Appearance and Customization
Contact DnD Requires Restart
Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.
Customizable LDAP AddressBook Auto Complete Requires Restart
Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.
This add-on offers ui tweaks to improve Thunderbirds appearance (squared tabs, custom tab height, alternative Add-on Manager appearance, compact main toolbars and more). v2.1.0+ for Tb52-62+
Adds icons to buttons and/or menus.
Date on Thunderbird Requires Restart
Disable About Something Requires Restart
Provides ability to disable "about:*" pages by the configuration.
Disable about:config Requires Restart
Disable about:config feature of Firefox and Thunderbird.
Disable DragAndDrop (Thunderbird) Requires Restart
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.
Dynamic creation of bookmark-style toolbar buttons which you can customize.
In the DOM Inspector,quickly navigate to the any elements
Email Addresses in Message Headers Requires Restart
Shows email addresses in message headers, including those of contacts, and provides control over message header presentation.
Enhanced Priority Display Requires Restart
Enhanced thread pane display of message priorities.
Quick access to add-on functions from a toolbar panel: Options, (De)Activate, Details, Home page, Review page, Donation page, Uninstall, Restart application.
Extra Format Buttons Requires Restart
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
Firesizer Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
Force Hide Message Pane Requires Restart
Force hide message pane at startup.
G-Hub Lite Requires Restart
Add Google Tabs to Thunderbird! Google services supported by G-Hub Lite: Calendar, Contacts, Drive, Docs, Sheets, Slides, Maps, Search, & Voice. Need G Suite / Google Apps? Check out G-Hub Pro: https://www.schiffner.com/index.php/software/g-hub-pro
Get/Send-Button Requires Restart
Extends the original "Get" button (optionally) to "Get/Send" and adds a popup menu with additional functions.
You may want to use it together with the following Add-ons:
* Send Later Button (by me / Alexander Ihrig)
* Send Later (by jikamens)
globalChrome.css Requires Restart
Provides global user stylesheet.
Add-on for Thunderbird that replaces the built-in notifications with OS native ones. It supports most Linux Desktop Environments as well as Windows 8.1/10.