HTMaiL: Insert HTML into email message Firefox

HTMaiL: Insert HTML into email message

By: dziul
This extension will allow you to easily insert HTML code into the body of the message from your favorite webmail service: Gmail, Outlook, and Yahoo Mail.

Features & Capabilities

HTMaiL is a Chrome extension that empowers users to effortlessly insert custom HTML code into their email messages across popular webmail services like Gmail, Outlook, and Yahoo Mail. It enhances email creation beyond basic formatting by providing an easy-to-use HTML editor with live preview capabilities.

Key features include seamless integration into webmail compose interfaces, the ability to insert HTML templates at the cursor position or selected text, and automatic conversion of CSS styles into inline styles to ensure proper formatting without style leakage. The adaptive HTML editor theme matches your OS theme for a consistent user experience. While it doesn't replace mass mailer systems and has limitations such as handling media queries or external fonts, HTMaiL uniquely transforms email composition to help create more professional and visually engaging messages.

User Growth & Download Statistics

By:
dziul
Daily users:
1,007 -8
Rating:
5.00
(6)
1 new ratings
Version:
7.7.0 Last updated: 2026-03-11
Version code:
6177536
Creation date:
2020-05-28
Risk:
Very high risk impact Moderate risk likelihood
Permissions:
Content scripts matches:
  • mail.google.com
  • inbox.google.com
  • mail.yahoo.com
  • *.mail.yahoo.com
  • outlook.live.com
  • outlook.office.com
  • outlook.cloud.microsoft
  • outlook.office365.com
Size:
492.37KB
Email:
da*****@gmail.com
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-05
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
dziul
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/htmail/
Email:
da*****@gmail.com

User Reviews

by *****, 2026-06-29

by 3m*****, 2026-03-30

by Fi*****, 2025-11-05
View all user reviews ›

Is HTMaiL: Insert HTML into email message Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

HTMaiL: Insert HTML into email message requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
  • Critical ******* ****** ** *** ********* ******** *********** ********** ********* *********** **************** *************
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ******* ***** *********** ***** ****** ********* *** ***** ********* **** **** ************** *** ********
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

HTMaiL: Insert HTML into email message is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
Extension Guard
Extension Guard

Discover every extension in use, analyze risks, and enforce blocking policies with Extension Guard

Secure Your Browser
Upgrade to see full risk analysis details

Best HTMaiL: Insert HTML into email message Alternatives

Here are some Firefox add-ons that are similar to HTMaiL: Insert HTML into email message: