Privacy and Security
Highlight External Addresses Requires Restart
This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.
SecondOpinion Requires Restart
This extension implements a convenient way to check and upload attachments against VirusTotal.com
Copy Folder Requires Restart
The missing Thunderbird "copy folder" feature! Copy folders or entire POP/IMAP accounts recursively to any location while maintaining folder structure.
confirm-mail Requires Restart
InfoNotary Configurator for Mozilla Requires Restart
Configures Mozilla for work with certificates issued by InfoNotary Plc.
Automatically apply settings recommended by security and privacy experts.
TracEmail Requires Restart
A tool to raise awareness on email privacy. Visualizes the estimation of the path of your email messages on an interactive map. You can see which countries might have taken a copy of the message.
Stego Block Requires Restart
Embeds a small secondary, encrypted message in an email, known as a Stego Block.
Sensitivity Header Requires Restart
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
This allows the user to select Private / Personal / Company-Confidential (or none) for an outgoing message.
Spamato4Thunderbird Requires Restart
A multi-faceted, collaborative approach against spam.
eelpout Requires Restart
The anti-phish. An informative phishing detection...
CallingID Link Advisor Requires Restart
CallingID Link Advisor verifies the links you see in Firefox and Thunderbird are safe before you follow them. When the mouse is placed over any link a risk assessment and the full details of the site owner are displayed, helping you evaluate the...
Message Level Authentication Requires Restart
Authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank. Registration is FREE but not required...
Export All Certificates Requires Restart
Adds an option to export all root certificates.
A Better S/MIME GUI Requires Restart
Provides a better S/MIME GUI for Thunderbird.
pass-manager Requires Restart
Replace integrated password managers storage with zx2c4's pass (www.passwordstore.org)
Bitmask Thunderbird Extension Requires Restart
After installing the extension, do the following:
1. Make sure that Bitmask is running and you are logged in.
2. In Thunderbird, click the main menu, then "Preferences" - "Account Settings".
3. Click "Account Actions" - "New Bitmask Account...".
EuropeanMX Spam Reporter Requires Restart
Train your EuropeanMX filter by reporting unrecognized spam or false-positives back to us.
Purge Events Requires Restart
Purge events from Sunbird and Lightning calendars
Spoof Detector Requires Restart
Extension for Email Spoofing Detection