It would be great to have better integration with the Gnome desktop. Email accounts, calendar and contacts added to Gnome should be automatically picked up by Thunderbird.
This would be fine as long as it's an optional integration. Making Thunderbird dependent on Gnome and their horrible UI would not be a good idea (Gnome is not the only desktop around).
I fully support this idea. Remember Thunderbird is still the default email app in Ubuntu (one of the most popular Linux distributions). I would therefore suggest
- Gnome Online Accounts integration (Calendar, Email, Contacts) - Headless start at startup (integration with gnome's background apps in Quick Settings) - Integration with evolution-ews (for MS Exchange support under Linux) - An optional Libadwaita theme for GNOME users