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Layout Switcher Requires Restart

Switches the mail layout to 'wide view' when on a large enough monitor.

Rated 4 out of 5 stars (6)
44 users

Hyperactive Requires Restart

Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.

Rated 4 out of 5 stars (1)
2 users

Get Partial Messages Requires Restart

Get the rest of all partially downloaded messages from server.

Rated 5 out of 5 stars (3)
31 users

Undigestify Requires Restart

Undigestify RFC 1153, ListStar, and Yahoo digest messages

Not yet rated
1 user

RemindIt

Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.

Rated 3 out of 5 stars (27)
803 users

NoComposeAccount Requires Restart

Have the option of Thunderbird always using the default sender account or a blank account when composing or replying to messages

Rated 4 out of 5 stars (16)
123 users

Delete Trash Button Requires Restart

Adds an Empty Deleted button to the Toolbar

Rated 4 out of 5 stars (10)
111 users

QuickNote-T Requires Restart

A note taking extension with advanced features.

Only QuickNote is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.

Rated 5 out of 5 stars (1)
28 users

White Screen

Use white screen test to detect dead pixels, stuck pixels, and other display defects.

Not yet rated
15 users

Black Screen

Use black screen test to detect dead pixels, stuck pixels, and other display defects.

Not yet rated
32 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 3 out of 5 stars (2)
1,336 users

ProtonMail Encryption Status

When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.

Rated 5 out of 5 stars (5)
639 users

EagleCloud Extension

Works along with EagleCloud Information Security product to secure sensitive information based on company policy.

Not yet rated
3 users

cb_thunderlink

cb_thunderlink is a thunderlink replacement.
Clickable, durable links to specific messages inside Thunderbird.

Rated 5 out of 5 stars (6)
345 users

ThunderbirdCR (Dictionary) Requires Restart

Context Reverso for Thunderbird.
A translator/dictionary available to English, Spanish, French, German, Italian, Portuguese Dutch, Polish, Romanian, Arabic, Chinese, Japanese, Hebrew, Russian, Turkish.

Hotkey: Search selected texts (Shift+F1)

Not yet rated
55 users

Changelogger

Gets changelogs for updated addons

Not yet rated
37 users

Open Google Voice

Opens Google Voice In A New Thunderbird Tab

Rated 4 out of 5 stars (3)
152 users

Real sender of italian PEC

Shows real sender of italian certified emails (PEC) into the table that lists emails.

Not yet rated
4 users

Articles Toolbar

Adds the Articles toolbar

Not yet rated
22 users

WhatsApp Web in Thunderbird

Open WhatsApp Web in Thunderbird

Rated 4 out of 5 stars (18)
3,520 users