How can I export Avast trusted CA on the Mac?

Avast Mac Security
1

This article tells how to export the CA using the Windows version of Avast: https://www.avast.com/faq.php?article=AVKB91#artTitle

The Mac version has an entirely different UI from what is described there. I can find no place in the Avast Mac UI that allows me to export the CA. But Thunderbird is now requiring it. :cry:

How do I export the Avast CA on a Mac?

2

There is no need to start a new thread.
Stay in the original one please.
https://forum.avast.com/index.php?topic=203517.msg1401862#msg1401862

3
There is no need to start a new thread. Stay in the original one please. https://forum.avast.com/index.php?topic=203517.msg1401862#msg1401862

Can we have an answer in either thread? Avast seemed like a good thing up until… right … about … now.
At which point it is starting to seem like a problem rather than a solution.