Technitium DNS Server
This server supports encrypted DNS protocol (DNS-over-HTTPS) that you can use with your web browser like Mozilla Firefox.
The Encrypted DNS Service URL
Use the following URL to configure your clients for consuming the DNS-over-HTTPS service.
Mozilla Firefox Configuration
To configure Firefox, go to Options > General and scroll down to find Network Settings. Click on the Settings button, find the DNS-over-HTTPS option at the bottom (as shown below), and use the encrypted DNS service URL given above.
Note! This will work only for Firefox and all other applications on your computer will keep using the default DNS server configured in your network settings.