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OpenAttachmentByExtension

Open the attachment by extension and not by mimetype

Rated 5 out of 5 stars (3)
861 users

Inoreader Thunderbird Add-on

A simple add-on with a button in the Spaces toolbar.

Requires an account a inoreader.com

Rated 3 out of 5 stars (1)
3 users

To must occur only once

This add-on changes all but the first "to" to "cc" if there are multiple "to" when replying to an email.

Rated 5 out of 5 stars (1)
23 users

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)
122 users

Thread in same folder

Runs after junk classification and filtering to make sure a newly-received message lands in the same folder as its parent in a thread.

Not yet rated
56 users

AWO Zipper 2

Dieses addon ist eine interne Entwicklung der AWO Bonn/Rhein-Sieg. Sie sollte nur auf betriebseigenen Geräten installiert werden.

Voraussetzungen: Es müssen 7-zip und die AWOZipperNativeComponent installiert sein!

Not yet rated
9 users

Seams

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.

Rated 5 out of 5 stars (2)
31 users

InsertSignature

Insert signature helps you to insert usually used text by your customization.

Rated 4 out of 5 stars (13)
1,474 users

Pywalfox

Dynamic theming of Thunderbird using your Pywal colors.

https://github.com/Frewacom/pywalfox

Rated 3 out of 5 stars (6)
297 users

Arcus

Modern encryption in Thunderbird - powered by Rust, rage and WebAssembly

Rated 5 out of 5 stars (2)
16 users

TuLPe

Traffic light protocol extension for Thunderbird, messages are customizable in the option page.

Not yet rated
23 users

Spellchecker Rumantsch Vallader

Spellchecker for Rumantsch Vallader

Not yet rated
7 users

Spellchecker Rumauntsch Puter

Spellchecker for Rumauntsch Puter

Not yet rated
2 users

CloneMessage

When composing an email, CloneMessage allows you to duplicate the current state of the email.

Rated 5 out of 5 stars (1)
165 users

Safe Links Cleaner

Clean up the display of links rewritten by Microsoft ATP Safe Links when reading and composing mail, so the original links can easily be viewed and copied, while retaining the rewritten addresses as the actual target of all links.

Rated 4 out of 5 stars (2)
124 users

New Tab

It's Open New Tab Within ThunderBird

Rated 5 out of 5 stars (4)
97 users

Skiff Mail

Integrates a Skiff Mail button into the Spaces toolbar. It opens the Skiff Mail website in a new tab.

Not yet rated
13 users

Dictionnaire occitan gascon

Corrector ortografic en occitan gascon entà Thunderbird.
Correcteur orthographique en occitan gascon pour Thunderbird.

Not yet rated
13 users

HTML Source Editor

Allows to edit the source of the currently composed message. A simple alternative to ThunderHTMLedit.

Rated 5 out of 5 stars (13)
3,501 users

Dropbox Paper

How Does It Work?
Once you install the add-on, a new icon will appear in the Thunderbird toolbar. Simply click on the icon, and it will open the Dropbox Paper tab.

Will the Dropbox Paper Add-on Collect My Data?
Never.

Not yet rated
42 users