Retention measurement

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Status

Retention measurement
Stage	Feature Inbox
Status	In progress
Release target	Firefox 9
Health	OK
Status note	`

Team

Product manager	Saptarshi Guha
Directly Responsible Individual	Saptarshi Guha
Lead engineer	`
Security lead	`
Privacy lead	`
Localization lead	`
Accessibility lead	`
QA lead	`
UX lead	`
Product marketing lead	`
Operations lead	`
Additional members	Blake Cutler, Chris Jung, Dave Townsend

Open issues/risks

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Stage 1: Definition

1. Feature overview

This feature adds the profile creation date to the Blocklist ping. We will use this data point to estimate aggregate retention across Firefox versions, OS, locale, and geography.

We want to know the date when a user first tries Firefox; we think that the profile creation date is a good proxy for this. We are open to suggestions of better or easier to implement proxies.

For the first 63 days, the exact profile creation date is reported back. After 63 days, the data sent is a default value e.g. 0.

2. Users & use cases

Users: consumers of product dashboards (e.g. nightly reports and rapid release reports). With this new measurement, we can track retention across versions e.g. 50% of new users who downloaded FF 8 still use it after 10 days vs 47% of new users who downloaded FF7. The trends give us an measure of the adoption and retention rates across versions, locales and OS.

3. Dependencies

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4. Requirements

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Non-goals

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Stage 2: Design

5. Functional specification

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6. User experience design

NA

Stage 3: Planning

7. Implementation plan

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8. Reviews

Security review

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Privacy review

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Localization review

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Accessibility

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Quality Assurance review

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Operations review

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Stage 4: Development

9. Implementation

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Stage 5: Release

10. Landing criteria

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Feature details

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

Team status notes

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

This didn't belong to a roadmap so I added it to Desktop. It obviously can apply to other products but for now I'm happy to keep an eye on it. If someone else wants this on their roadmap, feel free to move and re-prioritize. I'm not greedy :-) - Asa