Newest Extensions



SJCall is a beta version of a VoIP extension enabling you to place telephone calls directly from the Mozilla applications using SJphone, the world-leading Internet softphone...

Rated 4 out of 5 stars (3)
19 users
Added May 19, 2006

Indic IME

Indic IME toolbar facilitates typing in Indian Languages in web pages...

Rated 4 out of 5 stars (5)
5 users
Added May 15, 2006

Orb VideoMail

Toolbar button for creating videomails OF ANY LENGTH right from within Thunderbird. This is videomail freed from attachments!

Not yet rated
7 users
Added May 14, 2006

Copy Sent to Current

Allows to place a copy of sent messages (aka FCC) into the currently active folder or any other folder you choose, when you create the message. Usually the copies are placed into the 'Sent' folder. For replies, you may also move the original message.

Rated 4 out of 5 stars (62)
4,112 users
Added May 13, 2006

Sieve No Restart

This Extension implements the ManageSieve protocol for securely managing Sieve Script on a remote IMAP server...

Rated 4 out of 5 stars (24)
12,718 users
Added May 10, 2006

Addressbooks Synchronizer

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

Rated 4 out of 5 stars (57)
44,704 users
Added May 9, 2006


The primary goal of the Mnenhy project is to make some enhancements to SeaMonkey MailNews/Thunderbird, since there're still plenty of comfort functions missing if compared to Netscape 4.x and other mail and news clients.

Rated 4 out of 5 stars (37)
4,054 users
Added May 6, 2006

Duplicate Contact Manager

Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.

Rated 3 out of 5 stars (95)
28,276 users
Added May 4, 2006


Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.

Rated 5 out of 5 stars (144)
10,983 users
Added May 1, 2006

Thunderbird Message Filter Import/Export

Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.

Rated 3 out of 5 stars (67)
10,028 users
Added April 28, 2006


Japanese to English/German/French/Russian dictionary. Just hover the mouse on top of a word, and a popup appears. Automatically de-inflects verbs and adjectives. Detailed kanji view...

Rated 5 out of 5 stars (89)
51,505 users
Added April 27, 2006

FoxyProxy Standard

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Rated 4 out of 5 stars (346)
328,967 users
Added April 26, 2006


TryAgain keeps trying to load a webpage when the server cannot be reached.

Rated 4 out of 5 stars (64)
7,236 users
Added April 26, 2006

More Tools Menu

Unclutter the "Tools" menu by moving new items to a "More Tools" menu.

Rated 5 out of 5 stars (36)
7,282 users
Added April 19, 2006

Get before Send

Get messages for the account which is bound to the identity then send the message when you click the toolbar button or the menu item. If your SMTP sever authenticates using POP(IMAP) before SMTP, the extension is useful.

Rated 5 out of 5 stars (2)
1,392 users
Added April 15, 2006

Toolbar Buttons No Restart

Adds toolbar buttons to the customize toolbar window in several programs including Firefox, Thunderbird and SeaMonkey. Some of the buttons make commonly preformed actions quicker, others add new functionality.

Rated 4 out of 5 stars (317)
148,598 users
Added April 14, 2006

Toggle Word Wrap

Toggle word wrapping and PRE element wrapping in the message composition and HTML display windows, respectively.

Rated 4 out of 5 stars (38)
7,606 users
Added April 8, 2006

Zombie Keys (Multilanguage Keyboard)

Enter accents, diacritics, diaeresis, umlauts, ligatures etc. with keyboards of various countries (us,uk,ie,fr,it,ru,de,sv) - via easy to remember shortcuts or menu. Also supports all textboxes of the application (such as search, filters).

Rated 5 out of 5 stars (22)
1,556 users
Added April 3, 2006

DOM Inspector Linux

Inspect the DOM of HTML, XUL, and XML pages, including the browser...

Not yet rated
0 users
Added April 3, 2006

Text Complete

The text complete extension adds shortcuts and auto complete functionality to text fields within web forms, the thunderbird message composer, and various other fields within the firefox browser and thunderbird messagecomposer.

The available ...

Rated 4 out of 5 stars (43)
2,021 users
Added April 1, 2006