Unable to download files in Windows 10 when Parental Controls are on
This article applies to Windows 10, Firefox 69 and Beta 70 only.</div>
There was a known issue in Firefox 69.0.2 and Beta 70.0b11+ that caused downloads to fail in Windows 10 when you had parental controls or content restrictions on.
We have released Firefox 69.0.3 in order to fix this problem, so if you're affected you should update Firefox to the latest version. Alternatively, you can work around this problem by turning off content restrictions by following the steps in this Microsoft support article.