Miscellaneous

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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 (51)
3,654 users
Added May 13, 2006

Session Manager No Restart

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 4 out of 5 stars (443)
268,578 users
Added April 2, 2006

Lightning Featured

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (1,633)
1,219,489 users
Added March 30, 2006

MinimizeToTray

Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...

Rated 4 out of 5 stars (461)
23,194 users
Added February 20, 2006

GeoLocateFox

If a website contains GeoLocation metadata within the html, GeoLocateFox will use the data to show you the location of the website on a map. If no data is available no map can be...

Not yet rated
5 users
Added February 3, 2006

Calculator

Calculator has an interface similar to Microsoft Powertoy Calculator and it offers great features like history, conversions, many functions... And it's a great open source replacement to the calculator included in Windows accessories!

Rated 4 out of 5 stars (94)
8,532 users
Added September 8, 2005

FoxClocks

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (284)
101,150 users
Added August 19, 2005

Tinderstatus

the status of Mozilla tinderboxen in the statusbar

Not yet rated
54 users
Added June 10, 2005

Preferential (New GUID)

Advanced preferences manager for Mozilla-based...

Rated 3 out of 5 stars (5)
183 users
Added May 11, 2005

HostIP.info Geolocation Plugin

Displays Geolocation information for a website using hostip.info data. Works with all versions of Firefox...

Rated 4 out of 5 stars (13)
2,049 users
Added April 30, 2005

Display mailing list header

This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.

Rated 3 out of 5 stars (6)
604 users
Added April 22, 2005

PONG! Multiplayer

Play a game of PONG! while you are waiting.

Rated 5 out of 5 stars (7)
163 users
Added April 19, 2005

Mail Redirect

Allow to redirect (a.k.a. "bounce") mail messages to other recipients

Rated 4 out of 5 stars (106)
30,743 users
Added April 18, 2005

SyncKolab

SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).

Rated 3 out of 5 stars (71)
8,332 users
Added April 17, 2005

BBCodeXtra

BBCodeXtra is an extension, compatible with Mozilla FireFox and Seamonkey, which adds to the context menu new commands to insert BBCode/Html/XHtml codes in an easy and fast way...

Rated 5 out of 5 stars (49)
10,289 users
Added April 16, 2005

Quitomzilla

Quitomzilla helps you quit smoking while you surf the web or wait for new emails, showing the cigarettes, money and time you have saved since you quit...

Rated 5 out of 5 stars (18)
809 users
Added December 24, 2004

Quickfile

Quickfile is an extension for Mozilla Thunderbird which initially aimed to speed up filing of messages into your mail folder heirarchy but now includes features for navigation and folder creation...

Rated 4 out of 5 stars (32)
329 users
Added October 28, 2004

Quote Colors

Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.

Rated 4 out of 5 stars (40)
18,925 users
Added July 12, 2004

QuickNote

A simple note-taking extension.

Rated 4 out of 5 stars (154)
25,333 users
Added June 12, 2004

ChatZilla

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (115)
177,088 users
Added June 11, 2004