Tietoja tästä lisäosasta
Obviously a message should have appeared on at least one mailing list that is monitored by Gmane.
This should come handy if you want to refer to a public discussion that you had in past: things you posted, things posted in reply, entire threads. Gmane web interface is very convenient.
This is my first mozilla extension, so I am sure that there is a lot of room for improvements.
The idea and core logic are rather trivial, but integration in Thunderbird UI can be improved.
So, any help is very welcome!