Comment 16 for bug 810769

(In reply to Jonathan Protzenko [:protz] from comment #11)
> Do we have a bug on file for switching, UX-wise, to notification bars
> instead of modal popups that shout in your face? :) (That would be a nice
> subtask for the gsoc project proposal.)

Bug 255233 - Please make dialogs such as "Do you want to send unsent messages?" modeless instead of modal
Bug 564751 - Annoying alert messages coming on top of every others applications

and (some duping needed here)...
Bug 288896 - eliminate modal dialog window, move to activity manager entry, to avoid frequent interruptions by popup saying "Cannot move messages to folder <name> because another operation is in progress" [pop3]
Bug 271589 - password dialog popup accumulate if they are not cancel at once
Bug 724598 - Enhance failure mode on POP3 accounts

and the big monster
Bug 476696 - Activity Manager: Poptarts