Hello Jess, I looked in the code for what the value of that attribute means. It holds the value of this function here: https://dxr.mozilla.org/mozilla-central/rev/c2593a3058afdfeaac5c990e18794ee8257afe99/mobile/android/services/src/main/java/org/mozilla/gecko/fxa/FirefoxAccounts.java#35 Returns true if a FirefoxAccount exists, false otherwise. We can conclude that it returns true only if the user has a Firefox Account and hasn't succesfully synced to another device. However, signing in Fennec with your Firefox Account will trigger a sync (after you verify your e-mail and if you have signed on another device previously at least once), but we do not track the event when the sync has finished sucesfully.
Bug 1369442 Comment 6 Edit History
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Hello Jess, I investigated what the value of that attribute means. It holds the value of this function here: https://dxr.mozilla.org/mozilla-central/rev/c2593a3058afdfeaac5c990e18794ee8257afe99/mobile/android/services/src/main/java/org/mozilla/gecko/fxa/FirefoxAccounts.java#35 Returns true if a FirefoxAccount exists, false otherwise. However, signing in Fennec with your Firefox Account will trigger a sync (after you verify your e-mail and if you have signed on another device previously at least once), but we do not track the event when the sync has finished sucesfully.