Model met Firefox kunnen zien

Eenmalig

1. Open firefox
2. In the address bar type in about:config
3. You will see a message, warning that changing anything there may be harmful
4. Confirm that you accept the risk to proceed
5. A new page now opens where you can change Firefox configuration 
6. In the search bar at the top op this page type in privacy
7. Find this option in the filtered list privacy.file_unique_origin
8. Click it until it displays as false as per attached screenshot