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Standalone SeaMonkey Mail No Restart

Use SeaMonkey as a standalone e-mail client. Set up a default browser for links opened from Mail & Newsgroups.

Not yet rated
8 users
Updated February 7, 2015

Persona Switcher

Quickly switch between your personas or reset it back to the default via a menu or the keyboard. You can also automatically rotate through all of your themes on a time interval you select. Works for Firefox, Thunderbird, and Seamonkey.

Rated 5 out of 5 stars (40)
2,012 users
Updated February 3, 2015

Add-on Update Checker

Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.

Rated 4 out of 5 stars (48)
16,142 users
Updated February 1, 2015

Direct Currency Converter 2 for SeaMonkey No Restart

Converts monetary amounts from any currency ($, £, etc.) to monetary amounts in a selectable currency automatically while browsing.

Firefox users please use https://addons.mozilla.org/addon/direct-currency-converter-2/

Not yet rated
8 users
Updated January 28, 2015

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 (1,825)
1,142,942 users
Updated January 28, 2015

Scrapbook X CopyPageInfo

Copies the information from ScrapBook data items.

Not yet rated
74 users
Updated January 26, 2015

ScrapBook X AutoSave

Automatically saves web page to ScrapBook on browsing.

Not yet rated
141 users
Updated January 26, 2015

Simple Clocks

Track time in locations world-wide

Rated 4 out of 5 stars (29)
6,166 users
Updated January 23, 2015

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (54)
51,626 users
Updated January 22, 2015

Backslash to Forward slash No Restart

Firefox does not convert backslash to forward slash in URL automaticaly and does not open the link. This add-on corrects the URL with backslash and open page.

Not yet rated
11 users
Updated January 13, 2015

Snap Links Plus

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.

Rated 4 out of 5 stars (87)
20,009 users
Updated January 12, 2015

Mouse Gestures Suite

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.

Rated 4 out of 5 stars (6)
1,462 users
Updated January 7, 2015

Dooth

Dooth passphrase decryption

Rated 4 out of 5 stars (1)
1 user
Updated January 7, 2015

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 (197)
91,560 users
Updated January 7, 2015

tzpush

Z-Sync to Thunderbird Addressbook
Will sync Thunderbird address book to Zentyal, Zarafa, Horde and outlook.com/hotmail.

Rated 4 out of 5 stars (8)
1,146 users
Updated January 5, 2015

Add-ons Button

Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.

Not yet rated
684 users
Updated December 22, 2014

ChatZilla

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

Rated 4 out of 5 stars (124)
168,375 users
Updated December 19, 2014

Addons Manager Hilite No Restart

Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.

Rated 5 out of 5 stars (18)
927 users
Updated December 18, 2014

elevenia

Instant access to your online shopping paradise. The more transaction you've made from our extension, the more point-cashback you'll get!

Rated 5 out of 5 stars (1)
1,862 users
Updated December 16, 2014

Thunderbird Integration for JIRA

This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.

Rated 3 out of 5 stars (12)
496 users
Updated December 11, 2014