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Send Filter

This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.

Rated 4 out of 5 stars (38)
5,232 users
Added August 17, 2007

Folder Pane Cell Selection Type

Since 20070806 the MailNews folder pane has switched from its previous cell text selection to the full row selection which the Mozilla Suite used to use.

Rated 5 out of 5 stars (1)
5 users
Added August 6, 2007

ThunderBirthDay

Display birthdays from the Thunderbird addressbooks as events in Lightning.

Rated 4 out of 5 stars (79)
22,668 users
Added July 13, 2007

Hupper

Adds some feature to http://hup.hu website

Rated 5 out of 5 stars (1)
225 users
Added June 19, 2007

TwittyTunes

Allows to post your currently playing songs to Twitter with a click. As a bonus, you can also post the websites you're visiting, videos you're watching and more!

Rated 4 out of 5 stars (15)
39 users
Added May 17, 2007

AutoPager

AutoPager automatically loads next pages when you reach the end of a page. It works on a ton of sites,Google,Yahoo..
It works well with most other add-ons adblock plus, WOT and most of the greasemonkey scripts.
You can also try AutoPagerLite.

Rated 4 out of 5 stars (394)
91,235 users
Added May 5, 2007

YesScript

A JavaScript blacklist

Rated 4 out of 5 stars (189)
45,382 users
Added May 4, 2007

FireTray

A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...

Rated 4 out of 5 stars (218)
22,756 users
Added April 25, 2007

Speed Dial

Direct access to your most visited websites

Rated 4 out of 5 stars (1,216)
476,576 users
Added April 15, 2007

Ajustar

This extension adds a new button that adjust navigator window to page content.
Every web page has a width and height, and the navigator window usually is not fitted to the page content. With this extension you can read easier the web pages clicking ...

Not yet rated
2 users
Added March 26, 2007

Provider for Google Calendar

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (971)
291,952 users
Added March 10, 2007

Lightning Nightly Updater (Unofficial)

Quickly get to the latest nightly build of Lightning relevant to the version of Thunderbird and the OS you're on.

Rated 4 out of 5 stars (39)
12,918 users
Added March 8, 2007

Compact Menu 2

Add a compact menu button to the navigation toolbar, and hide the menu bar.

Rated 4 out of 5 stars (347)
9,619 users
Added February 20, 2007

XML Digital Signature Tool

XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)

Rated 4 out of 5 stars (3)
396 users
Added February 13, 2007

X-notifier (for Gmail,Hotmail,Yahoo,AOL ...)

Notifier for gmail, yahoo, hotmail, aol and more webmails.
X-notifier(aka WebMail Notifier) checks your webmail accounts and notifies the number of unread emails...
Supports : gmail, yahoo, hotmail, POP3/IMAP, facebook, twitter and more

Rated 4 out of 5 stars (1,614)
122,262 users
Added February 9, 2007

Dog Ears

Mark important parts of a webpage to easily relocate them.

Rated 4 out of 5 stars (27)
223 users
Added February 7, 2007

Key Manager

KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation

Rated 3 out of 5 stars (20)
1,149 users
Added February 6, 2007

LookOut

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Rated 4 out of 5 stars (143)
192,632 users
Added January 31, 2007

Font Finder

FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.

Rated 4 out of 5 stars (64)
32,931 users
Added January 29, 2007

Element Hiding Helper for Adblock Plus No Restart

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (434)
868,536 users
Added January 22, 2007