---
url: "/emailify/signatures/mozilla-thunderbird-windows.md"
description: "Emailify includes an option for exporting HTML signatures, which you can then copy/paste and use in Mozilla Thunderbird (Windows)."
---

# Export and install custom HTML email signatures for Mozilla Thunderbird (Windows)

> Emailify includes an option for exporting HTML signatures, which you can then copy/paste and use in Mozilla Thunderbird (Windows).

> **Warning:** **Email signatures have a size limit of 10,000 characters in the HTML**. The plugin will warn you after exporting your email signature if its over the size limit. To avoid this you can use some of the **Signature** starter components under the **Footer** tab in the Emailify plugin.

> **Note:** Unfortunately, any **responsive mobile overrides _won't_ be rendered for any "HTML Email Signature" exports**, as any CSS style tags and @media queries are stripped out by email clients (therefore, it's also not included in the code export), so it's worth trying to strike a balance in the original design that looks nice across both desktop and mobile widths.

### Video Tutorial: Design and export HTML Email Signatures from Figma

This video tutorial is a complete step-by-step guide showing you how to design
  and export production-ready, responsive HTML email from Figma using the
  Emailify plugin.
  [Embedded media](https://www.youtube.com/embed/dmjDTWiphWk)

## Export your HTML signature from Emailify

[Video](/assets/videos/emailify/export/export-email-signature.mp4)

In the Emailify plugin, click on the **Export HTML** button to open the export panel, select the **HTML Email Signature** option from the dropdown list, then click the **Export to HTML Signature** button to start exporting the emails you've selected from Figma to HTML.

After Emailify has finished processing your email(s), you'll be shown a confirmation message; you can download your `.zip` file to your computer by clicking the **Download your .zip file** button, then you can unzip the `.zip` to see your exported files.

## Copy your HTML email signature to the clipboard

[Video](/assets/videos/emailify/export/copy-html-signature.mp4)

After you've exported your HTML email signature from Emailify and unzipped the `.zip` file, you can open the `preview-and-install.html` file in your [Google Chrome](https://www.google.com/chrome/) web browser (as other browsers like Safari may have issues) and then click the **Copy HTML Signature** button on the preview page, which will automatically copy the contents of your HTML signature to your clipboard.

> **Tip:** Some email clients may require the "raw" HTML code, so if that's the case, you can click the **Copy HTML Signature (Raw Code)** button in the `preview-and-install.html` file to copy the selection as raw HTML to your clipboard that way instead.

> **Note:** Once you've copied the HTML to your clipboard, you can follow the instructions below (taken from the excellent guides provided by [SignatureHound](https://signaturehound.com/)) to install the signature in your email client.

## How to install your HTML email signature in Mozilla Thunderbird (Windows)

![Mozilla Thunderbird (Windows) Icon](/assets/images/emailify/signatures/thunderbird-windows.png)

1. Download your signature as a HTML file.

> **Tip:** After exporting your signature from Emailify, you can find your HTML email signature file inside the exported `.zip` file, inside your email signature's folder as the **index.html** file (do _not_ use the the 'preview.html' file)

2. With the Mozilla Thunderbird application open, click the **Menu Icon** in the top right, then under **Options** select **Account Settings**.

3. From the **Account Settings** pop-up, click the **Attach the signature from a file instead (text, HTML, or image) checkbox** and choose the HTML signature you exported from Emailify (`index.html`) for the file input below.

![Screenshot of Spark settings modal with no signature](/assets/images/emailify/signatures/thunderbird-windows-1.jpg)

4. Click **OK** in the bottom right of the popup, compose a new email and enjoy your new signature!

> **Note:** Thunderbird will show red borders around the elements in your email signature. Don't be alarmed – these won't be visible to your recipients when you send them emails.

![Screenshot of Installed Signature on Spark](/assets/images/emailify/signatures/thunderbird-windows-2.jpg)