Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826 When I enter a name/email in my address book, I typically put a prefix on certain display names for the company. I have seen many others, especially in Japan do this. But one problem is that this never agrees with what the individual uses in their own display name. So whenever I get email from them, the display name looks wrong. Even though it isnt, it loses the information I added, which is typically there so that I am careful about what I say to whom, especially outside my own company. The following is a suggestion for a feature that would solve this problem for me. Wherever there is a display name used for an email address, if the email address is the same as one in my "default" address book, then I would like to always see that display name rather than whatever may have come with the email itself. This mechanism needs to look thru the alternate email addresses (and we need N of them per address book entry, not just one) and map any of them to the desired display name, rather than just the main one. An option to do this would be very useful to me.

Related to Thunderbird bug 243631, Thunderbird bug 240138 comment 40 and/or Thunderbird bug 305499?

Yes, thanks for noticing this. In particular, I think what is described in bug #243631 covers this exactly. I have added a few comments to that bug. Im not sure whether to close this one or not since this is mozilla and that is TB. But if you are someone who knows that that bug would get rolled into moz, then go ahead and mark this as a dup of that. (Since that one seems to have more attention than this one.)

Can you reproduce with SeaMonkey 1.1.9 ?