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Empty Folder

Adds a context option to mail folders for moving all included messages to trash.

Rated 4 out of 5 stars (13)
264 users

Thunderbird Todoist

Extension to add emails as tasks to Todoist.

Rated 5 out of 5 stars (10)
1,138 users

Expand mailing lists

Adds an 'expand lists' button to the compose window. It replaces all mailing lists with their contacts.

Rated 5 out of 5 stars (2)
707 users

Add to Mailing list

Add the current email (sender) to an existing mailing list.

Rated 2 out of 5 stars (4)
485 users

KeepRunning

Once you close Thunderbird you will no longer be able to see your new emails. This plugin keeps Thunderbird active in the background, meaning you can still receive your new emails after closing the app. Use this when the app is in the startup.

Rated 5 out of 5 stars (6)
1,577 users

Unsubscribe

Lightweight solution to simplify unsubscribing from newsletters

Rated 3 out of 5 stars (16)
1,810 users

SpoofDetection

Diese Erweiterung überprüft ungelesene E-Mails auf Spoofingversuche. Die E-Mails werden mithilfe von fünf unterschiedlichen Tests untersucht um deren Legitimität festzustellen. Die Tests werden einzeln erklärt auf der Einstellungsseite.

Rated 4 out of 5 stars (1)
106 users

SPAM Check for OCN

- SPAM Header Checker for OCN(Japanese Internet Provider)
- This plugin looks at the header of the mail and assigns a "junk mail" mark.
- Only if the header (X-CON-SPAM-CHECK) of the mail is set to 100%, it will be marked as "spam".

Rated 1 out of 5 stars (1)
59 users

KundenMeister CRM Mail Export

An mail export add-on from KundenMeister to export the mails from user to KundenMeister portal after authentication.

Rated 4 out of 5 stars (6)
35 users

QuickOWL

Quickly Open Web Links using custom context menu with selected text as input

QuickOWL saves one's time in copying text from email and pasting in browser page to do some action or searching.

Rated 5 out of 5 stars (1)
79 users

Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

Rated 5 out of 5 stars (3)
242 users

Mark Read on Reply

Mark messages as read when you reply to them.

Rated 5 out of 5 stars (2)
137 users

YouTube RSS feed redesign

Adds YouTube thumbnails to RSS feed entries

Rated 5 out of 5 stars (1)
76 users

Thunderbird OpenProject

Extension to add tasks to OpenProject

Rated 3 out of 5 stars (3)
82 users

Audio Preview

Adds a preview for audio files (wav, ..) to the message view, so it can be played directly.

Not yet rated
115 users

Quick Spaces

Makes it possible to add custom addresses to the spaces toolbar

Rated 4 out of 5 stars (4)
56 users

Google Mail Tab

Button to open Google Mail, supports multiple accounts. Useful if you need to configure mail settings, filters or forwarding in Gmail.

Not yet rated
11 users

List Unsubscribe

Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.

Rated 4 out of 5 stars (3)
149 users

quickfilter-kbd

A simple Thunderbird extension that adds keyboard shortcuts to quick-filter messages with the same sender, subject, or recipient as a selected message.

Rated 5 out of 5 stars (2)
59 users

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.

Rated 3 out of 5 stars (4)
190 users