How to add an email signature in Thunderbird
Thunderbird does not accept pasted formatting in its signature box, but it accepts HTML source. Use “Copy HTML” in Sendoff and paste the code directly.
Make a signature for ThunderbirdFree. No sign-up to try.
ThunderbirdWindows, macOS, LinuxAbout a minuteUses “Copy HTML”
- 1
Copy the HTML source
Press “Copy HTML” in Sendoff.
- 2
Open account settings
Open the menu, Account Settings, and select your address.
- 3
Enable HTML
Tick “Use HTML” next to “Signature text”.
- 4
Paste and close
Paste the HTML into the box. Changes save automatically.
After you paste it into Thunderbird
Example with fictional details
Good to know
- Tick “Use HTML” next to the signature text box, or the code will appear as plain text.
- Thunderbird can also load a signature from an .html file: download it from Sendoff and choose “Attach the signature from a file”.
Copy, paste, done
Build your signature in the free editor, then follow the steps above.