Privacy and Security
Security Settings from Address Book Requires Restart
Sets message security (sign/encrypt) when sending or saving messages based on recipients' address book entry's field "Custom1".
Clear IMAP Local Cache Requires Restart
Clears IMAP local cache on startup.
KeePass Helper Requires Restart
Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.
Force Authentication at Startup. Requires Restart
Always ask password and hide UI at the startup.
ShowIP Requires Restart
Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.
Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager
ToggleFullHeaders Requires Restart
Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.
GNOME keyring password integration Requires Restart
Extension that allows Firefox and Thunderbird to store passwords in Keyring, Gnome's default password store.
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.
MailSentry IronPort Spam Reporter Requires Restart
Report spam and ham to IronPort - originally written for our MailSentry hosted IronPort customers, it can be used by anyone who has their email filtered by an IronPort appliance.
Massey Omura Cryptosystem Requires Restart
Add On Keamanan EMail dengan Massey Omura Cryptosystem
Key Manager Requires Restart
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
XML Digital Signature Tool Requires Restart
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)
Channel Guard Requires Restart
Channelguard disables plugins and protocol handlers to ensure maximum security against side-channel attack.
Don't Send Linked Files Requires Restart
Prevents sending of linked files if they are file: URLs.
Close Proxy Authentication Requires Restart
Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.
Check and Send Requires Restart
Check the message contents and addresses before you send the message...
Unsubscribe from Mailing List Requires Restart
Allows recipients to cancel their newsletter subscriptions in the thunderbird interface.
Encrypt if possible Requires Restart
Sets message security option "encrypt message", if valid X509 certificates are found for all recipients.
Enigma-code Requires Restart
Proste i szybkie szyfrowanie korespondencji e-mail, jak i dowolnego tekstu. Algorytm szyfrowania oparty na sposobie szyfrowania maszyny Enigma.