Add-ons
Newest Extensions
Sort by:
Greek Translator
Requires Restart
Translates English to Greek and vice versa.
Mailbox Alert
Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...
SJCall
Requires Restart
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...
Indic IME
Requires Restart
Indic IME toolbar facilitates typing in Indian Languages in web pages...
Orb VideoMail
Requires Restart
Toolbar button for creating videomails OF ANY LENGTH right from within Thunderbird. This is videomail freed from attachments!
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.
Sieve
This Extension implements the ManageSieve protocol for securely managing Sieve Script on a remote IMAP server...
Addressbooks Synchronizer
Synchronizes selected addressbooks with other instances of thunderbird
using local files, webdav servers or imap servers
Mnenhy
Requires Restart
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.
Duplicate Contact Manager
Requires Restart
Facilitates handling of duplicates in your address book(s). Allow to search and remove similar contacts.
Nostalgy
Requires Restart
Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.
Thunderbird Message Filter Import/Export
Requires Restart
Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.
rikaichan
Requires Restart
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...
TryAgain
Requires Restart
TryAgain keeps trying to load a webpage when the server cannot be reached.
Get before Send
Requires Restart
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.
Toolbar Buttons
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.
Zombie Keys (Multilanguage Keyboard)
Requires Restart
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).
DOM Inspector Linux
Requires Restart
Inspect the DOM of HTML, XUL, and XML pages, including the browser...
Text Complete
Requires Restart
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 ...
Slideshow
Requires Restart
Displays a slideshow of picture attachments. When email has attached pictures, it displays "View as Slideshow" button next to the attachment. Button click pops a slideshow window with all the images, allowing you to zoom in/out, save...
To create your own collections, you must have a Mozilla Add-ons account.
