Add-ons
Privacy and Security
-
DKIM Verifier
Verifies the DKIM-Signature of an e-mail.
13,316 users
Most Popular See all »
-
OpenPGP message encryption and authentication for Thunderbird.74,528 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,453 users -
Check the message contents and addresses before you send the message...19,030 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).12,088 users
Top Rated See all »
-
Adds metadata and sortable tags to the password manager.26 users
-
Adds the ability to create and edit entries in the password manager.581 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"31 users -
Create and Save or Send Multiple Individual and Personalized Messages from a Draft70,453 users
-
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/5,930 users -
Removes comment, display name automatically from addresses before sending mail.1,030 users
Recently Added See all »
-
Updates the local OpenPGP Alias file from a server to simplify encryption for mailing lists, or email aliases in an organizational environment.
Please make sure config parameter "mail.openpgp.alias_rules_file" is set to "openpgp_alias.json".25 users -
- SPAM Header Checker for OCN(Japanese Internet Provider)
- This plugin looks at the header of the mail and assigns a "junk mail" mark.
- Only if the header (X-CON-SPAM-CHECK) of the mail is set to 100%, it will be marked as "spam".23 users -
Just Report It (https://justreport.it) is an email plugin which tackles spam the right way. Report emails straight to SpamCop, the Registrar, a custom email address or any combination in between!194 users -
Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.87 users -
When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.349 users -
Quick & easy PGP encryption / decryption tool
* Save & use many public encryption keys to encrypt mail content
* Save & use many private decryption keys to decrypt mail content
Using openPGP.js
Open Source
https://github.com/pgpgeek/pgpgeek166 users
See all 157 extensions in Privacy and Security »
To create your own collections, you must have a Mozilla Add-ons account.
