Privacy and Security
Saved Password Editor Requires Restart
Adds the ability to create and edit entries in the password manager.
Identity Chooser Requires Restart
Identity Chooser helps you to always use the correct identity when composing a new email.
Password Tags Requires Restart
Adds metadata and sortable tags to the password manager.
Mail Merge Requires Restart Featured
Mass Mail and Personal Mail
QuickPasswords Requires Restart
Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.
Now also includes SSO change (multi-domain pw) and Backup + Restore.
Auto Address Cleaner Requires Restart
Removes comment, display name automatically from addresses before sending mail.
Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.
Block ads and manage proxy.
MEGAbird Requires Restart
Add MEGA support to Thunderbird's Filelink feature.
TrayHotKey Requires Restart
Encrypt if possible Requires Restart
Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.
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Yet Another Remove It Permanently Requires Restart
Remove elements and block content on Web pages.
S/MIME Security for Multiple Identities Requires Restart
Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3
POW -- Plain Old Webserver Requires Restart
Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.
Secure Addressing Requires Restart
This add-on provides features to avoid sending emails to wrong addresses. Key features are a confirmation window of recipient's addresses upon sending, name and affiliation look up at mail composition and main windows, and safe auto completion.
Confirm-Address Requires Restart
Confirm E-mail address before sending mail
Change Referer Button Requires Restart
Button in the toolbar/status bar to change referer value.
This extension provides various customization options for the Adblock Plus user interface.
DKIM Verifier Requires Restart
Verifies the DKIM-Signature of an e-mail.