This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
True "Send Later" functionality to schedule the time for sending an email.
Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!
Add symbol in header plane to switch between compact and expanded view. Options to switch between one or two lines compact view, which buttons should be displayed in header pane. Linkify RSS subject. Optionally darkens header if message has focus.
Extracts all attachments from selected messages and then can delete, detach or mark-read.
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.
Collapse and expand quotes. Please see the extension homepage for...
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.
Select all the mails in a directory sent by the selected authors.
Looks up the origin country and city of an e-mail message, using the IP address.
Inspect the DOM of HTML, XUL, and XML pages, including the mail...