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Disable "You" Requires Restart

Addresses in the From/To/Cc headings are since Thunderbird 3 replaced with word "You" if they match any of your identities. This extension disables this function.

Rated 4 out of 5 stars (19)
16 users

Send and File Requires Restart

Allows to file outgoing messages in folder you prefer

Rated 5 out of 5 stars (20)
8 users

About:about Button

A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.

Rated 3 out of 5 stars (4)
4 users

Large Fonts Requires Restart

This add-on enables you to change the font size of the plain text editor of Thunderbird.

Rated 3 out of 5 stars (2)
2 users

NirvanaHQ Requires Restart

NirvanaHQ for Thunderbird

Rated 5 out of 5 stars (1)
0 users

Rikaichan Japanese-Russian Dictionary File Requires Restart

A dictionary file for Rikaichan.

Not yet rated
1 user

Add-on Preferences Button

Displays a menu that allows you to open the option/preference window for any add-on that has one.

Rated 5 out of 5 stars (3)
6 users

Extensor

Quick access to add-on functions from a toolbar panel: Options, (De)Activate, Details, Home page, Review page, Donation page, Uninstall, Restart application.

Rated 5 out of 5 stars (5)
2 users

Find Buttons

Adds buttons to open and manage the find bar.

Rated 3 out of 5 stars (2)
0 users

Play drums! Requires Restart

Just… play drums with your keyboard!

Rated 4 out of 5 stars (20)
0 users

3e Calendar Requires Restart

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
2 users

Hindi Pop up Requires Restart

After installing this extension, just hover the mouse on top of an English word and a pop-up will appear with suggestions of possible hindi equivalents.

Rated 5 out of 5 stars (3)
0 users

Keychain Services Integration Requires Restart

Store usernames and passwords in your Mac OS X Keychain.

Rated 4 out of 5 stars (92)
0 users

Moji Requires Restart

An integrated sidebar-dictionary for Japanese and Chinese including kanji dictionary.

Rated 4 out of 5 stars (9)
2 users

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
233 users

About Home Themer

Enables theming of the About:Home page by providing a simple redirect

Rated 5 out of 5 stars (2)
0 users

Enhanced Desktop Notifications

Provides enhanced new mail desktop notifications using the notify-send library. Linux only.

Rated 3 out of 5 stars (9)
24 users

Just Restart! Requires Restart

Restart application with Ctrl+Shift+Z.

Rated 5 out of 5 stars (7)
3 users

Flexible Identity Requires Restart

Selects an identity based on the recipients list when sending an email

Rated 4 out of 5 stars (39)
218 users

Greek Polytonic Spelling Checker

Διορθωτὴς πολυτονικῶν κειμένων σύμφωνος μὲ τὴν ἑλληνικὴ ἱστορικὴ ὀρθογραφία.

Rated 5 out of 5 stars (8)
21 users