Bug 1496075 Comment 57 Edit History

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I think the minimal set of changes is:
- from [TelemetryEnvironments addon listeners](https://searchfox.org/mozilla-central/rev/b2d35912da5b2acecb0274eb113777d344ffb75e/toolkit/components/telemetry/app/TelemetryEnvironment.jsm#612):
- check that an addon `isBuiltin`
- pass a signal for "do not trigger environment-change" down to `_checkForChanges()`

Are you able to test this out?
Or should we follow up with a patch in a separate bug early next week?

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