SeaMonkey Plugins, Add-ons and extension

The NoScript Security Suite is Free Open Source Software (FOSS) providing extra protection for Firefox (on Android, too!), Chrome, Edge, Brave and other web browsers, by letting user decide freely which site they trust enough to run code in their browser.

Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.

Enigmail is a security extension to Mozilla Thunderbird and SeaMonkey. It enables you to write and receive email messages signed and/or encrypted with the .

RequestPolicy is an extension for Mozilla browsers that improves the privacy and security of your browsing by giving you control over when cross-site requests are allowed by webpages you visit.

Classic Add-ons Archive catalog contains 93,598 versions of 19,450 Firefox add-ons created by 14,274 developers over the past 15 years using XUL/XPCOM technology before Mozilla decided to ruin the classic extensions ecosystem and go exclusively to WebExtensions.

A user style manager for Pale Moon, Basilisk, Interlink, SeaMonkey, and other Mozilla-based software. Install styles from userstyles.org to change how web pages and the application look.

ChatZilla is a clean, easy to use and highly extensible Internet Relay Chat (IRC) client, built on the Mozilla platform, which provides all the usual features: multiple servers, a built-in list of standard networks, easy searching and sorting of available channels, logging, and...

PhotoME is a powerful tool to show and edit the meta data of image files. Thanks to the well organised layout and intuitive handling, it's possible to analyse and modify Exif and IPTC-NAA data as well as analyse ICC profiles - and it's completely FREE!

Shoptimate.com lets you compares prices of multiple items at once and shows you which item to buy where to save the most. Including shipping costs.

Download Status Bar manages every aspect of your downloads (Launch, Show, Scan, Send To, Rename, Checksum, Pause, Resume, Cancel, Clean, Delete), generates Statistics from your Download actions, keeps the History of your previous session downloads and much more.

Greasemonkey Port is a userscript manager for SeaMonkey, originally written by Aaron Boodman and currently SeaMonkey front-end maintained by Marti, Ratty and/or Farby with some backend support from Anthony Lieuallen and Johan Sundström.

FireTray is system tray extension for Linux and Windows that targets Mozilla Firefox, Thunderbird and SeaMonkey.

Need to test your web pages out in Internet Explorer, Chrome, Safari, Opera (or anything else for that matter)?

NewsFox is an efficient 3-pane(email) style Atom/RSS feed reader. NewsFox allows you to group your feeds as you wish, read feed content offline, update feeds when you want, 1-click subscribe with the Firefox URL bar icon, and read other feeds while updating.

HTTPS Always is a UXP extension that encrypts your communications with many websites that offer HTTPS but still allow unencrypted connections.

Secure Login is a login extension for Mozilla Firefox integrated password manager. Its main feature is similar to Opera - Wand login.

Customize menus : Helps removing, moving and renaming menus and menu items New feature: Now you can change or disable any of used keyboard shortcuts Support: Firefox, Thunderbird and SeaMonkey.

Fierr is an extension for Mozilla Firefox that replaces the default error page with a useful, visually appealing page with three buttons: Back, Reload, and Search. The background image of the error page is a high quality 500x500 logo matching the product.

Cookies Exterminator automatically erases cookies, localStorage and IndexedDB objects when they are no longer used by open browser tabs. You don't need to use any blacklists and be concerned about how they are up to date - the unwanted data will be removed on the fly.

Torrent Tornado is a BitTorrent client for Firefox and SeaMonkey that allows users to download Torrents directly from their browser without any additional software.

keyconfig allows you to change keyboard shortcuts. [Firefox, Thunderbird, SeaMonkey, and any other XULRunner Application]

WebPG is a free, open source suite of tools to bring OpenPGP (GnuPG/PGP, gpg, gnupg) to the browser, in an effort to make cryptographic methods usable, safe and accessible to the common man.

Rikaichan is a popup Japanese-English/German/French/Russian dictionary tool for Firefox, Thunderbird and Seamonkey.

WikiLook is a Wikipedia & Wiktionary look up. Fast, light, open source tool that define words for you without need to open new tabs or windows.

Replaces the error page with a lolifox appearance with additional features. Based on Fierr add-on created by RealityRipple (Andrew Sachen). Difference is only error image, add-on icon and off course add-on name with UUID :)