Comment 39 for bug 850229

Bug still exists with Thunderbird v45.3.0 on 16.04 .. but recently i discovered some solution : when clicking the envelop icon in the Ubuntu notification bar (upper right, next to the clock) and then clicking the inbox(es) in its menu, the little number at the Thunderbird launch icon disappears ! So, i don't have to close and re-open Thunderbird anymore, however, this is a workaround, not a real solution .. but maybe this will lead to a real fix ..