Most Popular Extensions

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One Click Search Requires Restart

One-click search similar to The Bat! program.

Rated 4 out of 5 stars (19)
52 users

BccInfo Requires Restart

Send any additional information to your BCC recipient.

Rated 2 out of 5 stars (2)
51 users

Last Message Requires Restart

Navigate the folder to the last message in the moment the folder is opened.

Rated 4 out of 5 stars (8)
51 users

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

Rated 2 out of 5 stars (9)
51 users

RSS Editor Requires Restart

Desktop RSS editor for casual editing of RSS 2.0...

Rated 4 out of 5 stars (12)
51 users

AWN Unread Count Requires Restart

Displays the number of unread messages in the Thunderbird AWN dock icon.

Not yet rated
50 users

Options Toolbar Button Requires Restart

This is a small devision of Michael Buckley's Toolbar Buttons extension. https://addons.mozilla.org/firefox/2377/ or http://codefisher.org/toolbar_button/

Rated 5 out of 5 stars (2)
50 users

AntiLostFilter Requires Restart

Фильтр для конференций AUTO.RU

Rated 5 out of 5 stars (1)
49 users

SendToSecondEmail Requires Restart

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

Rated 4 out of 5 stars (2)
49 users

nowebsearch Requires Restart

Removes web search feature

Rated 5 out of 5 stars (3)
49 users

Hyperactive

Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.

Rated 4 out of 5 stars (1)
49 users

Filter SubFolders Requires Restart

Applies mail filters to sub folders of an IMAP account, not just the Inbox

Rated 5 out of 5 stars (3)
49 users

Cat Attack Quick Button Requires Restart

Easily visit the site for The Cat Attack Fishing Tournament.

Not yet rated
49 users

Close Tab By Double Click Requires Restart

Close active tab by double-clicking it.

Rated 5 out of 5 stars (8)
49 users

Smart OwnCloud Filelink Requires Restart

Filelink pour serveur Owncloud

Rated 4 out of 5 stars (1)
48 users

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.

Not yet rated
47 users

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...

Rated 2 out of 5 stars (17)
47 users

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.

Rated 5 out of 5 stars (3)
47 users

Identity Checker Requires Restart

This add-on checks to sender identity when send a message.

Not yet rated
46 users

Received Requires Restart

Displays the "Received" header parsed with a regular expression.

Rated 4 out of 5 stars (2)
46 users