Meeting Notes Meetings notes from the Mozilla community


Mozilla Platform Meeting Minutes: 2012-02-28

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

  • We are here in the schedule
  • Beta 5 will go-to-build this evening PT (2/28). Please nominate/land any applicable bugs asap. If you have a bug currently nominated for mozilla-beta approval, please make sure to be available after today’s 2-3PM PT channel meeting to land approved bugs once we complete our discussions. Alternatively ping akeybl in IRC to expedite the process.
  • Code freeze for FF11 is this Friday (3/2).
  • Final sign-off for FF11 will be scheduled for next Wednesday (3/7). Details to be announced on dev-planning
  • Please see our Channels Triage queries to find tracked bugs for each release. Please let release-mgmt ( know if any of these bugs no longer need to be tracked or need support from QA or the crash-kill team (for Socorro/crash-stats data).

Firefox Development

  • Marco Bonardo landed the livemarks re-write – this was a big chunk of work which has plenty of benefits, including no more synchronous IO, and less entanglement with the rest of places (bug 613588)
  • Paolo Amadini has flipped the default value of the “load tabs on demand” pref, which should help with responsiveness during session restores and memory use for large profiles (bug 711193)
  • Frank Yan’s about:home revision that I mentioned a couple of weeks ago is very close to landing, just need to sort out coordination issues with the server-side snippets service (bug 711157)
  • Silent update: Brian landed the remaining patches for the UAC dialog work.

Firefox Developer Tools

Add-on SDK


  • Snappy weekly summary
  • Livemarks are now async thanks to Marco (bug 613588)
  • There was an increase in negative feedback regarding Firefox 11 beta relative to Firefox 10 beta on SUMO. Cheng and Taras are investigating.
  • Olli and Jan cooked up about:ccdump addon for assist with finding leaks. See Jan’s blog post for more details.
  • Bill landed incremental GC this week, bug 719492. Most users will not benefit from incremental GC until Bill finishes up handling frequent “corner cases” that end up disabling incremental GC.
  • Avi ported his smoothscroll logic to C++, Jared pushed it to the UX branch (bug 206438. If you are interested in fluid scrolling, give it a try, play with acceleration prefs to help us find optimal values.


  • Fennec “maple” builds are getting usable, and we could probably use more technical eyes on them.
    • This is “off-main-thread-compositing”, or OMTC.
    • Probably not 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 WebGL issues (i.e. upside-down on some devices), 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.



Notable Patches:

  • bug 726582 – Prevent nsSMILCSSProperty::ValueFromString from reading uninitialized out-param
  • bug 614732 – For SVG leaf frames, use mRect to store the frame’s user space bounds, and stop using it to store its covered region
  • bug 725903 – PathExtentsToMaxStrokeExtents needs to take a transform argument.
  • bug 725897 – Remove the inaccurate nsSVGUtils::ToAppPixelRect, and use nsLayoutUtils::RoundGfxRectToAppRect instead.
  • bug 707959 – followup, move font cache telemetry into gfxFontCache::Lookup.
  • bug 725376 – Don’t do column balancing deeper than 5 nested levels to avoid hang.
  • bug 718516 – Replace call of FinishReflowWithAbsoluteFrames() with FinishAndStoreOverflow() for nsColumnSetFrame to prevent crash.
  • bug 718516 – Remove call to FinishReflowWithAbsoluteFrames until nsColumnSetFrame is fully implemented as an absolute container.
  • bug 724776 – Change SetForcedCharset to BrowserSetForcedCharacterSet.




  • Updated WebAPI wiki page to contain status for all APIs we’re currently working on.
  • New API drafts for Device Storage, Wifi Information, Mobile Network information, Idle, Sensor and Settings APIs.
  • Philikon has initial implementation of Mobile Network Information API.






Tree Management

  • Dongles installed on all OSX 10.7 test slaves – test results and wait times should be better now


Security Reviews & Threat Modeling Sessions Scheduled for this week

Date / Time Item
Mon Feb 27 / 13:00 PST Threat Model: Metlog
Wed Feb 29 / 13:00 PST Threat Model: Token Server
THU Mar 1 / 10:00 PST SecReview: WebSMS, bug 674725
Fri Mar 12 / 10:00 AM PST SecReview: Snappy Symbolic Server

Calendar and Meeting details

General Meeting Details 
* IRC Channel: #security 
* Etherpad: 
* Vidyo: (Room 9058)
* Dial-in Info (phone): 
** In office or soft phone: extension 92 
** US/INTL: 650-903-0800 or 650-215-1282 then extension 92 
** Toronto: 416-848-3114 then extension 92 
** Toll-free: 800-707-2533 then password 369 
** Conference num 99058

