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Notices / Schedule

Firefox 4

  • Beta 8 looks great! Thanks everyone
  • Plan to do a quick, date-driven beta 9 (for reals this time)
    • Plan to code freeze this Friday, 2011-01-07
    • Weekend will hopefully shake any issues out
    • Branch and build on Monday, 2011-01-10 if no major issues are found
      • If issues are found, day-for-day slip on the builds
    • Release to beta audience on Thursday, 2011-01-13
  • If anyone has a problem with this plan, please speak up now or send an email to release-drivers later

Firefox 3.6.14 and 3.5.17

  • Slight change to the schedule. Splitting up blocker and non-blocker freeze dates
    • Code freeze for non-blockers is now 2011-01-11 (1 week away)
    • Code freeze for blockers is still 2011-01-17 (2 weeks away)

Blocker Report

Firefox 4 Beta

  • 4.0.beta9
    • blocking: 136
    • fixed: 83
    • open: 53
  • 4.0.betaN
    • blocking: 1427
    • fixed: 1170
    • open: 257
    • blocking: 1315
    • fixed: 1124
    • open: 191

Firefox Development

(from our goals):


  • [ON TRACK] API-Complete Jetpack
    • Joint with Jetpack team
    • Currently working towards feature-complete beta SDK
  • [ON TRACK] Stand up basic Firefox with Electrolysis

Developer Tools

  • [NEW] Ensure that Firefox 4 ships with a compatible version of Firebug
  • [NEW] Publish a roadmap for integrated developer tools in Firefox, including console, inspection, and js debugging
  • [NEW] Develop long term plan for Skywriter maintenance/support


(there is a team-by-team goals breakdown, as well)

  • [DONE] Javascript performance near or even with Chrome 5 on their benchmarks (within 20% on SS, 30% on V8), with substantial wins on our benchmarks. (Windows, in-browser.)
  • [DONE] Hardware acceleration of video and other HTML and SVG content, as well as user interface, on by default for compatible hardware on all Tier-1 desktop and mobile platforms.
  • [DONE] Fully support the WebGL 1.0 spec, with support turned on by default in a Firefox 4 beta on platforms that support OpenGL or OpenGL ES.
  • [MISSED] security: zero reproducible high/crit > 30 days
  • [DONE] Support multi-process Fennec.
  • [DONE] Support Jetpacks running in separate processes and never blocking the Fennec UI. NOTE: jetpack team hasn't actually integrated this code yet, but it works in small test environments.


  • 34 blockers, 0 beta9
  • Preliminary support for hardware-accelerated ClearType (subpixel anti-aliased text) has landed.
    • Currently only works for Direct3D 9, which is incompatible with Direct2D.
    • Pending work enables it for Direct3D 10 and OpenGL (Mac).
    • Net of this: much less frequent jaggy/gross looking text.
  • Video Driver Black/Whitelisting project


  • Down to 60 blockers
  • No beta9 blockers

Tree Management

  • Finally got tegras up *and staying up*
  • 17% drop in #checkins during the prolonged b7, b8 lockdown. For details, see [1] and [2]
  • expecting a lot of checkins this week (post vacation!)


  • Compartmental GC and beta 9?
    • Don't think it's on TM yet but generally done
    • We need a realistic assessment if we expect it in
    • Wouldn't hold beta 9 for it
    • Beta 8
    • Trunk
      • Spike in crashes before x-mas but now back to reasonable level.
      • #1 crash - old signature gfxContext::gfxContext(gfxASurface*) appearing again.
      • QA logging some new regressions.
    • 9 nominations to triage -