1589753 - Telemetry for users who are clearing data on shutdown

Status: RESOLVED FIXED

(Toolkit :: Data Sanitization, enhancement, P1)

Description

[Erica Wright [:ewright]]

Data Sanitization often causes crashes on shutdown, primarily due to these prefs:

• privacy.sanitize.sanitizeOnShutdown
• privacy.clearOnShutdown.*
• cookie permissions being "Ci.nsICookiePermission.ACCESS_SESSION"

We should have telemetry on how many users have these prefs/settings set. As well, we should annotate the crash reports with this data.

Comment 1

[Johann Hofmann [:johannh]]

Should probably live in Data Sanitization :)

Comment 2

[Erica Wright [:ewright]]

Attachment: Bug 1589753 - Add telemetry for users clearing data on shutdown.

Comment 3

[Erica Wright [:ewright]]

Attachment: data-review

Comment 4

[Chris H-C :chutten]

Comment on attachment 9105636 [details]
data-review

DATA COLLECTION REVIEW RESPONSE:

    Is there or will there be documentation that describes the schema for the ultimate data set available publicly, complete and accurate?

Yes. This collection is Telemetry so is documented in its definitions file [Scalars.yaml](https://hg.mozilla.org/mozilla-central/file/tip/toolkit/components/telemetry/Scalars.yaml) and the [Probe Dictionary](https://telemetry.mozilla.org/probe-dictionary/).

    Is there a control mechanism that allows the user to turn the data collection on and off?

Yes. This collection is Telemetry so can be controlled through Firefox's Preferences.

    If the request is for permanent data collection, is there someone who will monitor the data over time?

No. This collection will expire in Firefox 76.

    Using the category system of data types on the Mozilla wiki, what collection type of data do the requested measurements fall under?

Category 1, Technical.

    Is the data collection request for default-on or default-off?

Default on for pre-release channels only.

    Does the instrumentation include the addition of any new identifiers?

No.

    Is the data collection covered by the existing Firefox privacy notice?

Yes.

    Does there need to be a check-in in the future to determine whether to renew the data?

Yes. :ewright is responsible for renewing or removing the collection before it expires in Firefox 76.

---
Result: datareview+

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/1f17d60de61e
Add telemetry for users clearing data on shutdown. r=johannh

Comment 6

[Razvan Maries]

https://hg.mozilla.org/mozilla-central/rev/1f17d60de61e