Add-ons
Top-Rated Extensions
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Search Results Sort By Date Not Relevance
Requires Restart
Makes search results sort by "date" instead of "relevance" by default.
QuickFolders (Tabbed Folders)
Requires Restart
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!
Classic Toolbar Buttons [Tb24-58] (discontinued)
'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7 small view, Fx4-12 large view & Tb5-14) for current Firefox, Thunderbird and Seamonkey versions.
Disable DragAndDrop (Thunderbird)
Requires Restart
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.
Stop Ignoring Reply:To
Requires Restart
Default "Reply" functionality pays attention to "Reply-To" in original email
NewScrollbars [Tb 10-56] (discontinued)
Requires Restart
The "NewScrollbars"-extension replaces default scrollbars of Firefox and Thunderbird with colorized ones (partly) known from "Noia themes".
[ not compatible with Firefox / Thunderbird 57+ ]
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.
EHTip
Requires Restart
Word translation in tooltip with English⟷Croatian dictionary already incorporated.
Download Status Bar
If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.
Address Close Button
Requires Restart
Adds a Address Close Button to mail compose window.
Archive This
Requires Restart
Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.
Add-ons Manager - Version Number (discontinued)
Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.
Saved Password Editor
Requires Restart
Adds the ability to create and edit entries in the password manager.
Subject Manager
Element Hiding Helper for Adblock Plus
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
XNote++
Requires Restart
Persistent sticky notes for Thunderbird associated to mails.
This is a port to Thunderbird >= 3 based on XNote 2.1.0 ( https://addons.mozilla.org/en-US/thunderbird/addon/3093 ) with bugfixes and additional features.
Slim Add-ons Manager
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.
CustomizeMyBird
This add-on offers ui tweaks to improve Thunderbirds appearance (squared tabs, custom tab height, alternative Add-on Manager appearance, compact main toolbars and more). v2.3+ for Tb52-63+
Close tab on ESC
Requires Restart
Closes a Mozilla Thunderbird tab when pressing the Escape key.
To create your own collections, you must have a Mozilla Add-ons account.
