Firefox/Channels/Meetings/2020-03-17

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Channel Meeting Details

• Tuesdays at 10am and Thursdays at 8am Pacific Time
• Riot #release-drivers for backchannel
• Past meeting notes: https://wiki.mozilla.org/Firefox/Channels/Meetings

Video/Teleconference Details

• Zoom Meeting ID: 536 097 768
• https://mozilla.zoom.us/j/536097768
• +17207072699,,536097768# US
• Find your local number: https://zoom.us/u/agItTmqIu

REMEMBER

These notes are read by people who weren't able to attend the meeting. Please make sure to include links and context so they can be understood.

Attendees

Luna, Aryx

Schedule Update

• 74.0 live @ 100%

• 75.0b5 gtb today

• Fennec 68.7b1 shipped @ 100% yesterday
  • Fenix Beta migration timing being discussed in light of pwn2own changes

Release Metrics

Report on release criteria metrics from DRIs

• Stability
• Performance
• Security
• Functionality
• Accessibility

Desktop Stability

Nightly

mc2 crash rate: 1.76, crash incidence: 2.31%, mc1 summary score: 6.39 thursday mc2 crash rate: 1.80, crash incidence: 2.80%, mc1 summary score: 11.49

Beta

mc2 crash rate: 2.52, crash incidence: 1.54%, mc1 summary score: 4.73 thursday mc2 crash rate: 3.25, crash incidence: 1.59%, mc1 summary score: 6.70

[75.0b4]

• audioipc crash in trunc | cubeb_backend::capi::capi_stream_init<T>: https://bugzilla.mozilla.org/show_bug.cgi?id=1621360 - 5.5% of content crashes
• audioipc crash in trunc | std::sys_common::backtrace::__rust_begin_short_backtrace<T>: https://bugzilla.mozilla.org/show_bug.cgi?id=1622931 - 0.5% of browser crashes
• Crash in [@ mozilla::css::StreamLoader::~StreamLoader]: https://bugzilla.mozilla.org/show_bug.cgi?id=1615832 - 0.7% of content crashes
  • a patch landed and status 75 in the bug is set to fixed but crashing volume is still high

Release

mc2 crash rate: 1.29, crash incidence: 1.18%, mc1 summary score: 3.21 thursday mc2 crash rate: 1.13, crash incidence: 1.14%, mc1 summary score: 5.89

[74.0]

• webrtc crash in mozilla::VideoStreamFactory::CreateEncoderStreams on google hangouts/meet: https://bugzilla.mozilla.org/show_bug.cgi?id=1521169 - 1% of content crashes
• Crash in [@ mozilla::dom::BrowsingContext::CanAccess]: https://bugzilla.mozilla.org/show_bug.cgi?id=1576262 - 0.8% of content crashes
  • spiking in 74 - gone in 75

Mobile Stability

Fennec

• Crash rate is calculated based on usage hours (the time Firefox is actively used).
• Usage hours will be significantly lower on Fennec than on desktop Firefox, so we can't compare mobile rates to desktop rates.