Top-Rated Extensions


Find Preferences

Stores find service data in preferences so that it persists across restarts.

Rated 1 out of 5 stars (1)
37 users

Me Hincha No Restart

Ahora también podés decir todo lo que te hincha en Facebook!
Descargá tu botón ME HINCHA para utilizar en Facebook y contale a todos tus amigos que te hincha.
Únicamente disponible para Mozilla Firefox.

Rated 1 out of 5 stars (1)
1 user

GQueues Tab

This extension uses the new special tab features of Thunderbird 3 to open the GQueues to-do list manager inside a Thunderbird tab.

Rated 1 out of 5 stars (1)
22 users

Bulk List Filter

The Bulk List filter addon provides a set of preconfigured search folders for popular services such as Facebook, eBay, Amazon and more.

Rated 1 out of 5 stars (1)
24 users

Check Recipients

Checks the existence of email addresses of all recipients in Compose message window from local address books and LDAP directories.

Rated 1 out of 5 stars (1)
4 users


Sets Firefox/Thunderbird Locale to Windows (MUI) Language on startup

Rated 1 out of 5 stars (1)
185 users

Show SMTP Username

Displays username (if available) next to SMTP...

Rated 1 out of 5 stars (1)
59 users

Email signature for Thunderbird - WiseStamp

Switch Thunderbird email signatures. Supports Gmail, Yahoo, AOL & Outlook webmails. Youtube, Facebook, Twitter icons & more

Rated 1 out of 5 stars (1)
2,362 users

Verificador Ortográfico - Portuguese Dictionary

Selecione um texto em Português aparecer em qualquer página da web e obter uma verificação ortográfica para ele imediatamente!

Rated 1 out of 5 stars (1)
264 users

Russian Spelling Dictionary

Select a text in Russian appearing on any web page and get a spelling check for it immediately!

Not yet rated
1 user

ThunderStats! Your Thunderbird Statistics!

This addon adds awesome statistics to your beloved Thunderbird!

Not yet rated
18 users


This Extension lets you send Mails to both, first and second email address...

Not yet rated
8 users

Elegant Scrollbar Cursors No Restart

Display helpful, informative cursors for scrollbars.

Not yet rated
65 users

Toggle Folderpane View

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

Not yet rated
66 users



Not yet rated
114 users

Auto Zoomer

Keep a preset zoom level across thunderbird restarts.
Usefull on High DPI screens.

Not yet rated
57 users

Innovativa Group

Assists to setup a chat account for Innovativa Group

Not yet rated
1 user

Lightning Reminder Left Buttons

Tired to mistakenly press that "Dismiss All" button? Move the Lightining Reminder "Snooze all for" and "Dismiss All" buttons to the LEFT!
... and from version 2.0 you can keep them on the RIGHT, but swapped!

Not yet rated
106 users

IT Next Consultant

Assists to setup a chat account for IT Next Consultant, LLC.

Not yet rated
1 user


Assists to setup a chat account for
Where developers come to talk.

Not yet rated
2 users