Meeting Notes Meetings notes from the Mozilla community


Mozilla Platform Meeting Minutes: 2012-03-06

Filed under: Posts — Tags: — Jesper Kristensen @ 12:00 am


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Platform Meeting Details

  • Tuesdays – 11:00 am Pacific
  • Dial-in: conference# 95312
    • US/International: +1 650 903 0800 x92 Conf# 95312
    • US toll free: +1 800 707 2533 (pin 369) Conf# 95312
    • Canada: +1 416 848 3114 x92 Conf# 95312
  • Warp Core Vidyo Room
  • join #planning for back channel


Notices / Schedule

  • Nightlies of the ESR pushed over email to enterprise mailing list yesterday (3/5) for smoke testing and minor exploratory testing with internal websites
  • Firefox 11 sign-offs tomorrow (3/7) in Warp Core at 1PM PT
  • Firefox 11 beta 6 expected to go out tomorrow (3/7)
  • Beta of 3.6.28 going out Thursday (3/8)
  • Final go-to-build for FF11 will be Friday (3/9)
  • Release/merge day is next Tuesday (3/13) – land your last minute FF13 changes now
  • As a reminder, these are the products that we plan to ship
    • Firefox 11
    • XUL Fennec 10 off of ESR branch
    • Firefox 3.6.28
    • Firefox 10.0.3esr

Firefox Development

Firefox Developer Tools

  • JS team landed onPop and getAllScripts support, debugger stepping will be in nightlies soon.

Add-on SDK


  • Snappy weekly summary
  • Increase in negative SUMO reports mentioned last week was due to over-counting. There might be some networking regressions, but no general slowdown.
    • To make SUMO reports more useful to developers we are looking to attach telemetry data: bug 732522.
  • Nick is getting rid of main thread cache locks, bug 723577. Limited initial testing indicates this is a very big win.
  • Brian’s prefetch nuking bug 692255 is moving along.
  • Interactivity profiling is close to landing, bug 710935.
  • Dietrich is looking to alter our startup sequence to show the main window sooner, bug 715402.
  • Vlad tweaked chromehang to work on all windows versions and is working on the serverside component with Benjamin, bug 712109.
  • Taras posted the plan to shut down Firefox efficiently. Rafael is working on this in bug 662444. Feedback appreciated.
  • Jared has landed more of Avi’s smooth scrolling tweaks on the ux-branch, bug 198964.
  • Dietrich and Andrew are looking into massive CC pauses after resume, bug 639262.
  • Nathan landed persistent telemetry, bug 707320…but it’s not quite working yet, bug 732970.
  • See Chris’ great post on DOM Local Storage and the related discussion.


  • (Mostly holdover) Fennec “maple” builds are more usable, and we could definitely use more technical eyes on them.
    • This is “off-main-thread-compositing”, or OMTC.
    • Thanks to philor & releng, you’ll get nightly updates as of tonight.
    • Might not be ready for every-day use, but already much more usable on anything with an Adreno GPU (Nexus One, HTC Desire HD, etc).
    • Known issues: Some jankiness, some checkerboarding issues.
    • File whatever bugs you find in Core :: Graphics, and put “MAPLE” in the whiteboard.
    • Note: This testing is only needed on Android devices; desktop should be unaffected by these changes.



Specs to Track:

  • CSS3 Fragmentation – first public working draft. collecting comments
  • CSS3 Backgrounds & Borders – CR in 3 weeks
  • CSS3 Images – LC period is over. Several substantive issues found during LC.
  • CSS3 Values & Units – LC this week. CR next month.
  • CSS3 Text – WD starting to stabilize. 2 more drafts before LC.
  • CSS3 Writing Modes – WD. Needs a review re: Layout implications. Vertical text work can start.
  • CSS4 Selectors – WD will republish in 3 weeks. LC this summer.
  • CSS3 Grid – WD lots of issues still. Need to study the algorithm in Grid spec and Templates spec.
  • CSS3 Templates – WD. will likely merge with Grid.
  • CSS3 Transforms, Transitions, and Animations. Trying to advance WD by stabilizing existing feature set.

Current Work:

  • Performance work on CSS Transforms, Transitions, Animations (e.g.. bug 524925, others)
  • bug 539356 – PerformanceInfrastructure work on entire scene graph
  • bug 614732 – Performance/Infrastructure work on SVG
  • CSS3 FlexBox starting Security review (Feature ETA: March 30)
  • CSS2.1 Test Suite work ongoing
  • CSS2.1 page-break-* features starting in Q2
  • bug 689623 – API for image visibility.
  • bug 702463 – scrolling on the refresh driver
  • bug 706193 – Mobile Readability



  • JS_ClearScope() (bug 637099) removal for global window objects landed! (peterv)







  • work week in Toronto next week!

Tree Management

  • no updates


Stability Report


  • bug 731653 Bugs for some signatures are not showing up in Socorro should now be fixed
  • Tomorrow’s Socorro release is focused on supporting ESR builds (esp. for mobile, but probably will work fine for desktop as well).


  • Beta
    • bug 715757 crashes under JS_AbortIfWrongThread, likely from malware or bad extension
    • bug 731984 Roboform crash that should be fixed with the release of their new version.
    • bug 700176 Startup crash still under investigation and correlated to several toolbars.
    • bug 721667 Incomplete framebuffer abort in mozilla::gl::GLContext::SetBlitFramebufferForDestTexture – Mac crash that is reproducible
    • bug 731565 Startup crash PR_NewPollableEvent



  • bug 730890 – crash [@<address>]
  • bug 721086 – Crash in mozilla::AndroidBridge::CallEglCreateWindowSurface @ nsWindow::GetThebesSurface
  • bug 730688 – java.lang.RuntimeException: Unable to resume activity {org.mozilla.fennec/org.mozilla.fennec.App}: java.lang.RuntimeException: Failure delivering result ResultInfo{who=null, request=2, result=-1, data=Intent { (has extras) }} to activity {org.mozilla.f…


  • bug 731286 – compilation of crashes within libflashplayer
  • bug 725295 – [Skia] Crash Report [@ _ZN8SkBitmapaSERKS_ ] on HTC devices
  • bug 730890 – crash [@<address>]


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