Install the certificate Kaspersky Lab. manually into the browser.
1) For Google Chrome
To do this, locate the certificate on the computer by c: \ ProgramData \ Kaspersky \ AVP18.0.0 \ Data \ Cert \ (fake) Kaspersky Anti-Virus Personal Root Certificate.cer, and then in the Settings -> Advanced settings, in the HTTPS section / SSL, click the Configure Certificates button.
To install the certificate, click on the "Trusted Root Certification Authorities" tab and click the "Import ..." button
2) For Mozilla Firefox
In the Mozilla Firefox menu (at the top right - three horizontal lines) click "Settings - Additional - View certificates - Certification authorities". Then click "Import", in the opened window select the file "C: \ ProgramData \ Kaspersky Lab \ AVP18.0.0 \ Data \ Cert \ (fake) Kaspersky Anti-Virus Personal Root Certificate.cer). Install it by checking the "Trust when checking sites" checkbox.