Uploads your large attachments to your Box instead of sending them by email.
AutoCopy_rebirth Requires Restart
Lightweight add-on that automatically copies any highlighted text to clipboard.
Use BCC Instead C Requires Restart
This is a version of 'Use BCC Instead' updated for Thunderbird 64 and above.
It prevents you accidentally sending an email to a large number of recipients without hiding their addresses from each other by using BCC.
Expands address book lists to recipients addresses in the compose window
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
BorderColors D Requires Restart
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
EasyRight2Left Requires Restart
Change direction from Left to Right and Right to Left for Persian, Arabic, Hebrew etc. This Thunderbird extension is based on ComposeRTF available in https://addons.thunderbird.net/en-US/thunderbird/addon/composertf/
Asciidoctor for Thunderbird Requires Restart
Type some text in your mail's body, hit the asciidoctor button and transform your mail into a pretty html5 asciidoctor document. Font awesome and code highlighting are enabled.
Copiar Assunto Requires Restart
Adiciona um botão para copiar o Assunto do email selecionado para a área de transferência
Add a button to copy the Subject line of the selected email to the clipboard
Stop Ignoring Reply:To Requires Restart
Default "Reply" functionality pays attention to "Reply-To" in original email
Reply to Multiple Messages Requires Restart
Add menu commands for replying to multiple messages at the same time.
One-by-One Forward Requires Restart
Highlight multiple emails, right-click, then select "One-by-One Forward". This extension will allow you to forward the selected emails, one-by-one, to the recipients you specify using your choice of attachment handling.
Copy Message ID Requires Restart
Adds a button to the message view toolbar to copy the message ID to the clipboard. This is useful when sending email replies via the command line.
Edit Message Encoding Fallback Requires Restart
Fallback to a safe encoding, if you are replying to a message with unsupported encoding like UTF-16LE. (workaround for the Bug 961983)
New Thread To All Requires Restart
If you always have the same email recipient lists for your projects, this button may be the right thing for you.
It creates a new mail compose window with to, cc, bcc filled with names from the currently viewed email, but empty body, subject.
Attach from Clipboard Requires Restart
Create file attachments directly from the system clipboard.
Reply As Original Recipient Requires Restart
Reply with the From: field set to the To: field from the original email.
Reply To All Reminder Requires Restart
Asks for confirmation when "Reply" instead of "Reply to All" is pressed on an email with multiple recipients.
SMTP Switch Reborn Requires Restart