Initial release

Download the executable and run it to install (includes all the required files). Or, download the extension separately as well and manually set up as described at https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/Native_messaging

• Supports native Windows 10 notifications for incoming mails
• Persistent notifications, ability to launch Thunderbird from notification
• Support for Thunderbird 78+
• Rich customization
• Easy install and uninstall process
• Free, libre, open source software

Tested only on x64, so only x64 binaries are provided.

Update 28/08/2021: Changed executable so it listens on loopback interface only (prevents abuse from other computers in your LAN).