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DS-BCC

Data protection extension, to avoid data mishaps with circular mails:

1. warning for e-mail with multiple recipients not in BCC (exceptions possible)
2. warning for roundmails with a different recipient domain
3. warning if PGP key is present

Not yet rated
79 users

Attachment Saver

Saves all attachments from multiple selected emails as a single zip file.

It provides an extra option in your context menu when selecting emails.

Rated 5 out of 5 stars (10)
932 users

Cypherdog Encryption

Encrypt any file, any text, and share via any medium, any time

Not yet rated
33 users

Addon Compatibility Check for TB 102/TB 115/TB 128

Checks all installed add-ons for compatibility with Thunderbird 128 (or TB 102/115) and displays status information on a button in the main toolbar. This button will open a detailed overview, including links to alternatives for abandoned add-ons.

Rated 4 out of 5 stars (11)
14,908 users

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)
180 users

Aranese spell checker

Aranese (Occitan) spell checker - Diccionari ortogràfic d'Aranés

Not yet rated
15 users

ThunderThings

Integration between Thunderbird and Cultured Code's Things application.

Rated 4 out of 5 stars (3)
15 users

Export to ZIP

Export your mails and folders to a zip file!

Rated 2 out of 5 stars (13)
1,960 users

sms77

Send SMS via sms77

Not yet rated
81 users

Send then Archive

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

Rated 2 out of 5 stars (5)
28 users

Metamorfik

The Altium Forums are the best way to participate in discussions, share tips, ask/answer questions and locate resources.

Not yet rated
1 user

Config Button

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

Rated 5 out of 5 stars (3)
1,335 users

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)
3,355 users

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).

Rated 3 out of 5 stars (1)
199 users

ThunderAI (ChatGPT, Gemini, Ollama in your emails)

ThunderAI uses the capabilities of ChatGPT, Google Gemini or Ollama to enhance email management.
It enables users to analyse, write, correct, assign tags, create calendar events and optimize their emails.

Rated 5 out of 5 stars (16)
3,126 users

Antidote connector

Use Antidote directly where you are writing! Run a text through the corrector and the changes you make will automatically be applied to the original text in Thunderbird. (You must have access to Antidote.)

Not yet rated
773 users

Mark Subfolders Read

Adds a context option to folders for marking all contents of the selected folder and all subfolders as read.

Rated 4 out of 5 stars (2)
92 users

Zulip - Quick Access

Quick Access to Zulip in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Not yet rated
5 users

Webpage Opener

Adds a button to the toolbar to open a user defined webpage.

Rated 5 out of 5 stars (1)
38 users

Antispam

Sending email to the Antispam database

Not yet rated
16 users