Top-Rated Extensions
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QuickFolders (Tabbed Folders)
Requires Restart
Featured
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!
Search Results Sort By Date Not Relevance
Requires Restart
Makes search results sort by "date" instead of "relevance" by default.
Disable DragAndDrop (Thunderbird)
Requires Restart
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.
IMAP Received Date
Requires Restart
Make the “Received” column in IMAP folders show when messages were actually received.
Stop Ignoring Reply:To
Requires Restart
Default "Reply" functionality pays attention to "Reply-To" in original email
GlodaQuilla search indexing enhancements
Requires Restart
Permits selective enabling and disabling of search indexing on folders or accounts - with inheritence. Also adds three columns to the Thunderbird message pane that are useful in debugging.
Grammalecte [fr] (for Thunderbird)
Requires Restart
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.
Provider for Exchange ActiveSync
Requires Restart
Add sync support for Exchange ActiveSync (EAS v2.5 & v14.0) accounts to TbSync
Close tab on ESC
Requires Restart
Closes a Mozilla Thunderbird tab when pressing the Escape key.
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.
No Message Pane Sort
Requires Restart
No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.
It is still possible to sort messages by ctrl-clicking the header.
Search as list
Requires Restart
Search results appear as list (as per the "Open email as list" button).
- return to facet view with shift+close [x]
- auto open list view when few results found
- column config./sort/toggle [IMG3&4]
- apply columns to search as list menu [IMG5]
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.
ThunderHTMLedit
Requires Restart
Featured
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
EHTip
Requires Restart
Word translation in tooltip with English⟷Croatian dictionary already incorporated.
To create your own collections, you must have a Mozilla Add-ons account.