Appearance and Customisation

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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

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

Start with Inbox

Selects the latest message in the Inbox after start of Thunderbird.

Rated 4 out of 5 stars (18)
1,097 users
Updated March 5, 2024

Tag Sync for TB

Syncronise/transfer tags, to other TB installations.

POP and some IMAP servers don't store tags (keywords).
This addon helps to have the same emails tagged on all TB installations.
Uses a central database, can be installed on your PC or server.

Not yet rated
13 users
Updated Feb. 28, 2024

RainbowNote

Notes with rainbow colors.
7 notepads are utilized as several memos if needed.
Or, these 7 notepads are used by days of the week.

February 28th 2021.

Sungho Hwang.

I love God.

Rated 4 out of 5 stars (1)
154 users
Updated Feb. 27, 2024

Mark Button

Toolbar button to mark a message as read or unread with 1 click.

Rated 5 out of 5 stars (3)
104 users
Updated Feb. 11, 2024

Quick Spaces

Makes it possible to add custom addresses to the spaces toolbar

Rated 5 out of 5 stars (1)
32 users
Updated Jan. 27, 2024

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 (1)
35 users
Updated Jan. 25, 2024

Toggle Summary

Adds a Toggle Summary button

Rated 5 out of 5 stars (1)
76 users
Updated Jan. 17, 2024

Phoenity Icons

Phoenity icons for Thunderbird

Rated 5 out of 5 stars (67)
16,278 users
Updated Jan. 17, 2024

archive-by-time

With the filter function comes with thunderbird, all emails met rules will be moved to a specific folder. As time passed the folder would grew bigger and I wanted to put all emails into sub folders classified by year.

Not yet rated
97 users
Updated Jan. 11, 2024

Attachment Viewer: view in a tab, slideshow

View attachments in TB
Images, office files, mp3, mp4
Use Dropbox viewer for 175 file types (in v3)
* Docx, xlsx, pptx, pdf preview
* Slideshow of images
* Zoom/drag to position
* Rotate/flip image
* Download dialog with thumbnail of image

Rated 4 out of 5 stars (20)
4,328 users
Updated Jan. 10, 2024

Signature sync for Gmail

This extension allows you to automatically use your signature from Gmail accounts in Thunderbird. No longer need to maintain two separated signatures!

Rated 4 out of 5 stars (6)
1,198 users
Updated Jan. 4, 2024

ThunderSuite - Customize your Quick Access Sidebar

This extension allows user editing of the spaces sidebar.
Create custom spaces from the extension options, to turn the new toolbar introduced with Supernova into your personal quick access toolbox.

Rated 5 out of 5 stars (4)
250 users
Updated Dec. 22, 2023

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.

Rated 3 out of 5 stars (4)
129 users
Updated Dec. 18, 2023

Articles Toolbar

Adds the Articles toolbar

Not yet rated
23 users
Updated Dec. 16, 2023

changeQuote

It's an extension that changes the format of reply header.
You can choose between the standard Thunderbird reply header, a detailed reply header or a Customized reply header.
You can configure it in the Tools ->Add-on Preferences -> changeQuote.

Rated 4 out of 5 stars (21)
1,414 users
Updated Dec. 11, 2023