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SpamTester

SpamTester allows you to test the spam score of your email using popular anti-spam software (SpamAssassin, Rspamd...). This is useful to know if your email will fall into the recipient's spam (or even get your mail server blocked).

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196 users

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Send Unsent Mail Button

Toolbar button to send unsent messages.

Rated 5 out of 5 stars (2)
276 users

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ThunderThings

Integration between Thunderbird and Cultured Code's Things application.

Rated 4 out of 5 stars (3)
11 users

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sms77

Send SMS via sms77

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74 users

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Filter Manager

Adds a Filters Button, opens Filter Manager

Rated 5 out of 5 stars (7)
1,966 users

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No tabs

Hides the tab bar and automatically removes all inactive tabs everytime a tab is opened or switched to.

Rated 5 out of 5 stars (7)
159 users

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ShowContactFoto

Displays the contact photo/image/picture of the sender/recipients while reading/composing message.
Images are taken from local image files or Address Book (see addon's options page).

Rated 4 out of 5 stars (2)
39 users

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Send then Archive

Automates the process of archiving a message that has been replied to.

Rated 2 out of 5 stars (5)
26 users

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Telegram Web in Thunderbird

Open Telegram Web in Thunderbird

Rated 5 out of 5 stars (5)
753 users

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FileLink for Plik

Plik no longer offers uploads without an account. So the add-in currently only works for self-hosted instances of the software. Currently I cannot promise a date for a fix. Sorry.

Rated 5 out of 5 stars (4)
3,462 users

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Autofile - fast e-mail to folder filing

Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed. Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.

Rated 4 out of 5 stars (5)
290 users

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Scriptable Notifications

Allows you to define an external script (bash, batch, python, ...) which is called so you can manage mail notifications / alerts the way you want.

Snap/Flatpak versions of Thunderbird not supported.

Rated 5 out of 5 stars (2)
284 users

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Export to ZIP

Export your mails and folders to a zip file!

Rated 3 out of 5 stars (12)
1,930 users

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Console messaging example

Console messaging example add-on

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3 users

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Context menu on message allowing quick filtering based on email/sender or domain

Rated 5 out of 5 stars (7)
1,320 users

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Just Report It

Just Report It (https://justreport.it) is an email plugin which tackles spam the right way. Report emails straight to SpamCop, the Registrar, a custom email address or any combination in between!

Rated 5 out of 5 stars (14)
798 users

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Config Button

Adds a Config button, opens about:config in a tab.

Rated 5 out of 5 stars (3)
1,326 users

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Safelink removal

Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.

Rated 5 out of 5 stars (2)
173 users

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BCM Bengali (Bangladesh) Spellchecker

Spellchecker for Bengali (Bangladesh) following Bangla Academy and Prothom Alo standards: See https://banglatypefoundry.com/spellchecker/

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7 users

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ThunderAI (ChatGPT or Ollama in your emails!)

ThunderAI uses the capabilities of ChatGPT or Ollama to enhance email management.
It enables users to analyse, write, correct, and optimize their emails.

Rated 5 out of 5 stars (13)
1,821 users

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