Heading Tag Markup

Name: Heading Tag Markup
Rating: 4.6667 (3 reviews)
Author: Thomas Czernik

By: Thomas Czernik

This extension visual highlights the h-Tag on every page.

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Features & Capabilities

The Heading Tag Markup Chrome extension allows users to visually highlight all heading tags (H1 to H6) on any webpage. Each heading level is color-coded for easy differentiation, helping developers, SEO professionals, and content creators quickly identify the structure of a page. With a simple click on the extension icon, users can toggle the highlighting feature on or off instantly.

This tool streamlines webpage analysis by displaying which heading tag is present and visually marking them in distinct colors, improving accessibility and making content hierarchy clearer. Ideal for SEO audits, accessibility checks, and web development, Heading Tag Markup is a must-have for anyone needing to evaluate or optimize webpage heading structures efficiently.

User Growth & Download Statistics

Add-on Developer Tools Accessibility

By:

Daily users:

Rating:

Version:

1.4resigned1 Last updated: 2024-04-26

Version code:

5733328

Creation date:

2019-02-20

Risk:

Permissions:

https://*/*
http://*/*
tabs
storage

Content scripts matches:

Size:

13.60KB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-21

Compare stats and ranking:

Ranking

# 6,916 ▲ 38

Other rankings

#23 in deactivate keyword 9 #38 in loading keyword 25 #39 in trading keyword 32 ▲ 3#127 in marker keyword 34 ▼ 1#197 in lead keyword 18 ▲ 3

Other platforms

Heading Tag Markup (v1.2)

8,000 4.63

(8)

For Developers

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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:

Thomas Czernik

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/heading-tag-markup/

User Reviews

Concept seems good, but I don't see the red "H#" indicator, just the coloured background, and I don't see any explanation in the extensions notes that might explain why, or how to enable it. Also, it says "differentiation of h1 - h6 tags by different colors", but there is no explanation of what colour is for which tag. And what exactly does "day" mean in "h6 Highlight day" and "Display which day is currently being output"?

by Ed*****, 2026-01-22

by 退出*****, 2025-03-27

by 天灭*****, 2025-02-21

View all user reviews ›

Is Heading Tag Markup 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.

Heading Tag Markup requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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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.

Heading Tag Markup has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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