.services.mozilla.com/D234901

  • Need to propagate Rust IO errors.

• QUIC stream receive window auto-tuning

  • Implementation ready for review 

  • – enter updates – 

• QUIC Acknowledgement Frequency draft 10

  • No progress since last week

• Implement WebTransport based on HTTP/2

  • Implementing capsule protocol

  • Will rebase patches and land after soft freeze

• NEL

  • – enter updates –

• DNS Cache Expiry

  • 1937022 - Experiment with a larger DNS grace time and a larger DNS cache size

  • Experiment Brief - DNS caching experiment

• Performance work: 

  • [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