EmailSignatured.
All guides

Thunderbird — 6 steps, ~2 minutes

Copy button included below
  1. 1

    Open Thunderbird and click the menu button in the top right (or Tools, on the classic menu bar).

  2. 2

    Select Account Settings.

  3. 3

    In the left panel, select the account this signature is for.

  4. 4

    Check the "Use HTML" box above the Signature text field.

  5. 5

    Paste your signature's HTML source code into the Signature text field.

    Make your signature first →
  6. 6

    Click OK to save.

Good to know

  • Check "Use HTML" before you paste. Paste first and check the box after, and Thunderbird may try to interpret plain text as HTML and render it wrong.
  • Thunderbird sets signatures up per account, so repeat these steps for every address you send from.
  • If you reply to a message that's plain text, Thunderbird automatically converts your HTML signature to a plain-text equivalent — links and images won't carry over there, which is expected.