Provider for Google Calendar 需要重新啟動
Allows bidirectional access to Google Calendar
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
Adds some tools to import and export folders and messages
Mail Redirect 需要重新啟動
允許重新導向 (亦稱為 "bounce") 郵件訊息至其他收件者。
Display Quota 需要重新啟動
This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...
DOM Inspector 需要重新啟動
DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
Add-on has now been discontinued, see below.
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.
Adds some options to print messages and addressbooks
Calendar Tweaks 需要重新啟動
Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
Empties the Trash and Junk folders, and compacts folders in multiple Thunderbird accounts.
As of Firefox 33, Venkman *no longer works*, as the APIs which it needs have been removed.
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.
MinimizeToTray revived 需要重新啟動
Minimizes windows into the system tray.
Add Signature 需要重新啟動
Simply add your signature manually (right mouse click) to your emails
IMAP Quota (Free Space) 需要重新啟動
This Thunderbird addon lets you customize the IMAP quota statusbar panel.
Google Keep for Thunderbird
Auto Compress File 需要重新啟動
Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).
Rise of the Tools 需要重新啟動
Moves the toolbar back above the tabbar.
Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.