How to minimize Mozilla Thunderbird to tray, even if FireTray extension no longer supports current version

The developer of the FireTray for Thunderbird extension no longer releases updates and it’s not compatible with the current version of Thunderbird. However, to keep Thunderbird from hanging constantly in the taskbar, there is a way to install this extension.

Here’s how to do it (correct for other extensions, but you have to do it at your own risk, not the fact that everything will work properly and without any harm):

Continue reading How to minimize Mozilla Thunderbird to tray, even if FireTray extension no longer supports current version