Appearance and Customization

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ConfirmConversionsAtSelecting

[Notification] : : As of June 21st 2021, automated browserAction popup was fixed.

Confirm conversions of e-mail to event and task at selecting thread tree children.

Glory be to God!

Not yet rated
0 users

Contact DnD Requires Restart

Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.

Not yet rated
1 user

Customizable LDAP AddressBook Auto Complete Requires Restart

Provides (restores) customizability of auto complete items for LDAP addressbook items, and more features.

Rated 5 out of 5 stars (2)
0 users

CuteButtons

Adds icons to buttons and/or menus.

Rated 4 out of 5 stars (95)
65 users

Dark Plain Text

Use dark mode styling when reading plain text emails with a dark theme.

Rated 5 out of 5 stars (1)
463 users

Dark Reader

Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.

Rated 4 out of 5 stars (36)
9,578 users

Darko

Simple dark mode (theme) for your Thunderbird messages.

FastAddons.com/#darko

Rated 5 out of 5 stars (30)
4,054 users

Date on Thunderbird Requires Restart

在thunderbird statusbar显示年月日

Rated 4 out of 5 stars (1)
0 users

DeepDark for Thunderbird Requires Restart

Dark mode for Thunderbird UI

Rated 5 out of 5 stars (44)
119 users

Delete Trash Button Requires Restart

Adds an Empty Deleted button to the Toolbar

Rated 4 out of 5 stars (10)
119 users

DetachAttachment - Attachment clipper, Extractor Requires Restart

This addon provides functionality of bulk delete attachments of selected messages.
Delete-command is added to the messages' context menu.

Rated 5 out of 5 stars (1)
12 users

DevTools Button

Adds a DevTools Button, opens the Developer Toolbox

Not yet rated
564 users

Disable About Something Requires Restart

Provides ability to disable "about:*" pages by the configuration.

Rated 5 out of 5 stars (2)
0 users

Disable about:config Requires Restart

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
0 users

Disable DragAndDrop (for Thunderbird 68+)

Disable drag and drop on the folder tree in order to prevent unintended folder movement.

Rated 5 out of 5 stars (17)
3,186 users

Disable DragAndDrop (Thunderbird) Requires Restart

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

Rated 5 out of 5 stars (19)
78 users

DontRestoreTabsRevival

This is a remake of the DontRestoreTabs extension. It is compatible with Thunderbird 88+. The code is based on the tabControl extension.

Rated 5 out of 5 stars (3)
7 users

Dropbox Paper

How Does It Work?
Once you install the add-on, a new icon will appear in the Thunderbird toolbar. Simply click on the icon, and it will open the Dropbox Paper tab.

Will the Dropbox Paper Add-on Collect My Data?
Never.

Not yet rated
41 users

Dybutar

Dynamic creation of bookmark-style toolbar buttons which you can customize.

Rated 5 out of 5 stars (12)
8 users

Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
11 users