Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Tutup
Great! Rated 4 out of 5 stars
It's a great extension but it has a problem interfering with bookmarklets, so beware. But otherwise, it does a great job overall. Keeps you save, and the icon is at just the right size, unlike some other extensions I know...*cough*siteadvisor*cough*..er..um...yeah, so anyway, this extension is great.