Send Later Requires Restart
True "Send Later" functionality to schedule the time for sending an email.
DL for Thunderbird Requires Restart
Allows to convert large attachments to links automatically without 3rd party providers.
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
ThunderHTMLedit Requires Restart
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
CategoryManager Requires Restart
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
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.
Shrunked Image Resizer Requires Restart
Make your photos smaller, so they don't take forever to email.
Mail Merge Requires Restart Featured
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.
Reply to Multiple Messages Requires Restart
Add menu commands for replying to multiple messages at the same time.
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
Uploads your large attachments to your Box instead of sending them by email.
Send Later Button Requires Restart
A simple button to invoke the (already existing) send later functions.
Theme Quedox adventure. Mas información en la siguiente url. https://cruzdavid.com.
Flex Confirm Mail Requires Restart
Confirm mail address and attachments based on flexible rules.
AutoCopy_rebirth Requires Restart
Lightweight add-on that automatically copies any highlighted text to clipboard.
ReplyWithHeader Requires Restart
Outlook style headers and few goodies for Thunderbird & Postbox.
Stop Ignoring Reply:To Requires Restart
Default "Reply" functionality pays attention to "Reply-To" in original email
Emoji Requires Restart
Add emojis to your e-mails.
Address bulk copy （アドレス一括コピー） Requires Restart
Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。