If you don’t like Mark snooping around in your stuff they point out ...
Too personal? Switch off!
Finally, coming back around the microphone and Facebook’s listening capabilities, if you are not happy about Facebook’s tactics and want to stop Facebook accessing to your microphone, you can switch it off. See the following steps:
Good advice - but have you ever noticed that depite switching it off, the settings 'don't stick'? Well they do actually - it is just that Facebook keeps messing around with privacy settign as at the backend - and when they do - guess what? The defaults are restored and Facebook's defaults are 'reset to snoop'.
Glad I am not there.