Welcome to SeaMonkey Add-ons.
Add extra features and styles to make SeaMonkey your own.Close
Adds Firefox-style tab closers into SeaMonkey.
Stylish Sync No Restart
Sync engine for Stylish with backup / restore facility.
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Adblock Plus No Restart Featured
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
FlashGot Mass Downloader Featured
Download all the links, movies and audio clips of a page at the maximum speed with a single click, using the most popular, lightweight and reliable external download managers.
Facebook Share Button No Restart
Facebook Share Button lets you share any web page on your Facebook Timeline by a quick Facebook button.
Extension Auto-Installer No Restart
Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.
Hide title bar if window is maximized.
This extension created only for GNOME 3. It can create problems with another DE (KDE, XFCE, etc). However, you can use HTitle at your own risk (need enable "legacy" mode on settings page).
This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.
Add-ons Manager - Version Number No Restart
Restores add-on version number inside Add-on Manager for latest builds of Firefox, Thunderbird and Seamonkey.
uBlock Origin No Restart
Finally, an efficient blocker. Easy on CPU and memory.
Ziftr Alerts (formerly FreePriceAlerts) No Restart
You do the shopping. We'll do the searching. It's that simple.
Adds the ability to create and edit entries in the password manager.
Slim Add-ons Manager No Restart
The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.
Facebook Photo Zoom No Restart
Facebook Photo Zoom lets you zoom Facebook images.
Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter
Context searching for everyone and URL manipulation tool for advanced users...
Replaces the error page with a lolifox appearance with additional features.
FB Phishing Protector No Restart
Protects you from Phishing or Scams (through XSS injection attacks) while you're on Facebook™ - Version 4.2 introduces a Tracking Protection feature as well.