Reproduced the issue on Windows 10 x64 on latest Nightly, latest Beta 65.0b9 and Firefox Release 64. Recording of the issue: https://streamable.com/512fu
Bug 1392028 Comment 17 Edit History
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Reproduced the issue on Windows 10 x64 too on latest Nightly, latest Beta 65.0b9 and Firefox Release 64. Recording of the issue: https://streamable.com/512fu