View source for Privacy/Reviews/Telemetry/Measurements

__NOTOC__
As [[Platform/Features/Telemetry|Telemetry]] matures and we add more types of data we want to measure, it is important to keep track of what we're gathering and how we're respecting users' privacy.  This page lists all of the types of data collected and links to any risk analysis done for the specific measurements.

The current list of histograms collected is in [http://mxr.mozilla.org/mozilla-central/source/toolkit/components/telemetry/TelemetryHistograms.h toolkit/components/telemetry/TelemetryHistograms.h]

Instead of full reviews on each major type of measurement, a lightweight risk analysis should be performed to quickly document the question each measurement answers as well as actions taken to minimize privacy risks.

==Histograms==
Histograms that are collected by telemetry are listed in [http://mxr.mozilla.org/mozilla-central/source/toolkit/components/telemetry/TelemetryHistograms.h TelemetryHistograms.h], and ones that have review are also listed in the table below.

== Relevant Strings ==
Privacy Policy: [http://www.mozilla.com/en-US/legal/privacy/firefox.html#telemetry http://www.mozilla.com/en-US/legal/privacy/firefox.html#telemetry]

''Opt-in strings:''
; 7-8 : Would you like to help improve Firefox by automatically reporting memory usage, performance, and responsiveness to Mozilla? ([https://hg.mozilla.org/mozilla-central/rev/2efc1f37ce92#l3.16 link to patch])
; 9+ : Will you help improve Firefox by sending anonymous information about performance, hardware characteristics, feature usage, and browser customizations to Mozilla? ([https://hg.mozilla.org/mozilla-central/rev/cf6245609f48#l2.16 link to patch])

== Measurements flagged for Review  ==

Data that's being collected potentially has privacy implications and ''must'' undergo a quick risk analysis. These measurements are listed below including any outcomes from the risk analysis. 

[[Privacy/Reviews/Telemetry/Measurement Template|Get the lightweight-review template here]] 

=== Undeployed (Not yet in Nightly/Aurora/Beta/Release) ===
{| class="wikitable sortable"
|-
! Not yet deployed Measurement 
! Review Status 
! Data Format Sample
! Notes
|-
| Layers backend
| {{resolved|in bug}}
| ("Direct3D 9" "Direct3D 10" "OpenGL" "Basic")
| {{bug|721785}}
|-
| Add telemetry for startup crash detection
| {{resolved|covered by opt-in}}
|
| {{bug|723802}}
|-
| [[Privacy/Reviews/Telemetry/SSL_Certificates_And_Errors|SSL Certificates and Errors]]
| {{#lst:Privacy/Reviews/Telemetry/SSL_Certificates_And_Errors|state}}
|
| {{bug|707275}} - not yet landed
|-
| [[Privacy/Reviews/Telemetry/Encountered Plugin Types|Encountered Plugin Types]] 
| {{#lst:Privacy/Reviews/Telemetry/Encountered Plugin Types|state}} 
|
| not yet landed
|-
| [[Privacy/Reviews/Telemetry/Profile Age|Profile Age]] 
| {{#lst:Privacy/Reviews/Telemetry/Profile Age|state}} 
|
| not yet landed
|-
| [[Privacy/Reviews/Telemetry/Default Browser Status|Default Browser Status]] 
| {{#lst:Privacy/Reviews/Telemetry/Default Browser Status|state}} 
|
| {{bug|679938}} - not yet landed
|-
| Mutation Event Listener Count
| {{resolved|not needed}}
| two counters
| {{bug|694033}} - window instance count and portion with MELs
|-
| Image decode count (# of encoded images per tab)
| {{resolved|}}
|
| {{bug|684091}}
|-
| createTopLevelWindow - timing
| {{resolved|not needed}}
|
| {{bug|686435}}
|-
| cpuid Data - (list of capabilities)
| {{resolved|in bug}}
|
| {{bug|684038}}
|-
| screen and window sizes
| {{resolved|in bug}}
|
| {{bug|683071}} (no patch yet)
|-
| slow prepared statements (sqlite)
| {{resolved|in bug}}
| SQL prepared statements (without user data, [https://bug699051.bugzilla.mozilla.org/attachment.cgi?id=576021 just the structure])
| {{bug|699051}}
|}

