For #17553: renew storage.stats metrics.

[mcomella]

Request for Data Collection Renewal

** This form is for the renewal of an existing, reviewed data collection.**

** All questions are mandatory.
You must receive Data Review from a
Data Steward
on a filled-out Request before shipping your renewed data collection.**

1. Provide a link to the initial Data Collection Review Request for this collection.

#12876 (comment)

2. When will this collection now expire?

2021-08-01 (extended 6 months)

3. Why was the initial period of collection insufficient?

We didn't have resources to do the SQL to analyze the data. This is now more practical with GLAM and ownership over installed size may be on a larger audience (the fenix team + perf rather than just perf)

Pull Request checklist

• Tests: This PR includes thorough tests or an explanation of why it does not
• Screenshots: This PR includes screenshots or GIFs of the changes made or an explanation of why it does not
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features. In addition, it includes a screenshot of a successful accessibility scan to ensure no new defects are added to the product.

To download an APK when reviewing a PR:

1. click on Show All Checks,
2. click Details next to "Taskcluster (pull_request)" after it appears and then finishes with a green checkmark,
3. click on the "Fenix - assemble" task, then click "Run Artifacts".
4. the APK links should be on the left side of the screen, named for each CPU architecture

[boek]

Data Collection Renewal Review (to be filled by Data Stewards)

Is the provided Data Collection Review complete, correct, and data-review+ by a Data Steward?
Yes

Is the data collection covered by the existing Firefox Privacy Notice?
Yes

[csadilek]

@Mergifyio backport releases_v86.0.0

[mergify]

Command backport releases_v86.0.0: success

Backports have been created

• #17745 For #17553: renew storage.stats metrics. (bp #17704) has been created for branch releases_v86.0.0