Add-ons
Privacy and Security
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DKIM Verifier
Verifies the DKIM-Signature of an e-mail.
12,915 users
Most Popular See all »
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Create and Save or Send Multiple Individual and Personalized Messages from a Draft69,512 users -
Check the message contents and addresses before you send the message...20,754 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).18,098 users -
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).15,336 users -
Confirm mail address and attachments based on flexible rules.
(This project was renamed from "Flex Confirm Mail" to "FlexConfirmMail", due to a branding reason.)14,579 users
Top Rated See all »
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Remove comment, display name from addresses before sending mail.
This add-on is a fork of Auto Address Cleaner.
https://addons.thunderbird.net/thunderbird/addon/auto-address-cleaner/7,526 users -
Adds metadata and sortable tags to the password manager.13 users
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Adds the ability to create and edit entries in the password manager.366 users -
Adds optional columns to the Thread Pane to allow sorting email messages by:
* Full sender address -- e.g. "someone@example.com"
* Sender's domain -- e.g. "example.com"
* Sender's local part -- e.g. "someone"
* Sender's TLD -- e.g. ".com"16 users -
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.811 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft69,512 users
Recently Added See all »
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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.65 users -
Modern encryption in Thunderbird
** Currently in testing phase **
What you can do:
1. Set your secret key in the addon's tab page and acus will automatically decrypt incoming emails
2. Generate a new key pair
3. Encrypt plain text5 users -
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.3 users
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AddOn for sending regimail with Thunderbird on Windows and Linux.
*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.3 users -
Removes metadata and hidden data in email attachments preventing the leakage of confidential information that occurs in this type of communication and avoiding possible economic and reputational damages derived from the malicious use of metadata.190 users
See all 164 extensions in Privacy and Security »
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