It would be great to be able to add Messenger to the Spaces Toolbar by default within Thunderbird. Using an Microsoft Exchange-Account already Adds there the Microsoft Teams Button, Being able to Add the Web Apps of Slack, Telegram or something similar would be awesome. But that comes through the Add-on "Owl for Exchange
It would be great if it would be possible to just add certain Messenger (like Slack, Telegram, or Whats App) to the Spaces Toolbar. Maybe it would also be possible to integrate for some of the Messenger the APIs of them. But also it would be great to be able to just connect an Web App to the button.