For updates to meetings please see the Security Review Calendar

Review Needed

  • Feature pages triaged to need review, review unscheduled
Feature Feature List Target Rel Prod Mgr Lead Engr Security lead Security status Security notes Last Modified
Client-side XPI construction Jetpack Add-on Builder 2 Daniel Buchner Piotr Zalewa/Sean McArthur `

sec-review-needed `


Add-On Tab API ` Add-on SDK 1.5 David Mason ` Dan Veditz

sec-review-needed `


Migrate Chrome settings and data Desktop Firefox 11 Asa Dotzler Makoto Kato `

sec-review-needed `


Style Editor Desktop Firefox 11 Kevin Dangoor Cedric Vivier `

sec-review-needed `


In-content preferences Desktop Firefox 15 Jared Wein Devan Sayles `

sec-review-needed when ready sched w/ curtisk


DOMCryptAPI (a Crypto API in the DOM) Platform Firefox 15? Chris Blizzard David Dahl Brian Smith

sec-review-needed `


Better rendering of fonts for Windows Platform Firefox 7 Chris Blizzard ` `

sec-review-needed small team review Christoph, bsterne, John Daggett


FlightDeck as a Client-side App Jetpack FlightDeck 1.0 Daniel Buchner Sean McArthur `

sec-review-needed when ready sched w/ curtisk


IndexedDB Support for Multi-Process Firefox Platform Future, distant future. Chris Blizzard ` `

sec-review-needed 2011.10.17: sid recommends we wait on this one but likely needs a review.


Sharing textures cross-process for Electrolysis Platform Q4 of 2011. Chris Blizzard Chris Jones `

sec-review-needed `


SDK Support for Firefox for Mobile Addons Jetpack TBD David Mason Matteo Ferretti `

sec-review-needed `


Sign into the browser Other TBD Dan Mills Ben Adida `

sec-review-needed when ready sched w/ curtisk


Tip of the day Thunderbird Thunderbird 11 Jean-Baptiste Piacentino Sancus `

sec-review-needed `


Modern Address Book – V1 Thunderbird Under revision ` Mike Conley `

sec-review-needed `


Blocklist UX enhancements [Plug-ins] Desktop ` Kev Needham ` `

sec-review-needed `


Use PFS2 as Plugin Finder data source Desktop ` Kev Needham ` `

sec-review-needed `


Add plugincheck functionality to Add-on Manager Desktop ` Kev Needham ` `

sec-review-needed `


Bugs marked sec-review-needed that need to be scheduled

ID Summary Status Priority
711618 implement click to play permission model NEW
585958 webapps OS level integration : Maemo NEW
721923 Security Review request for Automated/Assisted landing from Bugzilla to tip of $branch NEW
714302 add support for HTTP status code 308 NEW
567365 Cache-Control no-cache on https page disables history NEW
664636 Thunderbird should (semi-)automatically improve the security-related server configuration settings when it knows an improvement could be made NEW
664637 Thunderbird auto-configuration database should be expanded & updated by regularly spidering every domain on the internet NEW
674047 Teach FileSaver to take URIs as well NEW
677302 Preffing out CSS should be easier NEW
722126 Can’t transfer File objects with postMessage cross domain NEW
463027 Implement per-window Private Browsing NEW P4
718066 [meta] Add feature to submit anonymous product metrics to Mozilla ASSIGNED
80713 Need a way to specify an auto-height (size) for an IFRAME such that the frame is given the full height of the contained content ASSIGNED
674726 WebTelephony RESOLVED
728341 Security Review for Beta Release of App RESOLVED
706545 Implement a sync engine for apps exposed by navigator.mozApps RESOLVED

Stability Report


  • Correlation reports for Aurora and Trunk are available in subdirectories of starting with today as bug 723182 is fixed now (for some reason Socorro isn’t picking them up correctly, but this whole mechanism is a bit wonky and will be replaced with a better model in the next months anyhow). Will work on getting the version for the next Firefox cycle there near to the source uplifts.
  • Next incremental Socorro release landing on Wednesday – no big changes, a couple of skiplist additions, fix for bug 724670 which unbreaks report lists for some Java signatures.
  • Stackwalking fix for MSVC2010 (and possibly browser-side hang signatures on FF11+) could also land with this release on Wednesday, see bug 726570.
  • Main focus of work for next release is ESR support.



  • bug 730550 Crash in gfxUserFontSet::OnLoadComplete @ __delayLoadHelper2
  • bug 730277 Crash @ nsWindowGfx::Data32BitTo1Bit
  • bug 730274 Startup crash in nsAppShell::ProcessNextNativeEvent @ DispatchHookA
  • bug 730633 crash in nsNSSSocketInfo::SetCertVerificationResult or nsNSSSocketInfo::StartTLS @ dyld_stub_binder




Graph and Soccoro work can be seen in the Testing Meeting notes 2/29/2012


  • 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 730890 – crash @<address>
  • bug 725167 – java.lang.IllegalArgumentException: Given view not a child of android.widget.AbsoluteLayout@4… at android.view.ViewGroup.updateViewLayout(


  • bug 725295 – [Skia] Crash Report @ _ZN8SkBitmapaSERKS_ on HTC devices
  • bug 730890 – crash @<address>
  • bug 729129 – crash @ dlmalloc_walk_free_pages dvmHeapSourceTrim


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