I ran thunderbird for the first time in a long time today and noticed it occasionally shows black bubbles. Screenshot attached.
Created attachment 429132 [details]
The blackened bubble
This is the screenshot.
Nifty! Jan, please take a look here.
It apparently shows those bubbles every time i hit the 'n' key.
It's going to be fixed in next release (3.1.1), see .
*** Bug 614136 has been marked as a duplicate of this bug. ***