<br>

=== Deployed (In Nightly/Aurora/Beta/Release) ===

{| class="wikitable sortable"
|-
! Deployed Measurement 
! Data format/sample 
! Review Status 
! Train/Release
! Notes
|-
| Character Encoding menu used
| flag
|
| 22
| {{bug|840476}}
|-
| Character Encoding menu use situation
| enumeration of usage situations (labeled page, unlabeled page, local file or not, etc.)
|
| 22
| {{bug|840476}}
|-
| Multipart XHR Usage
| boolean
|{{resolved|will determine fate of feature}}
| 
| {{bug|701361}}
|-
| gfx hardware info
| "adapterDescription":"", "adapterVendorID":"0x1002", "adapterDeviceID":"0x944a", "adapterRAM":"", "adapterDriver":"", "adapterDriverVersion":"", "adapterDriverDate":""
| {{resolved|needed for gfx regressions}}
| 12 ([https://hg.mozilla.org/integration/mozilla-inbound/rev/e29b78989aeb patch])
| {{bug|706340}}
|-
| info.reason 
| "idle-daily" 
| {{resolved|not needed}} 
| 7
| It's always the same string
|-
| info.OS 
| "Darwin" 
| {{resolved|not needed}}
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| Short string (in UA)
|-
| info.appID 
| GUID identifier 
| {{resolved|not needed}} 
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| -
|-
| info.locale
| application locale (e.g., "en-US")
| {{resolved|not needed}}
| 7 ([http://hg.mozilla.org/mozilla-central/rev/0ac4818e5b4b patch])
| -
|-
| info.appName 
| "Firefox" 
| {{resolved|not needed}} 
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| (in UA)
|-
| info.appVersion 
| "7.0" 
| {{resolved|not needed}} 
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| (in UA)
|-
| info.appBuildID 
| "20110624030724" 
| {{resolved|not needed}}
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| Identifies date/time of build
|-
| info.platformBuildID 
| "20110624030724" 
| {{resolved|not needed}}
| 7 ([http://hg.mozilla.org/mozilla-central/rev/998d4edbf4b3 patch])
| ''same as appBuildID''
|-
| info.cpucount 
| "2" 
| {{resolved|not needed}} 
| 7
| number of cores, etc.
|-
| info.memsize 
| "2922"
| {{resolved|not needed}} 
| 7
| RAM in megabytes<br>
|-
| info.arch 
| "x86-64" 
| {{resolved|not needed}} 
| 7
| cpu architecture
|-
| info.version 
| "11.0.0" 
| {{resolved|not needed}} 
| 7
| os version (in UA)
|-
| info.device 
| "N810" 
| {{resolved|not needed}} 
| 7
| present on mobile only
|-
| info.manufacturer 
| "Nokia"
| {{resolved|not needed}} 
| 7
| present on mobile only
|-
| info.hardware 
| "smdkc210" 
| {{resolved|not needed}} 
| 7
| Android hardware description (mfr code-name)
|-
| info.persona 
| "336461" (integer ID) 
| {{resolved|opt-in adjusted for 9}} 
| 9
| Present when a persona is enabled
|-
| info.addons 
| name/GUID/version of installed addons 
| {{resolved|opt-in adjusted for 9}} 
| 9
| Always present
|-
| simpleMeasurements.uptime 
| "22"
| {{resolved|not needed}} 
| 7
| application uptime in minutes
|-
| simpleMeasurements.main 
| "1000"
| {{resolved|not needed}}
| 7
| milliseconds from startup in main()
|-
| simpleMeasurements.firstPaint
| "2000"
| {{resolved|not needed}} 
| 7
| milliseconds from startup to first paint
|-
| simpleMasurements.sessionRestored 
| "3000"
| {{resolved|not needed}} 
| 7
| milliseconds from startup to session restore
|-
| simpleMeasurements.js.e4x 
| "0"
| {{resolved|opt-in adjusted for 9}}  
| 8 ([http://hg.mozilla.org/mozilla-central/rev/ba19e1cd3f91 patch])
| number of e4x objects created since browser startup
|-
| simpleMeasurements.js.setProto 
| "0"
| {{resolved|opt-in adjusted for 9}}   
| 8 ([http://hg.mozilla.org/mozilla-central/rev/ba19e1cd3f91 patch])
| number of times the __proto__ property has been set
|-
| simpleMeasurements.js.customIter 
| "0"
| {{resolved|opt-in adjusted for 9}}  
| 8 ([http://hg.mozilla.org/mozilla-central/rev/ba19e1cd3f91 patch])
| number of times a custom __iterator__ was used
|}

[[Category:Privacy/Reviews|TelemetryMeasurements]]