ClickSig
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Thunderbird · Desktop

How to add a signature
to Mozilla Thunderbird?

01Step 1 of 2

Open Account Settings

Click the menu button (☰) and choose Account Settings. Do not open the general Settings page — the signature is not there. If Account Settings is missing from that menu, right-click the account in the folder list and choose Settings. Then click the account name itself, not Server Settings or another subpage.

iLook for the highlighted control in the preview.

☰ Menu
Account Settings
[email protected]
Local Folders
☰ → Settings → Account Settings
02Step 2 of 2

Paste your signature

In the Signature box, check Use HTML — that is Thunderbird’s own checkbox, and the pasted signature needs it. Click in the box and paste once (Ctrl+V / ⌘V). To include it on replies, open Composition & Addressing under that same account. Close Account Settings when you are done.

iKeep the original formatting when pasting.

Alex Rivera
Product Designer
Use HTML → Paste

You’re all set

Your signature is ready to make an impression.

Open a new message in Mozilla Thunderbird to check that everything looks just right.

Create your email signature for free

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