Platform/2009-Q4-Goals

General Goals

  • Improve product responsiveness and startup performance.
  • Drive towards process separation with a focus on Fennec.
  • Improve web capabilities.
  • ARM Support
    • Testing infra
    • Crash reporting
  • Release Firefox 3.6

GFX

  • Performance: specifically, responsiveness.
    • Create an automated responsiveness/interactivity benchmark.
    • Improve Gecko/Firefox's score on that benchmark substantially (at least 25%).
    • Support and/or participate in the startup time work being done by the Firefox group.
    • Participate in the Electrolysis project by adding support for windowless plugins on Windows.

Win Integration

  • Address any Win7 compatibility issues that show up

Layout

  • Improve the Web platform by contributing to tests and specifications
    • Publish CSS3 Selectors as CR [fantasai]
    • Ongoing development of reftest infrastructure for the W3C [fantasai, jwatt]
  • Improve the Web platform by implementing key features
    • Land Harfbuzz prototype integration in tree (allows for richer typographic control, also lays groundwork for performance improvements) [jfkthame]
    • Implement calc() (Web platform) [dbaron]
    • Support CSS transitions/SVG animation on nearly all CSS values (browser parity) [dbaron, dholbert]
    • Enable SVG Animation with shippable feature set (near-complete CSS property coverage, near-complete SVG attribute coverage, but not necessarily syncbase timing) (Acid3, browser parity) [dholbert, birtles, jwatt]
  • Improve perceived and measured performance
    • CSS scanner performance analysis and improvements (performance) [zwol]
    • Implement some kind of lazy frame construction [?] (still working out a plan)
    • Compositor phase 2 --- paint and animation control (performance, also add JS animation API to the platform) [roc]
  • Improve core code architecture to improve stability/performance and reduce cost of future enhancements
    • Simplify frame destruction [fantasai]
  • General product improvement
    • fix scroll position restoration and maintenance (bugs 43114 / 103279) [dbaron]

Video/Audio

  • Video on ARM - 15fps on N900 full-screen?
  • 'buffered' and 'seekable' TimeRanges [cpearce]
  • Remove dependency on libfishsound, liboggz, and liboggplay [doublec]
  • Experimental implementation of accelerated full-screen video using cairo-gl [kinetik]

Mac OS X

  • Resolve Mac OS X Java situation for Firefox 3.6.
  • Fix any major regressions in 64-bit Mac OS X builds.
  • Complete initial performance analysis of 64-bit Mac OS X builds. Should include comparison with 32-bit builds on 10.6 for major benchmarks.
  • Fix all known regresssions in Cocoa NPAPI, make it ready to ship.

Content

  • XBL2
    • Implement remaining binding mechanisms (rollover from last quarter)
    • Implement support for mutations of childlists and the anonymous tree
    • Implement xbl:attr and xbl:text
    • Land document-audit patch on trunk
  • Move the web forward by implementing more of HTML5
    • Get our HTML5 history API landed
    • Finish the off main thread parsing work
    • Speculative loading with the HTML5 parser
    • Evaluate what parts, if any, of HTML5 to implement next.
  • Electrolysis
    • JPW (cross process JS wrappers)
    • HTTP over IPC, details TBD
  • Improve performance
    • Staying on trace through same origin XOWs
    • Remove the XBL1 CSS based binding mechanism for non-displayed DOM nodes
    • Use our (almost) lock-free data structures for our main event queue
    • Optimize DOM child storage for performance
    • Minimize the number of XPCOM tearoffs we create from JS
  • General improvments
    • Work with the security team to get the ball rolling on a enablePrivilege() replacement
    • Improve our popup blocker to make users experience on the web friendlier.

JS

Accessibility

  • Event handling performance implementation (for DHTML)
    • Code reorganization
    • Implementation of throttling and/or delayed computation and/or smarter caching
    • Crashers
  • Fix keyboard support for HTML5 contentEditable
    • Add accessibility support for HTML controls inside of a contentEditable
  • Polish table/grid/treegrid accessibility
    • issues with some existing complex DHTML tables (e.g. dojo)
    • vendor reported issues

Multi-Process

  • Shippable multi-process Flash, windowed and windowless on Windows (and Linux)
  • Complete necko API revisions necessary to support multi-process networking
  • Usable prototype of Fennec running multi-process on Linux
  • Usable prototype of multi-process Flash on Mac OSX 10.6 (has external dependencies)
  • Completed gecko API changes necessary for multi-process session history and link targeting