לעברית לחצו כאן
The following instructions are valid for all Debian based Linux distributions, (including: Ubuntu, Mint, Raspbian, Kali, elementary OS and more)
Open the command line.
Run the following command:
curl -sL http://netfree.link/dl/ubuntuCertInstallNetFree.sh | sudo -E bash -
Sometimes the command will fail due to the fact that
curl isn't installed, and it will give a message:
Command 'curl' not found
To fix this, enter the command:
sudo apt install curl
Then rerun the previous command.
It is recommended that you restart the computer after this.
P.S. To install the certificate you need root permission