Miscellaneous
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Minimize On Start and Close Requires Restart
A remake of the MinimizeToTray-extension made to fit the Windows 7 taskbar. Instead of minimize the window to the tray it minimize it to the taskbar. It can minimize on startup, when the window is closed and/or when the esc key is pressed.
NoComposeAccount Requires Restart
Have the option of Thunderbird always using the default sender account or a blank account when composing or replying to messages
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/
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.
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.
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.
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.
Imap-ACL-Extension Requires Restart
Extension to manage acls/permissions for shared mailboxes/folders on imap servers.
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.
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.
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
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.
Google Keep - Quick Access
Quick Access to Google Keep in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
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.
Telegram - Quick Access
Quick Access to Telegram Web in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
To create your own collections, you must have a Mozilla Add-ons account.