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Thunderbird List-Unsubscribe Addon

This addon adds buttons to the mail-view toolbar and message list context menu that allow you to unsubscribe from mailing lists and similar bulk mailing services as long as they use the List-Unsubscribe header as defined in RFC2369. List-Unsubscribe-Post as defined in RFC8058 is also supported.

When you click "Unsubscribe" the addon analyzes the email and depending on available options shows buttons to one-click unsubscribe, open the unsubscribe link (in the built-in browser) or use the provided unsubscribe email address to compose a new email.

Additionally you can click the exposed link to copy it to clipboard.

Permissions required

  • messagesRead: Required to access the email headers.
  • accountsRead: Required to fetch the correct "identity" to send the unsubscribe email from.
  • clipboardWrite: Required to allow copying the unsubscribe link to clipboard.
  • menus: Required to allow modifying the message list context menu to show the unsubscribe button.
  • storage: Required to store extension options.
  • http(s)://*/*: Required for making the one-click unsubscribe requests to any URL.