Rated 4 out of 5 stars

le Jason Maas ar Aib. 11, 2008 · buan-nasc

It does seem to work well and basically as advertised (using TB v2.0.0.12 on Ubuntu 7.10). The only that seems unintuitive to me is that when there is only a single match then what you've typed so far stays red and unchanged until you press Tab or Enter, which is the same behavior as when there are no matches.

I'm fairly new to Thunderbird and was dismayed to discover that it only supports a single LDAP server for a given lookup, so this extension saved the day for me!