Add-ons
Message and News Reading
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LookOut
Requires Restart
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Show Address Only
Requires Restart
Adds columns to display Sender/Recipients mailaddress only.
ThreadKey
Strike the 'T' key to sort messages by thread, strike the 'U' key to sort them unthreaded again, just like the 'G' key switches to Grouped By Sort view.
Toggle Headers
Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (Ctrl+H).
Signature sync for Gmail
This extension allows you to automatically use your signature from Gmail accounts in Thunderbird. No longer need to maintain two separated signatures!
FireTray
Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
quicker quicksearch
make searching for emails faster:
Automatically insert into the quickfilter box: the author, subject or the email domain of the selected email.
No need to retype the address, if you want to search for all emails of this author.
QuoteCollapse
Requires Restart
Collapse and expand quotes.
Contributors: Stanimir Stamenkov, Dillinger
Nostalgy
Requires Restart
Keyboard shortcuts to change folder, move/copy messages, with folder name auto-completion.
QuickArchiver
Get things done and clean up your inbox! When you move an e-mail the first time, QuickArchiver remembers the destination folder and lets you move more e-mails with a single click. You can apply rules by sender, recipient, and subject.
ConfirmFolderMove
Requires Restart
Introduces a preference that allows users to be prompted before moving folders.
Toggle HTML
Rspamd-spamness
Smileyfixer
New Tab Button
It provide you the following functionalities:
* Open a selected message in a tab by a toolbar button
* Open a message in a tab by double-clicking its header view (disabled by default)
* Hide Lightning's Today Pane on opening a tab
Join-NG
Requires Restart
Join partial messages. Somewhat similar to MS Outlook Express "combine and decode".
Filter Button
Allows to add a button to the message header view toolbar that shows all filters that match the selected message, including manual and disabled filters. A click on the button allows to select a filter to run.
Read Aloud: A Text to Speech Voice Reader
Read aloud the selected email messages using text to speech (TTS). Read Aloud is intended for users who prefer to listen to content instead of reading, and those with dyslexia or other learning disabilities.
Mail Summaries
Requires Restart
Adds a summary of mail accounts and folders to replace the account central pane and the empty folder preview
Unmangle Microsoft ATP Safelinks
Users of outlook.com and o365 who have Advanced Thread Protection enabled will have all URL's in emails changed to redirect them to an Microsoft filter before opening. This is a bad idea.
This plugin will change the URL back to the original value.
To create your own collections, you must have a Mozilla Add-ons account.
