Up & Coming Extensions
Close tab on ESC Requires Restart
Closes a Mozilla Thunderbird tab when pressing the Escape key.
Custom Buttons Requires Restart
Gives a possibility to create custom toolbarbuttons...
Lightbird Requires Restart
Standalone calendar UI for Lightning
Search Results Sort By Date Not Relevance Requires Restart
Makes search results sort by "date" instead of "relevance" by default.
Flex Confirm Mail Requires Restart
Confirm mail address and attachments based on flexible rules.
Archive This Requires Restart
Provides keyboard shortcuts for filing messages into nine configurable "favorite" folders using user-defined keys. Also provides a simple filter system with a keyboard shortcut to file the currently selected message(s) into the correct folder.
MEGAbird Requires Restart
Add MEGA support to Thunderbird's Filelink feature.
Lightning Colors Reminder Requires Restart
Let's show the calendar color on Lightning reminders!
Free unused memory that Firefox is currently using.
Grammar Checker Requires Restart
Checks grammar using LanguageTool.
Header Tools Lite Requires Restart
Allows to modify the header and the source of messages
GNOME Keyring integration Requires Restart
GNOME Keyring integration
InfoNotary Configurator for Mozilla Requires Restart
Configures Mozilla for work with certificates issued by InfoNotary Plc.
BiDi Mail UI Requires Restart
Direction control and BiDi-related charset misdetection correction
Search as list Requires Restart
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]
Set a minimum text size for all web content. Use the toolbar button to switch it on and off. NEW: Three preset sizes. NEW: Use mouse scroll on the toolbar button.
Nextcloud for Filelink Requires Restart
"Nextcloud for Filelink" is an Open Source Thunderbird extension which makes it easy to send large attachments with Thunderbird by uploading them first to a Nextcloud server and by then inserting the link into the body of your email.
Send Later Requires Restart
True "Send Later" functionality to schedule the time for sending an email.
Expression Search / GMailUI Requires Restart
Powerful message searching through expressions. Type "from:fred to:tom" to see all messages from Fred to Tom in the current view. Support 'regular expressions' and 'click to search'.
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...