Add-ons
Most Popular See all »
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Adds tools to import/export messages and folders
EML, MBOX, HTML PDF , Plaintext Support and CSV support with indexes and file naming.241,344 users -
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.14,583 users -
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!12,933 users -
Add as many local folders as you want to.
New folders can reside on mapped or network locations.8,082 users -
Adds a full sender and recipient e-mail column to message list panel.5,201 users -
Disable drag and drop on the folder tree in order to prevent unintended folder movement.3,490 users
Top Rated See all »
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Makes search results sort by "date" instead of "relevance" by default.722 users -
A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.51 users -
Context menu on message allowing quick filtering based on email/sender or domain1,545 users -
The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.
See new mail at a glance after automatic filtering - supports quickFilters addon!12,933 users -
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.38 users -
Just a very simple add-on that adds a toolbar button to execute the "Run Filters on Folders" from Tools menu.418 users
Recently Added See all »
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This Extension provides a framework for AI-powered email analysis. It processes incoming emails, sends them to a language model of your choice, and applies tags. This allows for sophisticated email classification and sorting.2 users -
フィッシングメールの対策として
主に、メール内のリンク先のドメインをチェックし、
安全性を確認する。
Check the domain of the link in the email.4 users -
A basic Google Drive Quick Access extension that adds a Google Drive icon and allows you to quickly access it148 users -
This add-on (CrossBorderScam-Canceler) filters fraudulent emails by focusing on the location of the received email and analyzing the header information of the opponent's email and the links in the email body.(view in English, Japanese or German)49 users -
[IMPORTANT] This is a pre-release version Thunderbird Send. We will gradually open it for beta testing.
This add-on is built and maintained by your friends at Thunderbird.
Stay tuned to updates on thunderbird.net51 users -
Press F9, or your favourite shortcut, to toggle the visibility of the Folder Pane80 users
See all 138 extensions in Folders and Filters »
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