Development discontinued. More info here
Documentation & support
Bugs
To send a bug report use github.
Future improvements
Check the issue tracker for planned features.
How does it work?
After installing, the unread drafts are not highlighted as new mail, so no more notifications!
In the addon preference window you can also choose to set as read all the drafts you wrote.
It's up to you to choose you preferred behaviour.
Thanks to BabelZilla for the translation support.
Image courtesy of "Iconshock".