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Welcome to Mozilla's standards participation page.

Many at Mozilla participate in the development of open web standards, in a variety of different standards bodies. This is a directory of standards organizations (and sub-orgs like working groups) listing who at Mozilla is working with each. For a technology summary see the technologies page.

To encourage better web standards coordination and cross-pollination, the sections below are organized alphabetically by standards body, then alphabetically by working group (if any), then the list of Mozilla folks participating in that working group, optionally listing which particular specifications (or sections thereof) that they edit/author/contribute to.

If you actively directly communicate/participate with a standards body (working group email list, IRC, wiki, and/or f2f meetings), please add yourself (and the specific standards body / working group if any).

If you work in multiple working groups or with multiple standards organizations, list yourself in each, linking to your wiki User page.




Web Standards Coordination

General Participation Guidelines

If you'd like to participate in some of these groups, or at least watch, learn, get up to speed, you can almost always do so by lurking on the public IRC channels and mailing lists that the groups use. Many (most?) standards mailing lists can often be overwhelming in quantity, depth so start with IRC as that's often lighter-weight and easier to watch for quick bits of info/knowledge.

  • Follow the instructions on the IRC wiki page to:
    • Set yourself up with a nickname and connection to
  • Add a connection to (also with [x] SSL) where many standards discussions take place.
  • Add another connection to but specifically port 6665 (unprotected, no nickname registration).
  • See each standards section below for which IRC channel(s) tend(s) to be used by folks working in each group.

Orgless specs

Ecma International

  • dherman
  • Shu-Yu Guo
  • Zibi Braniecki
  • Allen Wirfs-Brock (Project Editor)

Specifications: ECMAScript 5, 5.1, 6, Harmony, etc.


ISOC Advisory Council

    • Adam Roach (:abr)
    • Tim Terriberry (:derf)

Internet Architecture Board (IAB)

  • Joe Hildebrand
  • Martin Thomson

Internet Engineering Steering Group (IESG)

  • Adam Roach (Applications and Real-Time Area)
  • Eric Rescorla (Security Area)

CALEXT (iCalendar)

  • Philipp Kewisch


  • Martin Thomson
  • Eric Rescorla
  • Patrick McManus
  • Adam Roach


  • lshapiro (Larissa Shapiro)


  • Pat McManus (WG chair)
  • Martin Thomson
  • Dragana Damjanovic


  • Adam Roach (:abr) - WG Chair
  • Timothy B. Terriberry (:derf)
  • Jean-Marc Valin (:jmspeex)
  • Nathan Egge

CODEC (Opus)

  • Jean-Marc Valin (:jmspeex)
  • Tim Terriberry (:derf)
  • Ralph Giles (:rillian)


  • Pat McManus
  • Martin Thomson
  • Eric Rescorla


  • Randell Jesup
  • Tim Terriberry
  • Ralph Giles
  • Adam Roach (:abr)
  • Eric Rescorla (EKR)
  • Martin Thomson
  • Maire Reavy


  • Eric Rescorla


  • Eric Rescorla


  • Martin Thomson
  • Eric Rescorla


  • Martin Thomson



  • Jeff Gilbert (:jgilbert)

microformats and microformats wiki

Community participants:


  • hCard - implemented in Firefox DOM
  • hCalendar - implemented in Firefox DOM
  • ... and many others.




The W3C (World Wide Web Consortium) has Working Groups (WGs), Interest Groups (IGs), and Community Groups (CGs). See below for details and please add any/all of such groups here in alphabetical order by working group name.

For the sake of focus and brevity, only W3C WGs are listed here inline, along with any complementary IGs or CGs that are paired with them.

For other W3C IGs or CGs not tied directly to an active WG, see:

Advisory Board

Elected member to the W3C Advisory Board.

Advisory Committee

See Advisory Committee Representative Directory for who else is an AC Rep from which companies.

Audio Incubator Group

  • Alistair MacDonald

Audio Working Group


  • Matthew Gregan
  • Paul Adenot
  • Ehsan Akhgari

Browser Testing and Tools Working Group



  • APIs for remote controlling web browsers
  • APIs for use in debugging of web applications

CSS Working Group

CSS (Cascading Style Sheets) Working Group (WG)

Working group members related to Mozilla (also on w3c-css-wg)

Additional www-style list participants related to Mozilla (anyone is welcome to join)

Specifications: CSS21, CSS3

See also: CSS on this wiki.

Geolocation Working Group

Geolocation Working Group (GEO)

  • ...

