jQuery Requires Restart
jQuery and jQuery UI embedded in browser
ImageBlock for seamonkey Requires Restart
Updated version of imageblock by Hemant Vats to work with seamonkey 2.29.
Provides a fast way to disable images in web pages that's usually set by the image manager sub-menu.
Email this page Requires Restart
Simple SeaMonkey Email this page button
Prevent duplicate tabs. Allow only one tab for a url. If you click a link that is already opened in a tab, then existing tab would be focused instead of opening a new tab. This works even across firefox windows.
HashColouredTabs+ Requires Restart
Improves tab identification by providing a small colored icon for any site which doesn't have its own 'site icon'.
★ 'favicon' now also shown in history and bookmarks ★
New Tab Button 2 Requires Restart
Provides a new tab button for the navigation toolbar.
HTitle (discontinued) Requires Restart
Hide title bar if window is maximized.
This add-on has been discontinued!
Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.
FlameFox 3 Rebrander Requires Restart
Rebrand SeaMonkey as Firefox 3 (by 2008WindowsVista and a11RyanC2)
Save better history for fragment URLs.
Metal Lion Image Saver Requires Restart
Single-click access to common actions for images (e.g. saving, copying, printing)
Preview lightweight theme when hover on menuitems in Apply Theme menu.
FAYT Revived Requires Restart
Regain possesion of your good "Find As You Type" search bar in Firefox and SeaMonkey!
Remember Mismatched Domains Requires Restart
The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...
Shift+LeftClick XUL Requires Restart
This simple addon has only this functionality, nothing else: it opens links in a new active tab with Shift+LeftClick (left mouse button click).
Better use https://addons.mozilla.org/ru/firefox/addon/shiftleftclick-opens-links-in-/ for FireFox.
Google Redesigned 2 Requires Restart
Ported version from Firefox to be compatible with Seamonkey 2.
A complete redesign of popular Google services, Google Redesigned changes the appearance of popular Google services.
Changes the mask character used in password fields.
CuteMenus - Crystal SVG Requires Restart
Note from Mozilla: This add-on has been discontinued. Try Menu Icons Plus instead.
Adds icons to all menus along with some other features...
Key config Requires Restart
This add-on provides configurable keyboard shortcuts for several actions and a dialog to customize them.
All shortcuts can be redefined in Tools -> Key settings
Add Search Engines for SeaMonkey Requires Restart
Add missing search-engine detection to SeaMonkey
HTML5 Loop Requires Restart
Loop HTML5 Video and Music.