Add-ons
Newest Extensions
Sort by:
Open Google Tabs
Open up Google Calendar, Notes, and Microsoft Outlook in a new tab.
Mark Button
Toolbar button to mark a message as read or unread with 1 click.
Microsoft To Do - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Microsoft To Do (Live).
Hide Duplicates From 'All Mail'
Hides duplicate emails from the 'All Mail' folder upon clicking on a result from Global Search, so that if one email is in both the 'All Mail' folder (e.g. of Gmail) and another folder (e.g. 'Sent'), it'll only show the email from the other folder.
One-Click Forward
Forward emails directly through a dropdown of predefined recipients.
Configure recipients in settings. Use the message toolbar button "Quick Forward" to open a dropdown with your recipients and forward directly, or hold Shift to edit first.
Yandex Mail - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Yandex Mail.
Proton Mail - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Proton Mail.
Tuta Mail - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to TutaMail aka Tutanota.
ChatGPT - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to OpenAI ChatGPT.
Slack - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Slack.
Discord - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Discord.
Skiff Mail - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Skiff Mail.
Whatsapp - Quick Access
This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to Whatsapp Web.
Last selected message
The add-on remembers the last selected message in visited folders. After restarting Thunderbird, when we enter the previously visited folder, this message will be displayed, just like in Microsoft Outlook. Currently, Unified Folders are not supported
Filtered Folder to Favorite
Add filtered folders to favorites. You may lose your favorites. For those with many folders.
Group Favorite Folders
An extension for Thunderbird 115+ (Supernova) that groups and sorts favorites folders in the compact view.
FindNow
Send Unsent Mail ButtonTo create your own collections, you must have a Mozilla Add-ons account.
