Add-ons
Interface Customizations
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Scriptish
Requires Restart
The greatest user script engine on the Internet (a fork of Greasemonkey).
Restartless Restart
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
CloseTab
Requires Restart
Lightweight add-on which adds to right-click menu 3 items allowing to close current tab, open a new one and reopen closed one. Right-click anywhere on site instead of using keyboard or finding buttons.
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
MailNews Status Icons
Requires Restart
Adds status icons for replied and forwarded messages to SeaMonkey MailNews.
FLST (Firefox 4+)
Requires Restart
Provides Focus Last Selected Tab and Tab flipping functionality (based on the FLST extensions by Gorgias and Gozer, but ported to Firefox 4/.../56 and repaired Tab flipping functionality). Enjoy!
Edit Custom Size Image
Requires Restart
Fixes a bug in SeaMonkey Composer and Thunderbird Message Compose whereby the Image Properties dialog would always reset the image to actual size.
SM Home Button
No Alt Text
Requires Restart
Changes the default setting for new images to not use alternative text. This also works around a bug in some versions of SeaMonkey Composer and Thunderbird Message Compose whereby the Image Properties dialog would always demand alt text.
CheckBoxMate Lefedor Edition
Requires Restart
Check multiple checkboxes by drawing a rectangle around them. FF6 version.
I've made this version since i did need it for use with RTM,
Togglify Add-on Toggler
Adds toolbar buttons for each restartless add-on (including user scripts and plugins) to toggle its enabled state.
Edit Bookmark Plus
Requires Restart
Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.
Replacement of OpenBook addon
Customizations for Adblock Plus
This extension provides various customization options for the Adblock Plus user interface.
Old Default Image Style
Restores the default image style used for top-level images in previous versions of Firefox.
Stylish Sync
Add Search Engines for SeaMonkey
Requires Restart
Add missing search-engine detection to SeaMonkey
Sort and Search Customization Dialogs
Requires Restart
Sort and search for buttons in (any) toolbar customization dialog
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