jQuery Requires Restart
jQuery and jQuery UI embedded in browser
Block advertisement and access to adult sites
Adds icons to buttons and/or menus.
Scriptish Requires Restart
The greatest user script engine on the Internet (a fork of Greasemonkey).
Active Stop Button Requires Restart
Stop gif animation with button, context menu or Esc key
Tab Clicking Options Requires Restart
Select actions for various clicking events on a tab or the tab...
Text2Link Requires Restart
Text2Link is a simple and easy-to-use way to copy the text of a link, or to open URLs and send emails to addresses not marked-up as HTML links.
Tabs Menu Requires Restart
Adds a Tabs menu to the main menu that lets you easily change between tabs.
Joomla! Admin Requires Restart
Joomla! Admin brings ease & convenience to your computer/workstation, by providing you with a ready-to-use menu options that balms your repetitive work :) Now, Go to the Administrator page or Duplicate the current tab to a new tab/window in a jiffy!!
Adds buttons to toggle the using the default page colors and fonts, and the page defined colors and fonts.
Custom Buttons Requires Restart
Gives a possibility to create custom toolbarbuttons...
Reopens the last closed tab.
TaQuilla Requires Restart
Automatic tagging using Bayesian statistics
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...
Blue Essence Seamonkey Theme Requires Restart
Dark navigator theme based on a default Classical theme and now works on Linux :)
Link Status Redux Requires Restart
Shows an indicator on the status bar in front of the link address when the mouse cursor is over a link to a page you have bookmarked or visited before.
Open With Opera sends pages, links, tabs and images from Mozilla Firefox to Opera.
FireTray Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
Forecastfox Weather Requires Restart
Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.