Add-ons
Most Popular See all »
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Causes Thunderbird's main window to minimize instead of closing. You can still close Thunderbird through the menu.39,829 users -
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.24,655 users -
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.23,788 users -
Checks all installed add-ons for compatibility with Thunderbird ESR (yearly updates) and Thunderbird Release (monthly updates).14,944 users
Top Rated See all »
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Removes the 'Local Folders' entry from the folder pane.
(The folder itself will stay existent.)
(Based on the original work of Alex Cabal.)967 users -
Makes search results sort by "date" instead of "relevance" by default.759 users -
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.51 users -
Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.0 users -
Updated version of David Winter's Close Tab on Escape, ported to be compatible with Thunderbird 68 and later.17 users
Recently Added See all »
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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.4 users -
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.40 users -
Open a Google search browser window in Thunderbird from the context menu24 users -
Print the current webpage from the context menu34 users -
New UNEC is a browser extension that transforms the UNEC student panel into a modern and user-friendly interface. It dynamically replaces the existing webpage’s HTML, CSS, and JS with an improved design, featuring automatic dark mode, language.25 users -
Press F9, or your favourite shortcut, to toggle the visibility of the Folder Pane84 users
See all 287 extensions in Appearance and Customization »
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