@Etienne, I see something similar although I don't use Thunderbird's filters. Your problem is probably covered in bug 1726116 where it is stated that Thunderbird doesn't send updates correctly.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/850229 Title: Unread email count in thunderbird shown wrongly in messaging menu and launcher icon To manage notifications about this bug go to: https://bugs.launchpad.net/messagingmenu-extension/+bug/850229/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
