Most Popular Extensions
One Click Search Requires Restart
One-click search similar to The Bat! program.
BccInfo Requires Restart
Send any additional information to your BCC recipient.
Last Message Requires Restart
Navigate the folder to the last message in the moment the folder is opened.
Tv program Requires Restart
It shows popular stations TV program in listings, alerts and bubble infos. It's only for Czech and Slovak TV stations.
Localization: sk, cs, hu, en
RSS Editor Requires Restart
Desktop RSS editor for casual editing of RSS 2.0...
AWN Unread Count Requires Restart
Displays the number of unread messages in the Thunderbird AWN dock icon.
Options Toolbar Button Requires Restart
SendToSecondEmail Requires Restart
This Extension lets you send Mails to both, first and second email address...
nowebsearch Requires Restart
Removes web search feature
Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.
Filter SubFolders Requires Restart
Applies mail filters to sub folders of an IMAP account, not just the Inbox
Cat Attack Quick Button Requires Restart
Easily visit the site for The Cat Attack Fishing Tournament.
Close Tab By Double Click Requires Restart
Close active tab by double-clicking it.
Smart OwnCloud Filelink Requires Restart
Filelink pour serveur Owncloud
rmIncomingDups Requires Restart
rmIncomingDups is a Thunderbird extension that checks if there are duplicate messages across accounts.
When a new mail arrives rmIncomingDups checks according to the rules configured if it finds some duplicates and removes them.
SMS Sidebar Requires Restart
If you work in front of a computer and send a lot of SMS text messages this is for you. Finally you can send SMS from the privacy of your Mozilla application. The focus of this addon is on efficiency, ease of use and easy access to advanced SMS featu...
Adhiyan Requires Restart
Adhiyan is a tool to convert and view TSCII/TUNE/TAB/TAM/DailyThanthi/Dinamani/Chenet/Kambar encoded Tamil content to UNICODE Tamil.
Identity Checker Requires Restart
This add-on checks to sender identity when send a message.