Add-ons
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Google Calendar Tab
Requires Restart
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
ThunderTabs
Requires Restart
This add-on is a button on your toolbar that lets you open web apps as Tabs in Thunderbird. Use it to load Google Mail, Google Wave, Google Voice, and other "inboxes" (or any url) as tabs within Thunderbird, making it your communications hub.
NoComposeAccount
Requires Restart
Have the option of Thunderbird always using the default sender account or a blank account when composing or replying to messages
Splash! (Compatibility Update)
Requires Restart
Adds a splash screen. Supported in Firefox, Flock, Thunderbird, Sunbird, eMusic Remote, Songbird and Sunbird.
AddressBookTab
Requires Restart
It adds a button that can be put in toolbars and that open the addressbook in a new tab
Is It Compatible?
Requires Restart
**Notice: This addon is no longer maintained.** Are your addons compatible with the next version of Firefox? Find out straight from the Addons window! **Version 0.6.0 is available from the Versions page, it was never approved by AMO**
XNote++
Featured
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.
SUNBIRD Calendar button- **64 bit** version for Firefox 4.* and Thunderbird 3.*
Requires Restart
A button to call up the Sunbird Calendar from Firefox and Thunderbird toolbars . 64 BIT operating system version!
SUNBIRD Button-**32** bit version-for Firefox 4.* and Thunderbird 3.*
Requires Restart
A button to call up the Sunbird Calendar from Firefox and Thunderbird toolbars. This version for 32-bit operating system!
Saved Password Editor
Requires Restart
Adds the ability to create and edit entries in the password manager.
TheRealURL
Requires Restart
Get URL information: expand short URLs, get title and content type information without visiting the site.
UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.
Character Palette
Requires Restart
Firefox toolbar for selecting strange characters that are not on my keyboard.
tasks & mails
Requires Restart
Tasks and emails management in a Thunderbird extension. tasks are stored in emails folder and it's possible to link an email to a task.
See all in one, emails and tasks (no more pain to synchronize a task manager).
Autohide Tabbar
G-Hub Lite
Google Tabs for Thunderbird! G-Hub Lite supports Calendar, Contacts, Drive, Docs, Sheets, Slides, Maps, Search, & Voice. Need Google Workspace support (formerly G Suite)? Check out G-Hub Pro: https://www.schiffner.com/index.php/software/g-hub-pro
ThunderCal
Requires Restart
ThunderCal simply gives you a toolbar button that you can use to run Google Calendar inside Thunderbird. Inspired by the ThunderWave add-on.
Display Contact Photo
Requires Restart
Displays the contact photo/image/picture of the sender/recipient while reading or composing a message. Supports photos in a local folder and the 'Face' header for embedded photos. The add-on adds new generic photos and many styling possibilities.
Contact Photos
Requires Restart
Displays contact photos in the message header.
Eortologio - Greek Namedays Calendar (Thunderbird)
Requires Restart
This extension consists of a Greek Orthodox Namedays reminder. It displays in Thunderbird status bar current day's celebrated names.
Delete Trash Button
Requires Restart
Adds an Empty Deleted button to the Toolbar
To create your own collections, you must have a Mozilla Add-ons account.
