Necko Team – Weekly Status Meeting Notes

Date: 2026-06-16
Edition: June
Facilitator: Greg
Next on Triage: Kershaw Jang
Quality Report Coordinators (June): Valentin Gosu / Sunil Mayya

Round Table

Firefox 153 Beta Readiness

• Firefox 153 entered beta validation phase.

• Key projects reviewed:

  • Compression Dictionaries

  • Local Network Access (Android)

  • WebTransport

• Compression Dictionaries are now rolling into beta with monitoring and alerting preparation underway.

• Project rollout remains healthy with no major concerns reported.

WebTransport Progress

• Randell reported:

  • 3–4 patches already landed.

  • Roughly 20 patches remain in flight.

  • Waiting for updated neqo import before larger Gecko landing work begins.

• Plan:

  • Cut a new neqo release after SendGroup and Draft-15 patches land.

  • Continue incremental landing strategy.

• Current target: Firefox 154.

Compression Dictionaries Rollout

• Firefox 153 beta rollout beginning.

• Team preparing:

  • Release notes

  • Alerting expectations

  • Monitoring dashboards

• Greg asked Randell to coordinate with Deanna regarding expected alert volume during rollout.

• Text/plain sniffing issue remains under investigation.

DNS Performance & Happy Eyeballs

• BER reported:

  • Unexpectedly low DNS cache hit rates.

  • DNS lookup regression affecting current measurements.

• Team agreed:

  • Delay further DoH experiment rollout until DNS regression understood.

  • Capture logs and investigate cache utilization.

• Happy Eyeballs remains enabled in Nightly but rollout decisions depend on resolving DNS timing issues.

GLAM Label Counter Bug

• Oskar reported GLAM counters are currently misleading.

• Root cause:

  • Aggregation normalization causes dual-labeled metrics to be counted incorrectly.

• GLAM team investigating ETL changes and potential backfill.

• Recommendation:

  • Introduce metadata marker when aggregation methodology changes.

Team Check-ins

Valentin

• Cache encryption landed and riding trains.

• Investigating:

  • StandardURL crashes

  • Priority queue items

  • Compression dictionary text/plain compatibility fix

• Believes text/plain compatibility cleanup should take only a few days.

Randell

• Continuing WebTransport landing work.

• Preparing:

  • Compression Dictionary beta rollout

  • Release notes

  • Alerting validation

• Continuing WebCompat investigations.

Kershaw

• API enablement work continuing.

• Investigating:

  • DNS lookup regression

  • DNS cache usage

  • ECH/DoH interactions.

Max / BER

• Happy Eyeballs analysis ongoing.

• Observed DNS timing regressions requiring investigation.

• Continuing HTTPS RR advocacy and saferroundtrip.com outreach.

Oskar

• Investigating GLAM metric aggregation bug.

• Continuing SEARCH / congestion-control experimentation work.

Important Business

Priority Queue

Closed Fixed (Last Week)

• 2044202 – Certain websites load extremely slowly after first load

• 2045419 – 12.5% regression on talos tp50-slideshare.et

• 2045754 – Optional encryption for on-disk cache landed

• Additional networking and stability fixes landed during the week.

Active Projects

DoH Enablement

• DNS performance investigation remains primary focus.

• Happy Eyeballs rollout dependent on resolving DNS timing regression.

• Further experimentation temporarily paused.

Compression Dictionary Transport

• Firefox 153 beta rollout beginning.

• Monitoring and alerting setup in progress.

• Release notes pending.

WebTransport (Interop 2026)

• Active landing phase.

• Multiple patches already landed.

• New neqo release required before larger Gecko integration.

• Firefox 154 target.

Local Network Access

• Desktop rollout at 10%.

• Android rollout continuing on Firefox 153.

• Worker support landed.

QUIC / SEARCH / HyStart++

• SEARCH experiment analysis continues.

• Additional metrics work planned.

• GLAM aggregation issue under investigation.

Happy Eyeballs

• Nightly rollout continues.

• DNS timing regression currently blocking further experiment expansion.

Speculation Rules API

• WIP patches under active testing.

• Bug fixing and review cycle continuing.

Performance & Quality

Key areas of focus:

• DNS cache hit-rate investigation

• DNS lookup latency regression

• Happy Eyeballs validation

• Compression Dictionary beta monitoring

• SEARCH congestion-control evaluation

• WebTransport interoperability readiness

WebCompat

Needs investigation:

• 2042802

• 2044337

• 2045020

• 2040124

• 1975238

Guidance:

• Continue assigning investigation ownership.

• Create component bugs rather than moving WebCompat bugs directly.

• Keep outstanding NIs under three.

Decisions & Alignment

• Continue WebTransport landing work toward Firefox 154.

• Proceed with Compression Dictionary beta rollout and monitoring.

• Hold expanded Happy Eyeballs experimentation until DNS regression understood.

• Continue using Priority Queue to balance workload and reduce burnout.

Action Items

Greg

• Coordinate alerting expectations with Deanna for Compression Dictionaries.

• Review Costco login WebCompat issue.

• Promote disabled-test cleanup during next Hack Day.

Randell

• Rebase and land IETF code point negotiation patch.

• Start Compression Dictionary beta rollout.

• Write Firefox 153 release notes.

• Investigate WebCompat issues.

Valentin

• Complete text/plain sniffing compatibility fix.

• Continue StandardURL crash investigations.

• Continue PQ and security bug work.

BER / Max

• Investigate DNS cache utilization and lookup regressions.

• Resolve DNS timing issue before further DoH experiments.

• Coordinate mass project sync participants.

Team

• Help investigate WebCompat backlog.