3) In Firefox "Address bar"
Press Enter and click on "I accept the risk!" which will allow you to configure Firefox properly.
4) Search for "esni.enabled"
Double Click on it or right click and click "Toggle" which will enable "esni.enabled".
5) Search for "trr.mode"
Double click on it or right click and select Modify.
Set `network.trr.mode` to 1 to make DNS Over HTTPS. It will secure your connection and unlock all blocked domain names.
Enter 1 and Click OK!
set trr.mode to 1.
Note: Setting `network.trr.mode` to 2 to make DNS Over HTTPS the browser's first choice but use regular DNS as a fallback", 1 lets Firefox pick whichever is faster) Setting it to 1 is a good idea for now, It won't break other sites if they do not have this latest technology enabled and it will use the latest technology if the site has the capability of the latest technology..
6) Test your connection and It should be fully secured.
Click on: Check My Browser