Miscellaneous

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AutoPager Fixed

AutoPager Fixed is a working version of AutoPager extension for Firefox 36+ (non-E10s mode) to autoload the next page(s) when you scroll pages.

ATTENTION: DISABLE THE ORIGINAL AUTOPAGER ADDON!

Rated 4 out of 5 stars (16)
3,438 users
Updated March 27, 2015

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 (173)
39,236 users
Updated March 25, 2015

Lightbird

Standalone calendar UI for Lightning

Rated 5 out of 5 stars (8)
3,943 users
Updated March 20, 2015

Send Later

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

Rated 5 out of 5 stars (33)
51,835 users
Updated March 19, 2015

Focus Regainer Lite

Return focus from embedded object back to browser on browser hotkeys double pressed.

Rated 5 out of 5 stars (6)
84 users
Updated March 16, 2015

Focus Regainer

Return focus from embedded object back to browser on browser hotkeys pressed.

Rated 4 out of 5 stars (21)
326 users
Updated March 16, 2015

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 3 out of 5 stars (104)
8,882 users
Updated March 8, 2015

Standalone SeaMonkey Mail No Restart

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

Rated 5 out of 5 stars (1)
22 users
Updated February 7, 2015

Notification Storage

Provides the Notification Storage service which is missing from SeaMonkey 2.24-2.32

Not yet rated
3 users
Updated February 6, 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 (41)
2,058 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)
16,008 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
7 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 (1,827)
1,128,992 users
Updated January 28, 2015

Scrapbook X CopyPageInfo

Copies the information from ScrapBook data items.

Not yet rated
144 users
Updated January 26, 2015

ScrapBook X AutoSave

Automatically saves web page to ScrapBook on browsing.

Not yet rated
243 users
Updated January 26, 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
13 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 (88)
19,833 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)
2,427 users
Updated January 7, 2015

Dooth

Dooth passphrase decryption

Rated 4 out of 5 stars (1)
2 users
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 (200)
92,788 users
Updated January 7, 2015