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Stage Complete
Status Complete
Release target Firefox 13
Health OK
Status note Shipped preffed off in 11. Preffed on for upcoming 13.


Product manager `
Directly Responsible Individual Josh Aas
Lead engineer Pat McManus
Security lead Curtis Koenig
Privacy lead `
Localization lead `
Accessibility lead `
QA lead Ioana Budnar
UX lead `
Product marketing lead `
Operations lead `
Additional members `

Open issues/risks


Stage 1: Definition

1. Feature overview

SPDY is a transport protocol designed as a successor to HTTP as part of Google's make the web faster initiative. It is currently supported in google chrome, on most google web services, in the contendo and strangeloopnetworks CDNs, and will be used by the amazon silk tablet browser.

2. Users & use cases

Users of high latency environments such as mobile should be improved page load times for pages with many resources.

Casual browsing will be more secure with respect to eavesdropping.

Servers should see reduced load.

Independent low latency traffic should see reduced queuing delays.

3. Dependencies

Because all of SPDY runs on SSL, having SSL False Start done would be helpful:

Also requires NPN support:

4. Requirements

Interoperate with other spdy/2 implementations using high levels of concurrency.


SPDY over non-ssl.

Stage 2: Design

5. Functional specification

A SPDY implementation will wrap the existing HTTP implementation as a sort of in-browser proxy. This preserves all of the existing HTTP semantics and tools (e.g. firebug), while leveraging the on-the-wire benefits of SPDY.

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 Platform
Secondary roadmap `
Feature list Platform
Project Responsiveness
Engineering team Networking

Team status notes

  status notes
Products ` `
Engineering ` `
Security sec-review-complete Notes
Privacy ` `
Localization ` `
Accessibility ` `
Quality assurance Signed off Test Plan
User experience ` `
Product marketing ` `
Operations ` `