Appearance and Customization

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Address Widget Lines

Address Widget Lines provides the ability to select the number of address lines to display in the message compose window.

Rated 5 out of 5 stars (15)
614 users

Before Tabs Toolbar

Adds a toolbar before the tabs.

Rated 5 out of 5 stars (5)
418 users

Big Navigation No Restart

Increases the navigation links on the pages

Rated 5 out of 5 stars (4)
434 users

Chat Notifier with Pop-Ups

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

Rated 3 out of 5 stars (3)
176 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)
717 users

Color Folders

Color your Folder Treeview Icons!

Rated 4 out of 5 stars (86)
17,092 users

Color Transform No Restart

Adapt page colors to your taste or need. Save your favorite color scheme for automatic coloration of newly opened web pages. With 18 predefined themes and 24 basic transforms for hue, saturation, lightness and opacity.

Rated 4 out of 5 stars (12)
1,520 users

ColumnCV

This addon is not currently developed, please use ColumnsWizard instead.

A Thunderbird extension that shows hidden columns in the Conversation View.

Rated 5 out of 5 stars (2)
2 users

ColumnsWizard

A Thunderbird extension that shows hidden columns in the Conversation Tab and in Search Results.
From version 3.0 is also possible to add Custom Columns not originally present in Thunderbird.

Rated 5 out of 5 stars (2)
139 users

Disable about:config

Disable about:config feature of Firefox and Thunderbird.

Not yet rated
41 users

Disable Addons

Disable Addons.

Not yet rated
1 user

Dstocks

Displays stock market indices in the status bar.
Delay of updates on option (default : every 10 mn) or on click.
Right-clic to choose your indice and to see the other ones.

Rated 5 out of 5 stars (2)
250 users

Dybutar No Restart

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

Rated 5 out of 5 stars (4)
121 users

Element Inspector No Restart

Shift-RightClick any element to open it in DOM Inspector.

Rated 5 out of 5 stars (14)
1,709 users

Enhanced Priority Display

Enhanced thread pane display of message priorities.

Rated 5 out of 5 stars (5)
718 users

Extensor No Restart

Toolbar panel with large icons for direct access to common actions for extensions, plugins and themes. Quickly access options, activation, uninstallation, application restart, details, home pages, review pages and donation pages.

Rated 5 out of 5 stars (4)
233 users

Firesizer

Allows you to resize the window to specific dimensions.

Rated 4 out of 5 stars (114)
36,492 users

G-Hub Lite

Adds Google Tabs to Thunderbird. Services include Voice, Calendar, Drive (Docs), Contacts, Groups, News, Books, Play, Maps, Sites, Finance, Picasa, Plus. Need Google Apps? Check out G-Hub Pro: http://www.schiffner.com/index.php/software/g-hub-pro

Rated 3 out of 5 stars (16)
3,220 users

globalChrome.css

Provides global user stylesheet.

Not yet rated
64 users

Hide C. Titlebar Plus Lite

* "Maximize your content space by configuring Title-bar & floating main-menu".
* Configurable "Thunderbird" application-main-button at top-left corner!, like Firefox's one. (see sshots)
* "Close Current Tab"! as configurable Close-button action.

Rated 5 out of 5 stars (12)
679 users