Newest Extensions



The addon modifies the mail.imap.min_chunk_size_threshold preference value by setting it to 100000000.
It is a workaroud to bug 1216951

Not yet rated
9 users
Added November 18, 2015


A ThunderBird extension to prevent the use of the Bcc field.

Bcc is the worst thing ever.
It kills transparency inside an organization.
If you use the Bcc feature, you should ask yourself why..

Not yet rated
1 user
Added November 14, 2015

Hide Badge Icon

Hides the badge for new messages of the Thunderbird app icon on Mac OSX.

Not yet rated
1 user
Added November 8, 2015

Count Filters

This add-on provides various search filters couting values, such as total number of recipients, or number of lines, words,links in body message.

Not yet rated
6 users
Added November 6, 2015

Last Dictionary for Mail No Restart

This extension will remember the last dictionary used in the Mail Compose window and use it when composing new messages.

Not yet rated
6 users
Added October 19, 2015


Allows the user not to restore tabs at startup in Thundertbird

Not yet rated
11 users
Added October 18, 2015

Periodic Memory Usage Dumper No Restart

Saves memory usage information periodically (mainly for troubleshooting), for web/addon developers.

Not yet rated
8 users
Added October 15, 2015

KDE5 Wallet password integration

This extension enable passwords and form logins to be stored in KDE5 Wallet

Rated 5 out of 5 stars (2)
29 users
Added October 7, 2015

Contact DnD

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

Not yet rated
13 users
Added October 6, 2015

Pic Zoom

Zoom in and out of any image on a page

Not yet rated
23 users
Added October 1, 2015

Lightning Colors Reminder

Let's show the calendar color on Lightning reminders!

Not yet rated
361 users
Added September 30, 2015

Crash Me Now! (Simple) No Restart

Crash yourself with ease

Not yet rated
6 users
Added September 29, 2015

Disable About Something

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

Rated 5 out of 5 stars (1)
43 users
Added September 24, 2015

Path Explorer

Adds "Open with Explorer" to the message pane's right-click menu.

Not yet rated
9 users
Added September 23, 2015

ThunderBird Ticker

Extension for creating support tickets based on mail.

Not yet rated
7 users
Added September 10, 2015


convert session files of yamaha consoles, print channel lists and reports

Not yet rated
1 user
Added September 7, 2015


Tools for Meyersound's MAPPonline

Not yet rated
3 users
Added September 7, 2015

Copy Reminder List To Clipboard No Restart

Provides button to copy the list of current reminders to the clipboard.

Not yet rated
26 users
Added September 2, 2015

Todo.txt Extension

Thunderbird extension for the Todo.txt application

Not yet rated
90 users
Added September 2, 2015

Dictionary for recipient No Restart

Sets the spell check dictionary based on the first recipient

Not yet rated
50 users
Added August 25, 2015