Mail notifications not working

Well the popup for unread items Email to me isnt working.
I open all my emails, but still 3 unread ?, even if i click them they stay as unread.

using firefox build 25.0.1

(i think its rather practical if the Email here works, so people can use it for project talks etc.
now people switch to other systems often gmail / hotmail etc, because its a bit poor experience Email overhere.

BTW it would also be nice if it got some upgrade, like shared projects; tasks sharing; shared to-do-'s; larger image support

This is a forum. If you want project management use a proper project management solution.
Larger image support ? Host your own large images

If you’re managing a project, perhaps making a group would be more appropriate.