Up & Coming Extensions
Simple Locale Switcher Requires Restart
An easier management of the user interface language
Join-NG Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
Menu Wizard Requires Restart
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Quote Colors Requires Restart
Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
LookOut Requires Restart
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Highlighter Requires Restart
Quickly highlight some text in Thunderbird message composing windows.
MinimizeToTray revived Requires Restart
Minimizes windows into the system tray.
Automatically do Archive/Copy/Delete/Move actions based on user defined rules
Folderpane Tools Requires Restart
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
ImportExportTools Requires Restart
Adds some tools to import and export folders and messages
FireTray Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
Display Mail User Agent Requires Restart
Displays icon for user agent of received mails.
Header Tools Lite Requires Restart
Allows to modify the header and the source of messages
Mail Redirect Requires Restart
Allow to redirect (a.k.a. "remail") mail messages to other recipients.
SeaTab-X-2 Requires Restart
Adds Firefox-style tab closers into SeaMonkey.
Dorando keyconfig Requires Restart
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
MinimizeToTray Reanimated Requires Restart
MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
DOM Inspector Requires Restart
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.