<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><blockquote type="cite"><div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><div style="font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica, Arial, sans-serif; font-size: 12pt; "><div><span style="font-size: 12pt; ">2. Number of FxAccounts that touch the fxa-auth-server database per day</span></div>If I understand correctly, this would be an under count, as users may be "using" their account (syncing, whatnot) but their device doesn't have to reattach every day, so fx-auth-server doesn't "see" the user.<br></div></div></div></blockquote><div><br></div><div>Or track token server unique users per day, under the assumption that all FxA users are currently using Sync.</div><div><br></div><br><blockquote type="cite"><div><div style="font-family: 'times new roman', 'new york', times, serif; font-size: 12pt; "><div style="font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica, Arial, sans-serif; font-size: 12pt; ">4. Telemetry from devices (FxOS, Android, Desktop, js-client-library)<br>I don't think we're going to get telemetry from FxOS any time soon, for example, so it would be nice if we could get a reasonable measure without it.<br></div></div></div></blockquote><div><br></div><div>We're tracking inclusion of FxA Sync usage in FHR:</div><div><br></div><div>Desktop: <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=958561">https://bugzilla.mozilla.org/show_bug.cgi?id=958561</a></div><div>Android: <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=891600">https://bugzilla.mozilla.org/show_bug.cgi?id=891600</a></div><div><br></div><div>(+ gps, bsmedberg)</div><div><br></div><div>That's probably the most directly useful metric, because it allows for an intersection between “device is talking to FxA” and “user is an active user”. (But bear in mind orphaning work etc.)</div></div><div><br></div>The desktop work is directly applicable to FxOS, last I checked.<div><br><div>Telemetry wouldn't be much use for this, because the telemetry population isn't directly representative of the much larger GA.</div></div></body></html>