Add-ons
Miscellaneous
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NoComposeAccount
Requires Restart
Have the option of Thunderbird always using the default sender account or a blank account when composing or replying to messages
Proton Mail - Quick Access
Quick Access to Proton Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Subject Cleaner
Requires Restart
Remove extra strings from the subject while composing the message.
Extra Folder Columns
Requires Restart
This extension is for those TB3 users who want the multiple-columns view that TB2 allowed
IMPORTANT: If you are using Thunderbird 38 or later, uninstall this addon. The functionality is in core now.
Gemini - Quick Access
Quick Access to Google Gemini AI (formerly Bard) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Thunderbird Message Filter Import/Export Enhanced
Requires Restart
Thunderbird Message Filter Import/Export Enhanced is a compatibility port of Wind Li's add on.
Original add on here: https://addons.mozilla.org/en-US/thunderbird/addon/thunderbird-message-filter-imp/
Subject Manager
SQLite Manager
WebDAV for Filelink
Requires Restart
Adds the possibility to use a WebDAV store for Filelink. With this extension you can link attachments to a WebDAV service, for example as provided by Apache's mod_dav or some public services.
Tuta Mail - Quick Access
Quick Access to TutaMail aka Tutanota in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Google Calendar Tab
Requires Restart
Adds the Google Calendar web interface as a new tab directly into Thunderbird. Creating and viewing events works just as it would in a browser like Firefox
Imap-ACL-Extension
Requires Restart
Extension to manage acls/permissions for shared mailboxes/folders on imap servers.
Messenger - Quick Access
Quick Access to Facebook Messenger in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Download Status Bar
If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.
Discord - Quick Access
Quick Access to Discord in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Ruler Bar
New Tab
Year view
Slack - Quick Access
Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
LaTeX It!
Requires Restart
This addons allows you to write LaTeX expressions in your emails such as $x^2$ or $$\sum_{x=0}\infty$$ and have them all replaced by a PNG image with the corresponding formula inside.
*Note: this addon is not compatible with Thunderbird 78+*
To create your own collections, you must have a Mozilla Add-ons account.
