Alex_M

Hi, Today I had some free time to check this problem again. I resolved it by removing my email account and adding it back. Thanks for looking at this issue anyway.

Please see below the certificate.

Here are my current settings. I don't see Thunderbird here. Please let me know what I should click/do.

KTS/NETWOK SETTINGS/MOZILLA fIREFOX & THUNDERBIRD. Sorry, but I don't know what this is.

As I already mentioned, I have problem with Thunderbird, not Firefox. Please look at the screenshot I posted in my first message. It says "Application: Thunderbird" in that pop-up window.

Thanks, kmscom. I've just checked the article, but it doesn't say how to fix this for Thunderbird, but only for Firefox. Can you help me out?

Hi, I've just bought and installed Kaspersky Total Security on 3 computers and only on one of them I get some kind of problem with a certificate and my mail client Thunderbird. I get a pop-up window every time Windows starts. Please see the screenshot below. How can I fix this issue? Thanks in advance!