Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.Tutup
Rated 5 out of 5 stars
This extension is awesome! I love it! Lots of people use Outlook (many clients do), and was a pain when they send me attachments. I used to have to tell them to upload it somewhere (until I found there is software for this).
But LookOut changes everything. Seriously, you cannot live without this one. LookOut is a lifesaver.