Add-ons
Message and News Reading
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XNote++
Persistent sticky notes for Thunderbird associated to mails.
In TB 78, you can define the note position in the settings. If you have a large screen, you can even display the notes outside of TB's main window, so it won't hide anything.16,970 users -
Thunderbird Conversations
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.
25,035 users
Most Popular See all »
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This extension allows you to manually sort (order) your folders in the folder pane of Thunderbird or automatically sort them, but in a better way. This extension also allows you to re-order accounts in the folder pane.194,170 users -
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).
Support: Thunderbird149,987 users -
Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).81,411 users -
Allows you to use your Exchange email accounts that use Outlook Web Access (OWA) with Thunderbird36,129 users -
This addon provides a conversation view for Thunderbird, grouping messages together and allowing you to reply "inline" thus providing a more efficient workflow.25,035 users -
Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.23,170 users
Top Rated See all »
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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!17,777 users -
Make the “Received” column in IMAP folders show when messages were actually received.1,004 users -
Closes a Mozilla Thunderbird tab when pressing the Escape key.354 users -
No Message Pane Sort prevents accidental resorting of the message pane by disabling mouse button clicks on the column headers, thus, locking the sorting order of your emails.
It is still possible to sort messages by ctrl-clicking the header.2,070 users
Recently Added See all »
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Fixes smileys that show in emails created by Outlook as J.8 users -
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Seams provides some integration with Patchwork, the patch tracking system. It makes the patch state visible directly from Thunderbird. It also displays useful links to a Patchwork instance or to mail archives, and commands to apply the patch locally.4 users -
Raise X11 urgent flag if new mail is received.
This addon listens for incoming mails and causes the Thunderbird window to draw attention.59 users -
Addons to edit and save eml file
Available on Github with MIT Licence :
https://github.com/pgpgeek/thunderbird-addon-eml-editor36 users -
The best Translator for your new Thunderbird 78!
Available also for your Firefox web browser.1,198 users
See all 396 extensions in Message and News Reading »
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