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Allow Empty Subject
Requires Restart
Allows Thunderbird to send message without a subject.
Visit my Allow Empty Subject site for recent versions and news.
ConfirmFolderMove
Requires Restart
Introduces a preference that allows users to be prompted before moving folders.
Follow Up
Gravatars
Requires Restart
Show a column with the Gravatar-picture and sender-name in email folders.
Customizable LDAP AddressBook Auto Complete
Requires Restart
Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.
Disable about:config
Requires Restart
Disable about:config feature of Firefox and Thunderbird.
Path Linker
MiniWebView Sidebar
Requires Restart
Sidebar that shows a single web page. This allows Thunderbird to be augmented with any user-supplied or third-party web page. The screenshot shows an example - I use my own custom web page to present my Google Calendar in my preferred format.
SavedSearchInSubFolders
Requires Restart
This addon allows virtual folders (saved searches) to automatically process all subfolders of their selected target folders.
The search targets are updated automatically whenever a new folder is added, or a virtual folder is updated.
Jabberpresence
Requires Restart
This extension has the purpose to verify the presence (online status) of your Jabber IM contacts. Users can add their Jabber accounts (Tools->Jabber Account Setting). A new panel is added in the bottom-left corner, listing contacts presence...
Fit Images
Requires Restart
Fit large images to window when viewing a message.
Control how you want to fit images: by width, height or both.
Last Dictionary for Mail
This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.
Count Filters
Requires Restart
This add-on provides various search filters couting values, such as total number of recipients, or number of lines, words,links in body message.
DSN Settings 2
Requires Restart
Adds user interface settings for Delivery Status Notification (DSN) requests. This addon is useful for settings for Delivery Notification request and better experience with Notification Viewer addon.
Notification Viewer
Requires Restart
Identifies and displays the status of pending and received notifications (DSN, MDN) for messages sent with notification requests. To get full experience with this addon, don't forget to use DSN settings and MDN extended addons too.
SanRockstar
Print Preview Button and Keyboard Shortcut
Requires Restart
Adds a "Print Preview" button to the customize toolbar in Firefox.
Binds the Ctrl+Alt-Shift+P keyboard shortcut to Print Preview.
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