Meeting Notes Meetings notes from the Mozilla community


Mozilla Platform Meeting Minutes: 2012-05-01

Filed under: Posts — Tags: — Jesper Kristensen @ 11:00 pm


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Platform Meeting Details

  • Tuesday 2012-05-0111:00 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 / SFO-7N Noise Pop
  • join #planning for back channel



  • Efforts continue to “define” k9o
    • Excellent conversations on the list
    • – continue to add bugs
    • Lots of questions about triage. Group of product and project managers will triage noms to help people get a sense of k9o.
    • bsmedberg sent out a note about triage tool – leads.
    • Some outstanding items to triage – happening after this meeting
  • There is an App/Site compat effort to ensure content works on the Mozilla platform
    • Involvement from business dev, QA, product, engineering, dev evangelism, market insights, press
    • Information and details being documented on the wiki
    • Lawrence Mandel (lmandel) for questions, to get involved

Notices / Schedule

  • We’re here in the schedule
  • Unthrottling of FF12 will be discussed at today’s channel meeting, 2PM PT in Warp Core. Right now contingent upon bug 748269
  • Next round of 3.6 EOL Major Update prompts will go out at the earliest today
  • Automatic updates from 3.6 to FF12 is planned for the week of 5/7
  • FF12 (and associated releases) post-mortem will be held next week
  • FF13 beta 2 will go to build today, released Friday

Firefox Development

  • Firefox team sprinted to get a prototype of “sign in to browser” working
  • Firefox Product Lead (Asa) met with Firefox Desktop Engineering Leads and sorted out all K9O work. Bugs filed.

Firefox Developer Tools

Add-on SDK


  • This week’s Snappy summary
  • Kyle landed a very significant Snappy fix this week as part of memshrink that reduces leaks in chrome (bug 695480). It should significantly reduce memory usage and thus cycle-collector pauses, etc.
  • Patrick landed a change to have Firefox now hedge bets and warm up a TCP connection while checking the cache (bug 729133). More details on Patricks’s blog.
  • Work going into improving setTimeout (bug 743877, bug 715376).



  • FIXED: bug 750424 nsXULPrototypeNode::Release should add itself to the purple buffer. This was blocking bug 735099 Re-enable incremental GC


Fennec and other bugs:

  • bug 728284 – Main container layer has siblings that are drawn in the background
  • bug 732016 – Maple: scrollIntoView does not clamp to the page size
  • bug 728983 – Maple invalidation problems with scrollable layer and multiple div’s
  • bug 706193 – footer text on inflated too much
  • bug 708175 – Form controls with fixed width or height shouldn’t have their text inflated
  • bug 745780 – update harfbuzz code to upstream commit
  • bug 746975 – update graphite2 library to 1.1.2 release
  • bug 745580 – handle bad results from Core Text shaping more robustly.
  • bug 706194 – Adapt and check in tests from webkit for new unicode-bidi attributes
  • bug 279330 – Midas hilitecolor command only works in CSS mode
  • CSS Working Group meeting in Hamburg next week.
  • Hoping to land GPU-accelerated clipping to border-radius today bug 716439. Fixes various performance problems with scrolling inside elements with border-radius, and canvas/video with border-radius. Some big changes. (ncameron)


  • Landed MediaStreams infrastructure on mozilla-central (roc). Currently the only exposed APIs are mozCaptureStream/mozCaptureStreamUntilEnded on media elements and the ability to set MediaStreams as the src of media elements, so you can route video/audio from one media element to another. Not that useful by itself, but a foundation to build other APIs on (getUserMedia, WebRTC, audio/video processing) etc. Next step is to land some processing functionality.
  • Not video, but Nick is going to land a patch to disable attempts to remove our exception handler that triggers breakpad. This may reveal latent crashes.








  • Accessibility engine is now built by default on Mac FF nightlies so that we can widen testing for ~5 weeks. We may revert for Aurora.

Tree Management

  • upcoming downtime while moving ftp.m.o/stage/surf to scl3
    • RelEng getting access today, will start verification
    • needs 5+ hours
    • needs tree closure *and* also blocks us doing releases.
    • tinderbox will also be offline during this time
  • possible ride-along moving graphserver


For updates to meetings please see the Security Review Calendar

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

ID Summary Status Priority
748945 Review iframe auto-height feature (part of seemless iframes) NEW
748949 Review changes to Cache-Control: no-cache on https pages NEW
749221 Security Review of Media Plugin API (MPAPI) NEW
749233 Security Review of turn on “don’t load tabs until selected” by default / Tabs on Demand NEW
749235 Security Review of Enable HTTP pipelining by default NEW
749334 SecReview: webapps OS level integration : Maemo NEW
749337 SecReview: Thunderbird should (semi-)automatically improve the security-related server configuration settings when it knows an improvement could be made NEW
749339 SecReview: Thunderbird auto-configuration database should be expanded & updated by regularly spidering every domain on the internet ( NEW
749341 SecReview: Teach FileSaver to take URIs as well NEW
749342 SecReview: “App-state” API, so that content knows when it becomes hidden etc. NEW
749344 SecReview: WebUSB NEW
749355 SecReview: WebContacts (or Contacts+) NEW
749360 SecReview: (webtelephony) WebTelephony NEW
749362 SecReview: WebBluetooth NEW
749363 SecReview: Preffing out CSS should be easier NEW
749364 SecReview: WebPrint (or WebIPP) NEW
749365 SecReview: API for “home screen” app locking display, listening for “wake up” button, etc. NEW
749372 SecReview: Relax same-origin XHR restrictions for privileged applications NEW
749374 SecReview: (browser-api) Browser API NEW
749378 SecReview: Network manager API NEW
749379 SecReview: [WebAPI] Proper WebAPI permissions manager NEW
749625 SecReview: (camera) camera support for desktop NEW
706184 TellUsMore: Security review REOPENED

Stability Report


  • Wednesday’s release will feature a new reports of crash trends based on build dates (bug 640238).
  • Plan for rapid beta support is being worked on, will delay work on other planned features.


  • bug 704158 – Blocking older versions of Flash.


  • bug 750556 crash in mozilla::dom::Element::ClearStyleStateLocks


  • bug 750019 crash in js::types::TypeSet::addType @ nsIDOMHTMLDocument_Write


  • bug 750625 crash in nsUrlClassifierPrefixSet::GetPrefixes


  • New crash in nightly with epoll_wait
  • Mobile specific socorro/breakpad integration issues : see Mobile Notes

Nightly Native

  • bug 746946 – Fennec crashes repeatedly after opening the bookmarks or history section with a clean profile
    • Landed 4/30 on Aurora; Landed 4/29
  • bug 748721 – crash in mozilla::layers::BasicTiledLayerTile::BasicTiledLayerTile
    • Does not occur on 4/27 and later.
  • bug 749816 – crash in epoll_wait after changing display: table-column style to display:none on body
  • bug 738198 – crash in nsPluginInstanceOwner::~nsPluginInstanceOwner @ nsPluginInstanceOwner::RemovePluginView

Aurora Native

  • Top 2 are the same as in Nightly
  • bug 730890 – crash [@<address>]


  • mozilla-central and mozilla-inbound CLOSED for bug 750661. Need help from everyone to get as much code out of libxul as possible. Ping ehsan if you can help.
  • The Notifications service has a Product page & there is a meeting with Product owners to discuss what integration into different clients looks like on May 2nd at 2pm pst. ping :ally if you are interested.

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