Add-ons
Privacy and Security
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DKIM Verifier
Verifies the DKIM-Signature of an e-mail.
14,737 users
Most Popular See all »
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Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,136 users -
Securely encrypt and upload large attachments to any Send service instance (formerly Firefox Send).26,626 users -
Check the message contents and addresses before you send the message...19,939 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).16,578 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/7,812 users -
Adds metadata and sortable tags to the password manager.10 users
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Adds the ability to create and edit entries in the password manager.325 users -
Adds optional columns to the Thread Pane to allow sorting email messages by:
* Full sender address -- e.g. "[email protected]"
* Sender's domain -- e.g. "example.com"
* Sender's local part -- e.g. "someone"
* Sender's TLD -- e.g. ".com"6 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.1,018 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,136 users
Recently Added See all »
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Data protection extension, to avoid data mishaps with circular mails:
1. warning for e-mail with multiple recipients not in BCC (exceptions possible)
2. warning for roundmails with a different recipient domain
3. warning if PGP key is present24 users -
Fixes encrypted e-mail attachment names from PGP Universal servers42 users
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SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.36 users -
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.2 users
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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.127 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 text6 users
See all 168 extensions in Privacy and Security »
To create your own collections, you must have a Mozilla Add-ons account.
