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Paranoia

Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)

Rated 4 out of 5 stars (14)
664 users

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TORPEDO - TOoltip-poweRed Phishing Email DetectiOn

TORPEDO ist ein Tool zum Erkennen von betrügerischen Links (Phishing). Bewegen Sie die Maus über einen Link in einer Email. TORPEDO zeigt Ihnen die tatsächliche Webadresse in einem Tooltip an und hilft Ihnen, diese zu untersuchen.

Rated 5 out of 5 stars (9)
1,496 users

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Rspamd-spamness

Rspamd spam filtering system score visualization.

Rated 4 out of 5 stars (8)
1,023 users

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FolderFlags

Allows users to edit the flags Thunderbird sets on folders.

Rated 5 out of 5 stars (24)
3,512 users

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Copy Message ID

Adds a button to the message view toolbar to copy the message ID to the clipboard. This is useful when sending email replies via the command line.

Rated 5 out of 5 stars (3)
333 users

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X-Unsent support

Adds support for the X-Unsent header.

Rated 5 out of 5 stars (4)
76 users

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Auto Select Latest Message

Automatically select and display latest message from the list on startup or when switching folder.
Remember last opened message in "smart" folder

Rated 4 out of 5 stars (42)
144 users

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More Snooze

This add allow to customize the snooze delay when snooze popup appears (lightning required).

Rated 5 out of 5 stars (10)
726 users

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Evernote Tab

Add a button and a menu to open Evernote in tab.

Rated 3 out of 5 stars (9)
487 users

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Macro Template

Macro Template is to replace mail templates with macros for date formatting.

Rated 5 out of 5 stars (9)
520 users

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AlertSwitch

Simply turn on or turn off the alerts shown & sounds played when new message arrives.

Rated 3 out of 5 stars (7)
744 users

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Single Domain

Warns if you send mail from or to a specified domain. If there are multiple accounts in your profile, you can isolate one so that you can't send mail to that domain from outside or vis versa without warning.

Rated 5 out of 5 stars (4)
100 users

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AutoSlide

The AutoSlide addon automatically moves the splitter between the thread and the message pane in Thundbird so that the thread pane is set to a optimal height.

Rated 4 out of 5 stars (4)
100 users

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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 (12)
1,310 users

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Expertspam

Report spam, false-positives or phishing back to your antispam provider.

Rated 2 out of 5 stars (11)
162 users

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Received

Displays the "Received" header parsed with a regular expression.

Rated 5 out of 5 stars (4)
158 users

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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)
755 users

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Dark Reader

Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.

Rated 4 out of 5 stars (38)
9,962 users

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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)
670 users

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Simple Startup Minimizer

This extension will minimize Thunderbird on startup, it is very simple and I didn't put much work into it but it should work on all platforms. Please let me know if you want more features added into it.

Rated 4 out of 5 stars (30)
6,947 users

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