Add-ons
Appearance and Customization
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Toggle Quotes (Collapse Quotes)
Adds a Toggle Quotes button, allows to collapse quotes.
Compact Headers
Search Button
Toolbar button to invoke message search dialog window.
userChromeJS
Load the contents of chrome/userChrome.js from the user's profile directory every time a window is opened. Also add a toolbar button which reloads userChrome.js in the current window.
Strikethrough Button
Adds a strikethrough toggle button to the Thunderbird compose toolbar. As this is an extension, it is not an integrated component of the Thunderbird toolbar. That is why it sits at the far right on the toolbar and not next to the B/I/U buttons.
Auto Profile Picture
Upgrade your Thunderbird experience with intelligent and clearer sender visualization that transforms how you identify and manage emails — making email management smoother and more intuitive.
PrintingTools NG
PrintingTools NG enables many layout and formatting options for printing messages with header borders, sorting, attachment lists etc. PDF output can be auto named and Page options can ease printer settings.
It is your printing toolbox.
Minimize on Close
Causes Thunderbird's main window to minimize instead of closing. You can still close Thunderbird through the menu.
Date Time Formatter
Shows relative date-time in the column.
Note: you need to click "Select columns to display" and then -> "Relative Date/Time"
Lightning Calendar Tabs
Displays tabs which allows quick navigation between time periods in Lightning calendar. All views of calendar are supported. Color of tab texts can be adjusted.
Birdbox
Phoenity Icons
Add-on Compatibility Check
Checks all installed add-ons for compatibility with Thunderbird ESR (yearly updates) and Thunderbird Release (monthly updates).
Full Address Column
Adds a full sender and recipient e-mail column to message list panel.
Disable DragAndDrop (New)
Disable drag and drop on the folder tree in order to prevent unintended folder movement.
Thunder Sign Editor
Thunder Sign Editor ✍️
Visual signature editor for Thunderbird (WYSIWYG)
Thunder Sign Editor is a lightweight Thunderbird extension that lets you visually design, copy, and apply email signatures to any of your Thunderbird identities.
Quick Spaces
Makes it possible to add custom addresses to the spaces toolbar
changeQuote
It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.
Calendar/Project Tools: Gantt-/Year View, Planner
*Display Gantt View and Year View
*Task Time Planning: daily, distribute your open tasks into open time slots.
*Show parent/child relationships for tasks
Mahoor-Iranian-Date
This add-on adds a new column called "Persian Date" in recent versions in message list containing Iranian Date.
It is reimplementation of Iranian date for Thunderbird 78+ and 115+. The source is based on Full address column by Łukasz Kosson.
To create your own collections, you must have a Mozilla Add-ons account.
