Up & Coming Extensions

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Web Translate

The best Translator for your new Thunderbird 78!
Available also for your Firefox web browser.

Rated 5 out of 5 stars (2)
917 users

Message Header Toolbar Customize

You can change icon display and button order. You can also hide unnecessary buttons.

Rated 5 out of 5 stars (18)
1,671 users

Toggle Headers

Allows to switch between the normal header view and viewing all headers when viewing a message by using a keyboard shortcut (Ctrl+H).

Rated 4 out of 5 stars (10)
997 users

Quote Colors (Tb 68, 78)

Configure text and background colors of quotes in mail and news messages.

Rated 5 out of 5 stars (4)
1,349 users

Compact Headers

Limits displayed headers to 1 or 2 lines.

Rated 4 out of 5 stars (24)
5,149 users

Dictionary for recipient

Sets the spell check dictionary based on the first recipient

Not yet rated
1,867 users

DKIM Verifier Featured

Verifies the DKIM-Signature of an e-mail.

Rated 4 out of 5 stars (28)
8,433 users

Phoenity Icons

Phoenity icons for Thunderbird

Rated 5 out of 5 stars (29)
8,228 users

MailHops

MailHops maps the route an email took to get to you. Displaying the senders location, weather, user-agent and authentication used.

Rated 4 out of 5 stars (32)
1,179 users

QuickFolders (Tabbed Folders)

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!

Rated 5 out of 5 stars (157)
11,829 users

QNote

Add notes to your e-mails. Drop-in replacement for XNote++ with more features.

Rated 5 out of 5 stars (29)
1,279 users

BorderColors D

Shows a colorful border around the "New Message" window, so you can tell different identities apart.

Builds on the original BorderColors and the "GT" version, adding different border styles.

Rated 3 out of 5 stars (13)
3,592 users

Monterail Full Dark 2 for TB>68

Monterail Full Dark, a Thunderbird theme inspired by the mockup of Monterail

Rated 4 out of 5 stars (15)
2,577 users

EditEmailSubject (Edit email Subject)

This module allows you to change/edit email subjects

Rated 4 out of 5 stars (91)
5,990 users

Menu Wizard Requires Restart

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Rated 5 out of 5 stars (251)
1,315 users

Google Calendar Tab

Adds a button to open Google Calendar in a new Tab

Rated 5 out of 5 stars (8)
7,756 users

Phoenity Buttons

Adds some toolbar buttons using phoenity icons.

Rated 4 out of 5 stars (15)
3,042 users

Night and Day Dynamic

A theme that switches between sun and moon based on time of day.

This is the canonical example dynamic theme published by Mozilla: https://github.com/mdn/webextensions-examples/tree/master/dynamic-theme

Rated 4 out of 5 stars (1)
1,667 users

*cloud - FileLink for Nextcloud and ownCloud Featured

Upload large attachments to your Cloud and send the link by email

Rated 5 out of 5 stars (16)
9,295 users

Quick Folder Key Navigation

This extension makes it possible to quickly navigate to a particular folder in the folder pane simply by typing the first few letters of the folder name when the folder pane has focus.

Rated 3 out of 5 stars (8)
1,038 users