Add-ons
Privacy and Security
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Auto Address Cleaner
Remove comment, display name from addresses before sending mail.
Junk Mail ByeBye
This extension identifies and protects you from spam emails, phishing emails, and other unwanted messages. It is primarily targeted towards filtering out spam in Japanese.
Logout
This extension adds "Logout" to the folders/accounts context menu.
After you "Logout" you will be asked again for passwords for this account (incoming and outgoing) without the need to restart thunderbird.
Check before sending email
Before sending an e-mail, a pop-up window clearly displays check items such as the destination address, body text, and attached files, prompting the sender to confirm before sending the e-mail.
Rspamd-spamness
MetaClean for Thunderbird
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.
Clear History Button
Adds a button to launch the Clear History dialog
Allow HTML Temp
Allows to have HTML temporarily enabled (and displayed) in the currently selected message by only one click. When switching to another message, it'll be shown automatically again in plain text or simple html mode (according to your settings).
List Unsubscribe
Adds a button to unsubscribe from newsletters and other bulk email that has the List-Unsubscribe header.
AlertSwitch
Simply turn on or turn off the alerts shown & sounds played when new message arrives.
Check and Send
Check the message contents and addresses before you send the message...
SPAM Check for OCN
- 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".
TUD-CERT Phishing Report
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.
OpenPGP Alias Updater
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".
vault56 protection
vault56 protection protects against potentially malicious attached files and links. Links are rewritten to pass through vault56 URL protection servers and checked for trackers and malicious activity.
Just Report It
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!
SPAMBEE
Report any unsollicited email (SPAM, Phishing, ...) to SPAMBEE.
Get an alert if you open an email containing a URL already known as fraudulent.
All reports are anonymized, no registration is required.
Signal Spam
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).
FlexConfirmMail
Confirm mail address and attachments based on flexible rules.
(This project was renamed from "Flex Confirm Mail" to "FlexConfirmMail", due to a branding reason.)
MailHops
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.
