Add-ons
Privacy and Security
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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.
Junk Mail ByeBye
This extension identifies and protects you from spam emails, phishing emails, and other unwanted messages. It is primarily targeted towards filtering out spam in Japanese.
Check before sending email
Before sending an e-mail, a pop-up window clearly displays check items such as the destination address, body text, and attached files, prompting the sender to confirm before sending the e-mail.
Identity Selector
Always select the right identity with Identity Selector!
uBlock Origin
An efficient blocker. Easy on CPU and memory. New and updated filter list added.
List Unsubscribe
Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.
Safelinks Cleanup
Cleans up Outlook’s “safelinks” tracking.
Minimal code to allow for easy auditing of the add-on. The only code is:
https://github.com/Cimbali/safelinks-cleanup/blob/main/src/background.js
Clear History Button
vault56 protection
vault56 protection protects against potentially malicious attached files and links. Links are rewritten to pass through vault56 URL protection servers and checked for trackers and malicious activity.
uBlock Origin
Finally, an efficient blocker. Easy on CPU and memory. uBlock Origin (uBO) is a CPU and memory-efficient wide-spectrum content blocker that blocks ads, trackers, coin miners, popups, annoying anti-blockers, etc. in your feeds.
Just Verify It
Just Verify It is a Thunderbird add-on that automates the scanning of email attachments with VirusTotal for malware. With over 50 antivirus engines, it provides reliable and quick results, ensuring the safety of your digital assets.
New Bing Anywhere
New Bing isn't just for Edge anymore. Anywhere you want
Cypherdog Encryption
Encrypt any file, any text, and share via any medium, any time
Arcus
Modern encryption in Thunderbird - powered by Rust, rage and WebAssembly
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
PGP Universal
Fixes encrypted e-mail attachment names from PGP Universal servers
EagleCloud Extension
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.
TUD-CERT Phishing Report
Adds a phishing report button to the toolbar to enable members of Technische Universität Dresden to report suspicious e-mails to TUD-CERT with just a few clicks. If desired, an optional comment can be entered upon each report.
acus
Update 2023: This addon will be replaced by "arcus".
Modern encryption in Thunderbird
** Currently in testing phase **
What you can do:
1. Set your secret key and automatically decrypt emails
2. Generate a new key pair
3. Encrypt plain text
Zivver for Thunderbird
This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.
To create your own collections, you must have a Mozilla Add-ons account.
