Rated 5 out of 5 stars

Από τον/την jeehan στις Αύγ. 17, 2012 · μόνιμος σύνδεσμος

i use this addon for years now and didn't want to miss it.
it is extremely useful if you have a large folder structure and use "copy sent to current" addon too. with ThreadVis it is always possible to retrace a mail thread.

only drawback i found: i found no way to disable ThreadVis on "Sent" folder