1929651 - Fix Windows (MSIX) `isFirstStartup` (similar to `isFirstRun`) targeting

Status: NEW

(Toolkit :: Background Tasks, enhancement)

Description

[Nick Alexander :nalexander [he/him]]

We just discovered that isFirstStartup is never true for MSIX installs, and that trips people up. This ticket tracks addressing that, although I don't have a technical path to address that at this time. In particular, from a Slack conversation: "So for first run we evaluate all the experiments on disk, which would be none here b/c the installer didn’t run to download them. So no enrollments, then onboarding shows, then we sync again, only then would this experiment be able to enroll, but it’ll be too late then."

Comment 1

[Nick Alexander :nalexander [he/him]]

See also https://bugzilla.mozilla.org/show_bug.cgi?id=1867871#c3 for some of the confusion arising here.