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

Latest update: December 12, 2022 ID: 14620
 
 
 
 

This article concerns:

  • Kaspersky Basic, Standard, Plus, Premium
  • Kaspersky Anti-Virus
  • Kaspersky Internet Security
  • Kaspersky Total Security
  • Kaspersky Security Cloud
  • Kaspersky Small Office Security
  • Kaspersky Free
 
 
 
 

With the help of a root certificate the browsers check the security and authenticity of websites. The root certificate also allows to decipher data transmitted between a website and the user's browser.

The majority of third-party applications and browsers use the root certificates from the OS certificate storage. For example, Google Chrome. Some apps use their own certificate storage. For instance, Firefox and Thunderbird.

The Kaspersky root certificate is added to the OS certificate storage upon a Kaspersky application installation. To avoid errors related to the control of encrypted traffic, the Kaspersky application reconfigures Firefox and Thunderbird to make them use the system certificate storage. Thus, before establishing a connection to a website, a browser verifies the website’s security and authenticity using the certificates from the OS certificate storage.

If the browser uses the Mozilla certificate storage, you should add the Kaspersky root certificate to this certificate storage manually. See the guide below. Otherwise the browser will be unable to open HTTPS-pages.

 
 
 
 

How to add the Kaspersky 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

 
 
 
 
 
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