Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Close
Rated 5 out of 5 stars
This plug-in is why I don't use Chrome or Safari.
Edit line 48 of "install.rdf" of Shadow912's modified version.
Seems to work fine for me on ff3.5.
PS. Shadow's version is here (english second on page):