Appearance and Customization

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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
85 users
Added February 9, 2014

Old Addon Manager

Brings back Firefox 3.x Addon Manager

Rated 5 out of 5 stars (1)
65 users
Added January 11, 2014

Switch Message Colour

Adds a Toolbar-Button to Thunderbird to switch between the mails' original colouring and your user defined colouring.

Not yet rated
366 users
Added January 10, 2014

ColumnsWizard

Adds some magic to the folder list columns!
With this addon you can:
* Add a custom column
* Set the default columns settings for any new folder.
* Show hidden columns in the Conversation Tab and in the search window.

Rated 5 out of 5 stars (3)
420 users
Added December 21, 2013

Windows Taskbar Unread Badge No Restart

Put an unread mail count badge on the Thunderbird icon in the Windows taskbar.

Rated 3 out of 5 stars (11)
872 users
Added December 16, 2013

Search as list

Search results appear as list (as per the "Open email as list" button).
- return to facet view with shift+close [x]
- auto open list view when few results found
- column config./sort/toggle [IMG3&4]
- apply columns to search as list menu [IMG5]

Rated 5 out of 5 stars (18)
837 users
Added December 9, 2013

Lightweight Themes Manager No Restart

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (6)
15,537 users
Added November 17, 2013

Menu Filter No Restart

Keep your menus in check by filtering out items you never use.

Rated 4 out of 5 stars (30)
2,569 users
Added November 11, 2013

Chat Notifier with Pop-Ups

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

Rated 3 out of 5 stars (3)
247 users
Added October 29, 2013

Simple Locale Switcher

An easier management of the user interface language

Rated 5 out of 5 stars (6)
10,112 users
Added September 6, 2013

TotalQuickFilter

Reboot the QuickFilter bar.

Rated 4 out of 5 stars (4)
321 users
Added August 13, 2013

Big Navigation No Restart

Increases the navigation links on the pages

Rated 5 out of 5 stars (4)
889 users
Added July 18, 2013

Posting Style Enforcer

Automatically converts top-posted messages to use bottom-positng or vice versa. Interleaved posts are left alone. Detects automatically added text and supports a per-contact list of exceptions.

Rated 5 out of 5 stars (3)
58 users
Added July 6, 2013

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)
874 users
Added June 9, 2013

Hide Local Folders

Removes the "Local Folders" entry from the folder pane.

Rated 4 out of 5 stars (15)
5,230 users
Added May 14, 2013

SanRockstar

Music

Rated 5 out of 5 stars (3)
72 users
Added May 8, 2013

Collapsed Unread

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

Rated 3 out of 5 stars (5)
621 users
Added May 5, 2013

Seturgent

Sets the urgent flag (X11) of the Thunderbird window under Linux in case of new messages. Does ignore special folders like Drafts, Junk and such.

Rated 5 out of 5 stars (2)
55 users
Added April 12, 2013

Stylish Tools

Quicker access to several Stylish features through a toolbar button and/or keyboard shortcuts. Available for Firefox, Thunderbird, and SeaMonkey

Rated 4 out of 5 stars (1)
1,184 users
Added April 3, 2013

OutlookAlike BETA

Makes Thunderbird looking like Outlook.

Rated 4 out of 5 stars (25)
4,366 users
Added March 3, 2013