Enhance Your Email with Custom HTML Editing

HTMaiL is a web development extension for Firefox that allows users to insert HTML code into email messages, enhancing their visual appeal and professionalism. This subscription-based tool integrates effortlessly into the webmail compose interface, providing an intuitive HTML editor where users can create, paste, or import their custom HTML code. The extension also features a preview function, allowing users to see how their email will look before sending it, ensuring a polished final product.

One of the key features of HTMaiL is its ability to convert internal and external CSS styles into inline styles, which prevents style leakage during the email sending process. Additionally, it offers an adaptive HTML editor theme that aligns with the operating system's theme. While this extension is powerful for individual email customization, it is important to note that it does not replace mass mailer systems and has limitations regarding CSS Media Query and external fonts.

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App specs

  • License

    Subscription

  • Version

    7.6.0

  • Latest update

  • Platform

    firefox

  • Size

    411.53 KB

  • Developer

Program available in other languages



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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is HTMaiL: Insert HTML into email message safe?

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Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

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  • Malware free
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Scan Info

Last scan
Thursday, October 9, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
7.6.0.xpi
SHA256
6f507311d6038a8b3ce90478910c4848c147c1762cc7972148432d8f663f2d43
SHA1
a802c58ff1bf0307131ae2d6beb1855e75269341

Softonic security commitment

HTMaiL: Insert HTML into email message has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware.