Up & Coming Extensions
Dcurrency Requires Restart
Currency exchange rates in the status bar (data from Yahoo!Finance or Google on option).
Display currency graphs.
Leet Key Requires Restart
Transforms typed or static text to L337, ROT13, BASE64, HEX, URL, BIN, DES, AES, Morse code, DVORAK keyboard layout and to lower/to upper case functionality, Leet Font...
ThunderBirthDay Requires Restart
Display birthdays from the Thunderbird addressbooks as events in Lightning.
Sender Name Requires Restart
Correct Identity Requires Restart
Ever sent mail from the wrong email address because you forgot to select the correct identity in the compose window?
This extension provides various customization options for the Adblock Plus user interface.
Addons Recent Updates Requires Restart
Show more addons recent updates
Slideshow Requires Restart
Displays a slideshow of picture attachments. When email has attached pictures, it displays "View as Slideshow" button next to the attachment. Button click pops a slideshow window with all the images, allowing you to zoom in/out, save...
Bring to OneNote Requires Restart
Send text and images to Microsoft Office OneNote from firefox. With section dialog, we can select an OneNote section to store page with title. This add-on must work with "Bring to OneNote" application.
Empty 'em Requires Restart
Empty all your Trash and Junk folders in one fell swoop!
The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.
Maximize Message Pane Requires Restart
Maximize message pane by collapsing the thread pane. You can read a message in larger area without opening a new message window...
Emoji Menu Requires Restart
Adds the ability to easily insert emojis into your composed messages in Thunderbird.
Image Zoom Requires Restart
Adds zoom and rotation functionality for images...
CategoryManager 2 Requires Restart
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Extension List Dumper Requires Restart
This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...
Expand mailing list recipients Requires Restart
Adds a toolbar button to expand address book lists to its recipients - useful to stripe out some of them when sending mail...
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).
Shrunked Image Resizer Requires Restart
Make your photos smaller, so they don't take forever to email or send to websites.
This extension is not being converted to a WebExtension.
Zoom Button for Thunderbird Requires Restart
Zoom in, zoom out, and reset zoom with one toolbar button. Works in the Compose window too.