Appearance and Customization

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Old-style smilies

Reverts the smilies in Thunderbird to those of version 2.

Rated 4 out of 5 stars (1)
2,322 users

Column Reader No Restart

Web reader for wide screens and long documents. Read with pleasure in one of many attractive layouts. NEW: Integrated image viewer with pan and zoom + Choice of replacement font. For Firefox 24.0 and newer.

Rated 5 out of 5 stars (5)
1,068 users

Zoom Button for Thunderbird

Zoom in, zoom out, and reset zoom with one toolbar button. Works in the Compose window too.

Rated 4 out of 5 stars (9)
2,675 users

Maximize Message Pane

Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window...

Rated 4 out of 5 stars (23)
4,077 users

New Tab Button

It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab

Rated 5 out of 5 stars (8)
2,156 users

Simple Timer

A timer/clock residing in the toolbar.

Rated 5 out of 5 stars (103)
15,120 users

Enhanced Priority Display

Enhanced thread pane display of message priorities.

Rated 5 out of 5 stars (5)
1,098 users

Color Transform No Restart

Adapt page colors to your taste or need. Save your favorite color scheme for automatic coloration. Comes with 18 predefined themes and 24 basic transforms for hue, saturation, lightness and opacity. For Firefox 24.0 and above.

Rated 4 out of 5 stars (7)
2,554 users

GNotifier No Restart

Add-on for Firefox and Thunderbird. Integrates Firefox's notifications with the OS's native notification system. It supports most Linux desktops and Windows 8.

Rated 5 out of 5 stars (37)
11,247 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)
667 users

ToggleFullHeaders

Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.

Not yet rated
81 users

Path Linker

メール本文中のファイルパスっぽいものをリンク化して関連付けで開けるようにします

Not yet rated
3 users

Sort and Search Customization Dialogs

Sort and search for buttons in (any) toolbar customization dialog

Rated 4 out of 5 stars (13)
529 users

SanRockstar

Music

Rated 5 out of 5 stars (3)
77 users

UI Text Overrider No Restart

Provides ability to override UI elements' label, tooltip text, etc.

Not yet rated
21 users

Toggle Folderpane View

This addon provides a toolbar button for toggling between the "All" and "Favorite" views in the folderpane.

Not yet rated
91 users

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)
266 users

Disable Addons

Disable Addons.

Rated 2 out of 5 stars (1)
5 users

Extra Format Buttons

Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.

Rated 5 out of 5 stars (1)
497 users

Menu On Top No Restart

Moves the Thunderbird menu bar to the top. Choose from a selection of visual styles.

It is convenient to have the menu on top of the tabs like Firefox; this is also a good area for placing "global" toolbar buttons like Navigation or get mail.

Rated 5 out of 5 stars (3)
913 users