Why is decrypting Mozilla secure encrypted traffic in the KTS default settings?

[Brown pirate]

Hello,

As it is, it looks ugly. The suspicion arises that someone cares to know the encrypted content sent by Mozilla.
If the traffic is secure and encrypted, why is KTS decrypting this traffic? 

 

Seems like a serious invasion of privacy by KTS not dictated by the security of the KTA User (Customer), Mozilla.
Please promotion my postulate by Kasperski Community.
I greet,

2. P.