How to Turn Off Cortana in Windows 10

Please Disable Tracking in Firefox so that my ad revenue and sharing widget are not blocked.  Thanks!

You can see a shield icon at the left end of the location/address bar when you are in private browsing mode that some content is blocked.
 Method 1
Left click the shield and click Disable Tracking.
Method 2
Disable this feature in "Options/Preferences > Privacy".

• Options/Preferences > Privacy: "Use Tracking Protection in Private Windows"

Method 1: Launch the Settings app and go to 

- Privacy

- Speech, inking, & typing

-Click on Stop getting to know me

Method 2: Launch Cortana  

- Click Settings button

- Under Cortana

- Slide the switch to the Off position.

All personal data that Cortana has collected on the device will be deleted. Data that was collected before hand on Cortana's Notebook will not be deleted.