Add-ons
Thunderbird Basic
by Christopher Kaschig
About this Collection
My prefered addons for Mozilla Thunderbird.
34 Add-ons in this Collection
Manually sort folders
by Jonathan Protzenko, Itagaki Fumihiko
15,979 users
This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.
Mail Merge
by Alexander Bergmann
71,960 users
Create and Save or Send Multiple Individual and Personalized Messages from a Draft
German dictionary (de_DE)
by Björn Jacke
40,773 users
German dictionary igerman98 (de_DE, Germany), for Firefox, Thunderbird und Seamonkey.
Send Later
by Jonathan Kamens, Jonathan Perry-Houts
108,636 users
True "Send Later" functionality to schedule the time for sending an email.
Quicktext
by John Bieling
137,469 users
Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.
MinimizeToTray revived
CompactHeader
by jmozmoz
17,097 users
Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.
QuickFolders (Tabbed Folders)
by Realraven (Axel Grude), Alexander Malfait
15,731 users
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!
PrintingTools
by Paolo "Kaosmos"
1,096 users
Adds some options to print messages and addressbooks
XNote++
by opto
22,151 users
Persistent sticky notes associated to emails. You can fulltext search with constraints/email them/print/bookmark/copy to clipboard.
If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.
Calendar Tweaks
by DW-dev
2,373 users
Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
Contact Tabs
by thunderspeed
189 users
Contact Tabs enhances Thunderbird to give you quick access to all your contacts directly from Thunderbird's main window: Use the powerful search field to find your contacts and open them in a new tab for viewing and editing.
Tag Toolbar / Tag Popup
FiltaQuilla
by R Kent James, Realraven (Axel Grude)
15,948 users
Adds many new mail filter actions - launch a file, suppress notification, remove star or tag, mark replied or unread, copy as "read", append text to subject.
Remove Duplicate Messages
by Thorsten W. Schmidt
276 users
If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."
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