I don't know if this is germane to your problem, however, take a look at Post #8 at this site:
http://forums.mozillazine.org/viewtopic ... &t=2380721
and look at the links.
James wrote:Well... I believe I have resolved the problem. Evidently (at least I think) it had to do with Lastpass.
Well... at least it's resolved to my satisfaction.
James wrote:Yes, it has. The domain now showing is my mail box. The reason there were no domain names showing before was, as mentioned previously, my giving everything over to Lastpass and forbidding SM's password manager to handle anything including the mail portion of the program.