Add-ons für Android

British English Dictionary (Marco Pinto) von Marco A.G.Pinto

A fork of Mark Tyndall's add-on, based on David Bartlett's
British Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey.

gContactSync von Josh Geenen

Synchronizes Address Books in Thunderbird or Seamonkey with Google Contacts and can synchronize groups with mailing lists.

Hinweis des Sammlers old

Dizionario italiano von flod

Add support for Italian to spellchecking

CompactHeader von jmozmoz

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.

Hinweis des Sammlers old

Display Quota von Arnaud Abelard

This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...

Google Calendar Tab von Bryan Clark

Adds the Google Calendar web interface as a new tab directly into Thunderbird. Creating and viewing events works just as it would in a browser like Firefox

Shrunked Image Resizer von Geoff Lankow

Verkleinern Sie Ihre Fotos, damit es nicht mehr so lange dauert, sie per E-Mail zu versenden oder sie auf eine Internetseite hochzuladen.

Address Close Button von 46emak

Adds a Address Close Button to mail compose window.

Search as list von psoebr

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]

Extra Folder Columns von Joey Minta, Thunderbird Development Team

This extension is for those TB3 users who want the multiple-columns view that TB2 allowed

IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.

New Tab Button von H.Ogi

It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab

About Add-ons von RealityRipple

Adds an About button to extensions, themes, and languages in the Add-ons list.

AddressBookTab von pastisman

It adds a button that can be put in toolbars and that open the addressbook in a new tab

SmtpSelect von nr

A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.

Select Address Book Text von craigm

Kopieren und Einfügen von Name, Telefonnummer, Adresse oder anderen Informationen aus dem Thunderbird-Adressbuch über das Kontextmenü.