How to add the Kaspersky Lab root certificate to the Mozilla Firefox or Thunderbird certificate storage

This article concerns:

• Kaspersky Anti-Virus
• Kaspersky Internet Security
• Kaspersky Total Security
• Kaspersky Security Cloud
• Kaspersky Small Office Security
• Kaspersky Free

With the help of the root certificate the Kaspersky Lab application deciphers and analyzes the encrypted traffic. The root certificate is added to the OS certificate storage upon the application installation. 

Mozilla Firefox and Thunderbird use their own certificate storage. To avoid errors related to the control of encrypted traffic, the Kaspersky Lab application reconfigures these applications to make them use not theirs storages but the system certificate storage as well. If you disable this option in the application settings, add the Kaspersky Lab root certificate to the Mozilla Firefox and Thunderbird certificate storage manually. Otherwise the applications will be unable to open HTTPS-pages. 

How to add the Kaspersky Lab root certificate to the Mozilla Firefox or Thunderbird certificate storage

How to reconfigure Mozilla Firefox and Thunderbird to make them use the system certificate storage