Appearance and Customization

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about:config Button No Restart

Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.

Rated 5 out of 5 stars (3)
2,789 users

Add-ons Manager - Version Number No Restart

Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (17)
1,210 users

All Menus Button No Restart

Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.

Rated 5 out of 5 stars (5)
1,941 users

Auto Zoomer

Keep a preset zoom level across thunderbird restarts.
Usefull on High DPI screens.

Rated 5 out of 5 stars (2)
237 users

Before Tabs Toolbar

Adds a toolbar before the tabs.

Rated 5 out of 5 stars (7)
431 users

Big Navigation No Restart

enlarging the navigation links on the pages

Rated 5 out of 5 stars (6)
856 users

Chat Notifier with Pop-Ups

Allows to be notified when you receive chat message in Thunderbird.

Rated 3 out of 5 stars (3)
196 users

Classic Pop-up Alerts No Restart

This addon returns the old view of the pop-up notifications, as in Firefox 4.0 - 43.0

Not yet rated
232 users

Close last tab with middle-click No Restart

THIS ADD-ON IS NOW UNNECESSARY FOR FIREFOX 31 AND UP!

Tired of middle-clicking on the last tab in Thunderbird, only to have nothing happen? This add-on embraces the industry-standard middle-click behavior of IE, Chrome, and Firefox (3.6- and 31+).

Rated 5 out of 5 stars (3)
204 users

Collapsed Unread

Shows unread email count for collapsed folders even if the unread mails are in subfolders.

Rated 3 out of 5 stars (5)
597 users

Color Folders

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (129)
27,692 users

Color Transform No Restart

Adapt page or element colors to your taste or need. Save your favorite color scheme for automatic coloration of all web content. Comes with 18 predefined themes and 24 basic transforms for hue, saturation, lightness and opacity.

Rated 3 out of 5 stars (12)
2,857 users

Colorific No Restart

Colorize entire web pages with 28 themes that transform hue, saturation, lightness and opacity. NEW: Edit themes using sliders and drag-and-drop. NEW: Black-list & white-list web domains for automatic coloration with specific themes.

Rated 4 out of 5 stars (7)
1,687 users

Column Reader No Restart

Web reader for wide screens and long documents. Read with pleasure in attractive layouts. NEW: Integrated image viewer with pan and zoom. NEW: Choice of replacement font. NEW: Support for multi-process Firefox.

Rated 5 out of 5 stars (11)
967 users

ColumnsWizard

Adds some magic to the mesasges list columns!
With this addon you can:
* Add a custom column
* Set the default columns for any new folder.
* Show hidden columns in the Conversation Tab.
* Edit a mail header value for a single message.

Rated 5 out of 5 stars (3)
933 users

Contact DnD

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

Not yet rated
12 users

Customizable LDAP AddressBook Auto Complete

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

Not yet rated
613 users

CuteButtons - Crystal SVG

Adds colourful icons and animations to buttons and menus

Rated 4 out of 5 stars (95)
7,649 users

Date on Thunderbird

在thunderbird statusbar显示年月日

Rated 4 out of 5 stars (1)
22 users

Disable About Something

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

Rated 5 out of 5 stars (1)
352 users