Install collection #1: for designed, timed, personalized bulk mailing you need extra: Mail Tweak; #2 for address book data mining you need extra: Seek and MoreFunctionsForAddressBook; #3 nice reading.
Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.
Display birthdays from the Thunderbird addressbooks as events in Lightning.
Removes comment, display name automatically from addresses before sending mail.
Automatically fill your address books or send mass mails with e-mail addresses extracted from all your e-mails.
Displays a small graphic visualising the context (thread) of the currently selected email.
It is a Theme of the Mac Leopard-style which did iLeopard in a model.
This Add-on allows to have HTML temporarily allowed in the currently displayed message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (if this is your default mode).
Collapse and expand quotes. Please see the extension homepage for...
MagicSLR extends functions and buttons to get and send messages. Many users missed a combined "Get/Send" button in Thunderbird. MagicSLR provides this button and more.
This add-on provides a few new ways to keep Thunderbird clean.
Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window...
Thunderbird Extension: AutoSend Unsent Messages. Flushes entire outbox at regular intervals.
Adds two columns to the list of mails. One shows an indicator wether a mail is incoming or outgoing, the other shows the sender or the recipient of the mail respectively...
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