Features/Desktop/64bit Firefox Windows 7

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Status

Add support for 64-bit Firefox Windows 7/Vista
Stage Definition
Status `
Release target `
Health OK
Status note `

{{#set:Feature name=Add support for 64-bit Firefox Windows 7/Vista

|Feature stage=Definition |Feature status=` |Feature version=` |Feature health=OK |Feature status note=` }}

Team

Product manager Asa Dotzler
Directly Responsible Individual `
Lead engineer `
Security lead `
Privacy lead `
Localization lead `
Accessibility lead `
QA lead Mihaela Velimiroviciu
UX lead `
Product marketing lead `
Operations lead `
Additional members `

{{#set:Feature product manager=Asa Dotzler

|Feature feature manager=` |Feature lead engineer=` |Feature security lead=` |Feature privacy lead=` |Feature localization lead=` |Feature accessibility lead=` |Feature qa lead=Mihaela Velimiroviciu |Feature ux lead=` |Feature product marketing lead=` |Feature operations lead=` |Feature additional members=` }}

Open issues/risks

  • Plug-in support will be a major issue here. We do not want users to have a worse view of 64-bit builds than they do of 32-bit.
  • Accessibility support will be an issue here. Some of the ATs inject their own DLL into Firefox's address space. That would break if they inject a 32-bit DLL into a 64-bit process.
  • Not sure what to do if users have both 32-bit and 64-bit Firefox installed

Stage 1: Definition

1. Feature overview

Offering a x86 64-bit Firefox to Windows 7 (and Vista) 64-bit users brings one immediate and major improvement. It would help dramatically with OOM crashes due to address space exhaustion. There are potential performance benefits as well -- especially in JavaScript land.

This feature falls primarily in the Experience category (from the "Discover, Experience, and Connect" vision statement.)

2. Users & use cases

Users with 64-bit Windows 7 (and Vista) can currently use Firefox 32-bit builds and that's what we offer them. But the 32-bit builds can only use part of the user's memory address space and so we are not taking full advantage of the user's platform capabilities.

3. Dependencies

  • Platform engineering resources are needed to implement running 32-bit plug-ins in 64-bit Firefox.
  • Rel Eng will need to update systems for build, automation, and updating.
  • QA will have one more platform to test.

4. Requirements

  • Coherent 32 bit plugin on 64-bit build experience
  • Build automation able to create 64 bit builds
  • QA automation able to test 64 and 32-bit builds
  • AUS changes to support 64 and 32-bit builds and updates
  • www.mozilla.com to offer 64-bit builds
  • Performance parity with 32-bit Firefox on Windows
  • Stability parity with 32-bit Firefox on Windows

Non-goals

  • We should not attempt support of 64-bit Windows XP (neither x86-64 nor Itanium)
  • We do not immediately need a stub installer or website magic to deliver 64-bit builds to 64-bit Windows users.
  • We do not need or expect memory use parity with 32-bit Firefox.
  • We do not intend to drop support for 32-bit Firefox.

Stage 2: Design

5. Functional specification

`

6. User experience design

`

Stage 3: Planning

7. Implementation plan

`

8. Reviews

Security review

`

Privacy review

`

Localization review

`

Accessibility

`

Quality Assurance review

`

Operations review

`

Stage 4: Development

9. Implementation

Stage 5: Release

10. Landing criteria

` {{#set:Feature open issues and risks=* Plug-in support will be a major issue here. We do not want users to have a worse view of 64-bit builds than they do of 32-bit.

  • Accessibility support will be an issue here. Some of the ATs inject their own DLL into Firefox's address space. That would break if they inject a 32-bit DLL into a 64-bit process.
  • Not sure what to do if users have both 32-bit and 64-bit Firefox installed

|Feature overview=Offering a x86 64-bit Firefox to Windows 7 (and Vista) 64-bit users brings one immediate and major improvement. It would help dramatically with OOM crashes due to address space exhaustion. There are potential performance benefits as well -- especially in JavaScript land.

This feature falls primarily in the Experience category (from the "Discover, Experience, and Connect" vision statement.) |Feature users and use cases=Users with 64-bit Windows 7 (and Vista) can currently use Firefox 32-bit builds and that's what we offer them. But the 32-bit builds can only use part of the user's memory address space and so we are not taking full advantage of the user's platform capabilities. |Feature dependencies=* Platform engineering resources are needed to implement running 32-bit plug-ins in 64-bit Firefox.

  • Rel Eng will need to update systems for build, automation, and updating.
  • QA will have one more platform to test.

|Feature requirements=* Coherent 32 bit plugin on 64-bit build experience

  • Build automation able to create 64 bit builds
  • QA automation able to test 64 and 32-bit builds
  • AUS changes to support 64 and 32-bit builds and updates
  • www.mozilla.com to offer 64-bit builds
  • Performance parity with 32-bit Firefox on Windows
  • Stability parity with 32-bit Firefox on Windows

|Feature non-goals=* We should not attempt support of 64-bit Windows XP (neither x86-64 nor Itanium)

  • We do not immediately need a stub installer or website magic to deliver 64-bit builds to 64-bit Windows users.
  • We do not need or expect memory use parity with 32-bit Firefox.
  • We do not intend to drop support for 32-bit Firefox.

|Feature functional spec=` |Feature ux design=` |Feature implementation plan=` |Feature security review=` |Feature privacy review=` |Feature localization review=` |Feature accessibility review=` |Feature qa review=` |Feature operations review=` |Feature implementation notes=* Rel Eng tracker: bug 558448

|Feature landing criteria=` }}

Feature details

Priority P2
Rank 999
Theme / Goal Experience
Roadmap Firefox Desktop
Secondary roadmap `
Feature list Desktop
Project `
Engineering team Plugins

{{#set:Feature priority=P2

|Feature rank=999 |Feature theme=Experience |Feature roadmap=Firefox Desktop |Feature secondary roadmap=` |Feature list=Desktop |Feature project=` |Feature engineering team=Plugins }}

Team status notes

  status notes
Products ` `
Engineering ` `
Security ` `
Privacy ` `
Localization ` `
Accessibility ` `
Quality assurance ` `
User experience ` `
Product marketing ` `
Operations ` `

{{#set:Feature products status=`

|Feature products notes=` |Feature engineering status=` |Feature engineering notes=` |Feature security status=` |Feature security health=` |Feature security notes=` |Feature privacy status=` |Feature privacy notes=` |Feature localization status=` |Feature localization notes=` |Feature accessibility status=` |Feature accessibility notes=` |Feature qa status=` |Feature qa notes=` |Feature ux status=` |Feature ux notes=` |Feature product marketing status=` |Feature product marketing notes=` |Feature operations status=` |Feature operations notes=` }}


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