Thunderbird issues after updating Avast Antivirus

Issue: There are reported issues with Thunderbird, after a recent update to Avast antivirus software. Who is impacted? Thunderbird users who recently updated their Avast antivirus software. Why is this happening? A recent Avast update, seems to cause problems when it scans the Thunderbird Profile folder. For more information, see this post in the official Read More >