I don't know if this is serious enough to uplift this late; this bug has been there since the launch of Windows 8 and never been reported until now, and ESR users are less likely to be running the uninstaller GUI at all.
Bug 1553433 Comment 7 Edit History
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I don't know if this is serious enough to uplift this late; this bug has been there since the launch of Windows 8 and never been reported until now, and ESR users are less likely to be running the uninstaller GUI at all. I'd be on board with adding this to 68.1 or 68.2 though.