Add-ons
Privacy and Security
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Spoof Detector
Thunderbird Pedophile Reporter
Requires Restart
This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.
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".
Reply All Control
Requires Restart
Allows you to disable the ability to use Reply All when your email address does not appear in the To: or CC: fields. This usually means you've been BCC'd and Reply All might reveal the sender's sinister plot.
Disable about:config
Requires Restart
Disable about:config feature of Firefox and Thunderbird.
ToggleFullHeaders
Requires Restart
Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.
my site 1.0
Don't Send Linked Files
Requires Restart
Prevents sending of linked files if they are file: URLs.
enMailing for Thunderbird
acus
Update 2023: This addon will be replaced by "arcus".
Modern encryption in Thunderbird
** Currently in testing phase **
What you can do:
1. Set your secret key and automatically decrypt emails
2. Generate a new key pair
3. Encrypt plain text
ReloadPAC
Requires Restart
Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).
Safelinks Cleanup
Cleans up Outlook’s “safelinks” tracking.
Minimal code to allow for easy auditing of the add-on. The only code is:
https://github.com/Cimbali/safelinks-cleanup/blob/main/src/background.js
Soapy
Requires Restart
Bypasses DNS-based censorship
NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.
regimail
AddOn for sending regimail with Thunderbird on Windows, MacOS 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.
Cypherdog Encryption
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.
Changelogger
Sensitivity Header + SPX
Requires Restart
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances
To create your own collections, you must have a Mozilla Add-ons account.
