Welcome to SeaMonkey Add-ons.
Add extra features and styles to make SeaMonkey your own.Close
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...
Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!
Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.
Play a game of PONG! while you are waiting.
Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.
TabSubmit No Restart
Lets the user direct the submission of a form to a new tab or window. [Bug #17754]
Displays your Total and Recent Average Credits for BOINC distributed computing projects in the status bar.
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.
Lists installed add-ons (extensions, themes, plugins). Compatible version linked from the Developer comments section at the bottom of the addon's page.
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.
Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.
Standalone calendar UI for Lightning
Year view for calendar.
WebODF No Restart
Viewer for OpenDocument Format office files. It can display documents saved from LibreOffice, OpenOffice, Calligra, Abiword, Microsoft Word, Excel, PowerPoint. The documents should be saved in the OpenDocument Format.
Allow to redirect (a.k.a. "bounce") mail messages to other recipients.
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...
MathML-ctop No Restart
Converter from content MathML to presentation MathML
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.