HTML Media Extensions Working Group

HTML Speech Incubator Group

  • David Bolter
  • Olli Pettay

Indie UI Events

  • David Bolter (monitoring)

Internationalization Activity (i18n)

  • ...

Media Fragments Working Group

  • Chris Double

Near Field Communications Working Group

W3C Near Field Communications (NFC) Working Group

  • No one from Mozilla is currently participating.

Want to participate? Please contact David Baron and Tantek.

Pointer Events Working Group


  • Olli Pettay
  • Matt Brubeck

Protocols and Formats Working Group

(Web Accessibility) Protocols and Formats Working Group (PF WG)

  • David Bolter

Second Screen Working Group


  • Bradford Lassey
  • Shih-Chiang Chien

Social Web Working Group

SocialWG -

Related incubator group: Social Web Incubator Community Group (SocialCG wiki)

SVG Working Group

SVG (Scalable Vector Graphics) Working Group

  • Cameron McCormack (co-chair)
  • Brian Birtles
  • Jonathan Watt

Specifications: SVG 1.1, SVG 2.0

Tracking Protection Working Group

  • Heather West

Technical Architecture Group


Web Applications Security Working Group

  • Eric Rescorla
  • Daniel Veditz
  • Francois Marier
  • Tanvi Vyas
  • Frederik Braun

Specifications: CSP, HSTS Priming, SRI, CORS (jointly with WebApps WG)

Web Assembly Working Group


WebAssembly Community Group

  • Luke Wagner
  • Dan Gohman
  • Alon Zakai
  • Benjamin Bouvier

Web Cryptography Working Group

Web Cryptography Working Group

Web Events Working Group

  • Matt Brubeck
  • Olli Pettay

Specifications: Touch Events

Formerly: Touch Events Community Group

WebFonts Working Group

  • Jonathan Kew (editor)
  • John Daggett

Web Hypertext Application Technology Community Group

Directly related to #WHATWG.

See also the complete list of participants.

Specifications: HTML living standard as developed by the WHATWG.

Web Media Text Tracks Community Group

  • Ralph Giles (:rillian)

Specifications: something WebVTT-ish, we hope.

Web Payments Task Force

Web Performance Working Group

  • Cameron McCormack
  • Kyle Simpson

Specifications: Timing control for script-based animations (requestAnimationFrame)

Web Platform Working Group

Primary work area:

Related incubator group: Web Platform Incubator Community Group

WebRTC Working Group

WebRTC (Web Real Time Communications) Working Group

  • Ralph Giles
  • Maire Reavy
  • Eric Rescorla (EKR)
  • Tim Terriberry
  • Adam Roach (:abr)
  • Randell Jesup (:jesup)

Specifications: Media capture & streaming APIs

  • Chia-hung Tai(:ctai)
  • Tzu-hao Kuo(:kaku)

Specifications: Media Capture Stream with Worker Extensions mediacapture-worker APIs


Web Hypertext Application Technologies Working Group -

Web Editing specification -


Alliance for Open Media

The Alliance for Open Media develops next-generation media formats, codecs, and technologies. See also #NETVC.

  • Timothy B. Terriberry (:derf)

CA/Browser Forum

The CA/Browser Forum produces standards in the area of best practice and validation for certificate authorities.


Mozilla is a member of CalConnect, The Calendaring and Scheduling Consortium, which is not actually affiliated w/ IETF or W3C but in practice drives development and interoperability testing of IETF specs:

See their Index to Calendaring and Scheduling Standards for other specific standards that CalConnect is involved with.


  • Mozilla point of contact: Gervase Markham
  • PKCS#11 working group: Brian Smith


Mozilla is not formally associated with the XSF but has representation indirectly.

  • no direct involvement by any current Mozillian


C++ is standardized by ISO/IEC JTC1/SC22/WG21 (informally, the "C++ Standards Committee"). All proposals are publically available here.

Botond Ballo is a member of Canada's delegation to the Committee, and has been attending meetings regularly since September 2013. If you have any feedback about any existing proposal, or would like to explore the idea of putting forth a new proposal, please post to dev-platform and cc Botond.


Main article: Standards/emeritus

See: Standards/emeritus for lists of former Mozillians who worked on standards, and former standards groups or organizations.

subpages of Standards

See Also

  • CSS
  • DOM
  • Events - which include web standards-related events.
  • SEO/Standards - how to use standards to improve/optimize search results
  • Standards/license - what license Mozilla prefers for standards specifications