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Send Unsent Mail Button

Toolbar button to send unsent messages.

Rated 5 out of 5 stars (2)
285 users

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
64 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)
849 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
620 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)
83 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
4 users

Webpage Opener

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

Rated 5 out of 5 stars (1)
35 users

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)
41 users

BCM Bengali (Bangladesh) Spellchecker

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

Not yet rated
8 users

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 (14)
2,438 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).

Not yet rated
196 users

ThunderThings

Integration between Thunderbird and Cultured Code's Things application.

Rated 4 out of 5 stars (3)
14 users

Send then Archive

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

Rated 2 out of 5 stars (5)
25 users

sms77

Send SMS via sms77

Not yet rated
75 users

Thunderbird Send

[Alpha Testing] Thunderbird send allows sending and receiving end to end encrypted files.

This add-on is undergoing testing and not yet available to the general public.

Rated 1 out of 5 stars (1)
29 users

Antispam

Sending email to the Antispam database

Not yet rated
12 users

AutoZoom

AddOn to save a text zoom for eMail text editor.

Rated 5 out of 5 stars (2)
59 users

OUWI - Quick Access

This extension adds a simple button to your Spaces toolbar that opens in a new tab, providing you with one-click access to your Open WebUI Instance.

Not yet rated
1 user

Open in browser

A context menu item to open the links associated with feed items in the default browser and then mark them as read.

Rated 5 out of 5 stars (1)
307 users

Archive old messages

A context menu item to archive all messages than older than a given duration.

Not yet rated
410 users