ImportExportTools NG 需要重新啟動 精選
Adds tools to import/export messages and folders (NextGen)
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird
Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
Encrypt if possible 需要重新啟動
Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.
Grammar Checker 需要重新啟動 精選
Checks grammar using LanguageTool.
Duplicate Contacts Manager 需要重新啟動
This Thunderbird add-on searches address book(s) for pairs of matching contact entries.
It can automatically delete entries that have equivalent or less information than the other one.
Any remaining matches are presented for manual treatment.
Follow up for Thunderbird E-Mails. Lightning or other AddOns are not required. Set a reminder by adding a label or by context menu and let mailmindr remind you.
More information on updates and planned features at https://mailmindr.net/
BorderColors D 需要重新啟動
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.
URL Link 需要重新啟動
URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
Extension to manage acls/permissions for shared mailboxes/folders on imap servers.
Identity Chooser 需要重新啟動
Identity Chooser helps you to always use the correct identity when composing a new email.
Displays a small graphic visualising the context (thread) of the currently selected email.
This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.
Send Later Button 需要重新啟動 精選
A simple button to invoke the (already existing) send later functions.
Folder Account 需要重新啟動
Lets you associate user accounts and identities with specific folders. Great for multiple users who share TB, or for managing mailing lists.
ThunderHTMLedit 需要重新啟動 精選
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.
Phoenity Buttons 需要重新啟動
Adds some toolbar buttons using phoenity icons.
Displays message headers more compact (2 lines).
Windows Taskbar Unread Badge 需要重新啟動
Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.
LocalFolders 需要重新啟動 精選
Add as many local folders as you want to.
New folders can reside on mapped or network locations.
Works with both TB60 through TB68