Add-ons
Message and News Reading
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AutoRssDeleter
Requires Restart
Deletes rss message if the website link was clicked while Ctrl holding
Perapera Japanese-French Dictionary File
Requires Restart
This is additional dictionary file for use with the Perapera Japanese Pop-up Dictionary add-on.
Archived-At
Requires Restart
Add menu items for copying Archived-At (RFC 5064) URLs from emails
Zhong Wen
Requires Restart
Mouse over a Chinese character to find out it's meaning. A popup will appear showing the 'Pinyin' pronunciation, the simplified character form, and the English translation. You can customize what parts to show on the preferences window.
Ungender
Eine Thunderbird-Erweiterung, welches Binnen-Is und Ähnliches von Webseiten entfernt. Es basiert auf der bekannten Firefox Erweiterung Binnen-I be gone.
Prevent Delete
Readonly Attachments
Requires Restart
Saves temporary files as read-only when showing attachments.
CIX Forums
Requires Restart
Open CIX Forums in Thunderbird. Free CIX accounts from https://forums.cix.co.uk/signUp.aspx?p=cixbasic
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.
Hide Horizontal Scrollbar
Requires Restart
Hides the unnecessary horizontal scrollbar in wide layout view.
Forumzilla
Requires Restart
Forumzilla lets you read news and blog feeds in your email application. It is similar to the feed reader built into Thunderbird, but it lets you download stories into any folder in any POP, IMAP, or local account (configurable per...
ThunderbirdCR (Dictionary)
Requires Restart
Context Reverso for Thunderbird.
A translator/dictionary available to English, Spanish, French, German, Italian, Portuguese Dutch, Polish, Romanian, Arabic, Chinese, Japanese, Hebrew, Russian, Turkish.
Hotkey: Search selected texts (Shift+F1)
Any key
Requires Restart
Allows typing into phonetic Russian, Ukrainian, Amharic, Arabic, Armenian, Hindi Davangari, Hebrew, Mongolian, greek... transforming translit into the choosen language...
Super Date Format
Requires Restart
Fully customize the date format of the Date/Received column.
Show Outlook Appointments (vcal / ics)
Requires Restart
An extension to show embedded Outlook calendar (vcal / ics) parts.
Thunderbird doesn't show calendar parts from Outlook appointment emails. This addon adds a button to download the embedded appointment as ICS to import it into another calendar.
vault56 protection
vault56 protection protects against potentially malicious attached files and links. Links are rewritten to pass through vault56 URL protection servers and checked for trackers and malicious activity.
Get Selected Messages
Requires Restart
Adds the button on the toolbars "Get All New Messages", "Get Selected Messages" and "Get Starred Messages", the analog of button from File and File->Offline->Get Selected Messages, Get Starred Messages for loading selected messages by...
To create your own collections, you must have a Mozilla Add-ons account.
