Miscellaneous

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ToneQuilla

Adds a new action to mail filters to allow playing a particular sound when the filter matches. Also includes several sample sound files.

Rated 4 out of 5 stars (16)
2,396 users
Added December 11, 2008

gContactSync

Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Rated 4 out of 5 stars (186)
49,770 users
Added August 10, 2008

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (204)
87,667 users
Added July 8, 2008

Clean Subject

"Clean Subject" cleans the subject from multiple occurrences of subject prefixes such as ("Re: Re-2: Re:") and postfixes that are inserted by other clients. Words like "[SPAM]" can be cleaned as well. These prefixes can be defined in the preferences.

Rated 4 out of 5 stars (38)
3,676 users
Added June 25, 2008

OverbiteFF

Add legacy protocol support back to Firefox and SeaMonkey with OverbiteFF, which restores support for Gopher servers, plus CSO/ph searches, finger, whois and more! Cross-platform JavaScript runs anywhere Firefox does.

Rated 5 out of 5 stars (17)
3,496 users
Added June 18, 2008

Tv program

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)
116 users
Added June 17, 2008

Update Channel Selector

Allows you to change the application update channel.

Changing only the channel with Gecko 12 became insufficient because it's "*.mar" related security landings.

Rated 3 out of 5 stars (10)
6,195 users
Added December 30, 2007

XULMine

Game based on Minesweeper by Robert Donner and Curt Johnson.

Not yet rated
4 users
Added October 21, 2007

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)
5,287 users
Added August 17, 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

MoveThrobber

Move SeaMonkey's throbber from the Toolbar to the Menubar.

Not yet rated
1 user
Added January 15, 2007

Filter Uploader for Adblock Plus

DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!

This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...

Rated 3 out of 5 stars (45)
23,287 users
Added December 8, 2006

Tabinta

Tabinta lets you insert tab characters in multi-line text input fields. The name itself is a shorthand for "Tab in Textarea"...

Rated 4 out of 5 stars (21)
860 users
Added November 25, 2006

MinimizeToTray Plus

Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.

Minimize applications to the system tray.

Rated 4 out of 5 stars (192)
18,675 users
Added June 22, 2006

Oak Vocabulary

Oak Vocabulary Extension...

Rated 4 out of 5 stars (9)
17 users
Added June 22, 2006

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 (61)
3,479 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 (549)
277,075 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 (1,842)
1,334,844 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 (466)
14,224 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
3 users
Added February 3, 2006