Comment 66 for bug 956618

(In reply to yanlu from comment #60)
> I have a quite large email adress book : 525 "collected adresses" and 15000
> "personnal adresses". Thunderbird is badly impacted with the TB31 email autocompletion behaviour :
> - it sometimes does not lead to any result and leaves the input without autocompleting it.
> - it sometimes require to type allmost the whole email before the
> autocompletion gives a result
> - it sometimes leads to bad results.

Seems fixed in TB 31.1.1 with https://bugzilla.mozilla.org/show_bug.cgi?id=984875 fix.