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Touch Events part 2: Multitouch
Stage Development
Status In progress
Release target Firefox 10
Health OK
Status note Patches in progress.


Product manager Thomas Arend
Directly Responsible Individual Matt Brubeck (mbrubeck)
Lead engineer Wes Johnston (wesj)
Security lead `
Privacy lead `
Localization lead `
Accessibility lead `
QA lead Cami Urian [Cami irc]
UX lead `
Product marketing lead `
Operations lead `
Additional members `

Open issues/risks


Stage 1: Definition

1. Feature overview

Touch Events part 1 exposed single-touch events to web content.

Touch Events part 2 will extend that to expose multi-touch events to Fennec chrome and web content. This will allow authors to build web pages that interact with multiple touch points at once. It will also be useful in Fennec chrome for implementing multi-touch gestures in JavaScript.

2. Users & use cases

  • Expose multi-touch events (multiple simultaneous touch events) to content in Fennec.
  • Compatibility with existing web content.
  • Conformance with the W3C Touch Events editor's draft, including new attributes like radius/force/angle where available.
  • Compatibility with a common subset of Safari/Opera functionality.
  • Use touch events to implement gestures in Fennec chrome JavaScript.

3. Dependencies


4. Requirements

  • No visible performance regressions.
  • UI gestures (e.g. pinch zoom) still work unless pages deliberately prevent them.


  • 100% compatibility with Safari or other browsers.
  • Enable W3C touch events in desktop Firefox (will be done in future versions).
  • Defining new gestures - will be done separately in Fennec/Features/gestures.
  • Exposing gesture events to web content.

Stage 2: Design

5. Functional specification


6. User experience design


Stage 3: Planning

7. Implementation plan


8. Reviews

Security review


Privacy review


Localization review




Quality Assurance review


Operations review


Stage 4: Development

9. Implementation

Stage 5: Release

10. Landing criteria


Feature details

Priority P1
Rank 999
Theme / Goal `
Roadmap Firefox Mobile
Secondary roadmap `
Feature list Mobile
Project `
Engineering team Mobile platform

Team status notes

  status notes
Products ` `
Engineering ` `
Security sec-review-needed imelven
Privacy ` `
Localization ` `
Accessibility ` `
Quality assurance ` `
User experience ` `
Product marketing ` `
Operations ` `