Installation of certificate in IntelliJ IDEA
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עמוד ראשי > Security certificate > Installing certificate in JetBrains software EX: IntelliJ IDEA, PyCharm & WebStorm
Download NetFree Security certificate from http://netfree.link/netfree-ca.crt.
Open the settings window: File > Settings > Tools > Server Certificates
Click on the green plus and add the Provider's certificate from the downloaded file.

Although the image is IntelliJ, the instructions are the same as PyCharm and WebStrorm.