Up & Coming Extensions
ToneQuilla Requires Restart
Adds a new action to mail filters to allow playing a particular sound when the filter matches. Also includes several sample sound files.
Unsubscribe from Mailing List Requires Restart
Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.
DKIM Verifier Requires Restart
Verifies the DKIM-Signature of an e-mail.
Send Later Button Requires Restart
A simple button to invoke the (already existing) send later functions.
Select Inbox Requires Restart
Automatically select the Inbox folder at startup, even if there is no account set to automatically check for new emails.
Important: the author will provide no other update for this add-on.
Correct Identity Requires Restart
Ever sent mail from the wrong email address because you forgot to select the correct identity in the compose window?
Empty 'em Requires Restart
Empty all your Trash and Junk folders in one fell swoop!
Dorando keyconfig Requires Restart
A modified Dorando's addon to rebind keyboard shortcuts. It is designed to be a drop-in replacement, keeping your old settings. (See details for upgrade instructions.)
Move the Thunderbird menu bar to the top. Choose from a selection of visual styles + colors. Add frequently used bookmarks and an avatar icon without wasting precious screen space. Bookmark your favorite sites, emails, folders or configuration pages.
Close tab on ESC Requires Restart
Closes a Mozilla Thunderbird tab when pressing the Escape key.
Contact Photos Requires Restart
Displays contact photos in the message header.
Toggle Headers Requires Restart
Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (H).
HabuL Requires Restart
Reports spam to the SpamCop, the FTC, FDA, SEC, ACMA and/or Knujon.com. It also allows you to put in your own custom addresses to report spam to such as your ISP or corporate abuse address.
Custom Address Sidebar Requires Restart
Allow you to help address sidebar more useful.
Reinstates the extensions.checkCompatibility preference without respect to the current application version.
BiDi Mail UI Requires Restart
Direction control and BiDi-related charset misdetection correction
Enigmail Requires Restart Featured
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
Auto Resize Image Requires Restart
Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).
Signature /Auto Paste /Prefill Fourms Requires Restart
Makes everyday entries to forms & forums simpler!
Add a sig. with just a Rclick of the mouse and select 'Add Sig.' from the context menu.
(Please, note: What you see in the pic is only an example. ThoseRMine Sorry, you have to make your own tabs. )
Emoji Menu Requires Restart
Adds the ability to easily insert emojis into your composed messages in Thunderbird.