Privacy and Security
Sort by:
Allow HTML Temp
Requires Restart
This Add-on allows to have HTML temporarily allowed in the currently displayed message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (if this is your default mode).
Confirm-Address
Requires Restart
Confirm E-mail address before sending mail
Thunderbird-DontRestoreTabs
Requires Restart
Allows the user not to restore tabs at startup in Thundertbird
MEGAbird
Requires Restart
Add MEGA support to Thunderbird's Filelink feature.
Enigmail
Featured
OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.
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.
TORPEDO - TOoltip-poweRed Phishing Email DetectiOn
Requires Restart
TORPEDO ist ein Tool zum Erkennen von betrügerischen Links (Phishing). Bewegen Sie die Maus über einen Link in einer Email. TORPEDO zeigt Ihnen die tatsächliche Webadresse in einem Tooltip an und hilft Ihnen, diese zu untersuchen.
KeeBird
Requires Restart
Use KeePass Password Safe to manage your login credentials.
This is the replacement for the KeeFox extension for Thunderbird.
Signal Spam
Requires Restart
Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).
Remote Content By Folder
Decide whether to allow or block remote content in messages by comparing the names of the folders in which they are located to configured regular expressions.
WarnAttachment
Requires Restart
WarnAttachment shows an additional dialog to confirm potentially dangerous attachments. Some attachments like executables etc. are completely blocked. This reduces the risk of malware especially for inexperienced users.
Don't Send Linked Files
Requires Restart
Prevents sending of linked files if they are file: URLs.
Master Password+
Requires Restart
Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows
TorBirdy
Requires Restart
This extension configures Thunderbird to make connections over the Tor anonymity network.
Esign
Requires Restart
Электронная подпись для сообщений в Thunderbird на основе API клиента "ГУЦ"
Classic Password Editor
Requires Restart
Adds the ability to create and edit entries in the password manager.
AlertSwitch
Requires Restart
Turn on/off the alert shown when new message arrives.
Identity Chooser
Requires Restart
Identity Chooser helps you to always use the correct identity when composing a new email.
Check and Send
Requires Restart
Check the message contents and addresses before you send the message...
MailHops
Requires Restart
MailHops maps the route an email took to get to you. Displaying the senders location, weather, user-agent and authentication used.
To create your own collections, you must have a Mozilla Add-ons account.