Recently Updated Extensions

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Microsoft 365 Link Opener

Open a shared link of a SharePoint or OneDrive file directly with the right app, instead of the browser.

Rated 5 out of 5 stars (1)
94 users
Updated March 27, 2024

Additional Info for Simplelogin

For e-mails forwarded by Simplelogin, a pop-up displays the original sender of the e-mail, as well as the alias that the e-mail was sent to and the address that it was forwarded to.

Not yet rated
37 users
Updated March 27, 2024

Next Unread Group (Mark All Read)

Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message

Rated 5 out of 5 stars (3)
105 users
Updated March 27, 2024

Next Unread Thread (Mark All Read)

Adds a Thread button, marks current thread or conversation as read and moves to the next unread message

Rated 5 out of 5 stars (4)
105 users
Updated March 27, 2024

Expression Search - NG

Powerful message search:

* Fuzzy search: Sylvia also finds Silvia
* Visual search query builder

* Type "f:fred fn:Vortrag" for messages from Fred, attachment name contains 'Vortrag'
* Type "t:(oo -pp)" for messages to oo, but not pp.

Rated 4 out of 5 stars (41)
2,421 users
Updated March 27, 2024

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 1 out of 5 stars (1)
177 users
Updated March 27, 2024

Correct Identity

Ever sent mail from the wrong email address because you forgot to select the correct identity?

Rated 4 out of 5 stars (119)
2,159 users
Updated March 27, 2024

Header Tools Improved

Allows to modify headers and source of messages

Rated 5 out of 5 stars (36)
2,312 users
Updated March 27, 2024

Grammar and Spell Checker — LanguageTool

Check your emails for spelling and grammar issues

Rated 4 out of 5 stars (29)
59,403 users
Updated March 27, 2024

Toggle Inline

Adds a Toggle Inline button

Rated 5 out of 5 stars (1)
96 users
Updated March 18, 2024

Compact Headers

Limits displayed headers to 1 or 2 lines.

Rated 4 out of 5 stars (67)
10,955 users
Updated March 18, 2024

Dysclusif

Simplifier la lecture de mails en supprimant l'écriture inclusive

Rated 5 out of 5 stars (1)
8 users
Updated March 18, 2024

regimail

AddOn for sending regimail with Thunderbird on Windows, MacOS and Linux.

*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.

Not yet rated
13 users
Updated March 18, 2024

CardBook Featured

A new Thunderbird address book based on the CardDAV and vCard standards.

Twitter: @CardBookAddon

Rated 4 out of 5 stars (439)
75,362 users
Updated March 18, 2024

Extract 'Em! Featured

Extracts attachments from messages within an account or folder, with the option to select specific attachments. Extracted attachments are saved to a .zip file.

Rated 5 out of 5 stars (1)
344 users
Updated March 18, 2024

SmartProxy

SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.

Rated 5 out of 5 stars (1)
192 users
Updated March 16, 2024

10ten Japanese Reader (Rikaichamp)

Look up Japanese words with the hover of a mouse.

After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.

Rated 5 out of 5 stars (4)
169 users
Updated March 12, 2024

ObsidianClipper

ObsidianClipper is a Thunderbird extension to clip emails to the Obsidian notetaking application. Save an email to Obsidian seamlessly with one click. Customize the format of new note titles and note layout.

Rated 5 out of 5 stars (3)
145 users
Updated March 12, 2024

Owl for Exchange

Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).

Rated 5 out of 5 stars (190)
47,770 users
Updated March 7, 2024

Multimonth view

Multimonth View allows users to display multiple months in a single calendar view,

Rated 1 out of 5 stars (3)
18 users
Updated March 5, 2024