I caught Windows Defender "automatic sample submission" silently uploading places.sqlite out of my Firefox directory despite the assurance in the control panel

I caught Windows Defender "automatic sample submission" silently uploading places.sqlite out of my Firefox directory despite the assurance in the control panel that "We'll prompt you if the file we need is likely to contain personal information". So now I disable automatic sample submission via group policy but Microsoft definitely can and will access files that they really have no business accessing.