Security Certificate

I hope someone can help me remedy this issue. Do I need to locate and delete a certificate? If so I would appreciate help in doing that. I had Kaspersky antivirus installed on a computer, but I uninstalled it and purchased Bitdefender Total Security. In Bitdefender/Notifications/Critical I am getting this message…

Suspicious connection blocked
Feature: Online Threat Prevention

"firefox.exe attempted to establish a connection relying on an unmatching security certificate to kaspersky.com.data.adobedc.net. We blocked the connection to keep your data safe since the used certificate was issued for a different web address than the targeted one."

Can someone explain this and a fix? Thank you!