Who should use H1 Counter?

H1 Counter is a consumer product built for web developers and SEO professionals.

Does H1 Counter have a free plan?

Yes — H1 Counter is free to use.

What platforms does H1 Counter run on?

H1 Counter runs on the web and embeddable surfaces.

Is H1 Counter still active?

Unverified. H1 Counter has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to H1 Counter?

Similar projects tracked by PulseGate include Tabs Counter, Tab Counter Icon, and Tab Counter.

Who develops H1 Counter?

H1 Counter is developed by sky_weaver.

How long has H1 Counter been around?

H1 Counter first shipped in 2025.

Back to the index

H1 Counter

Name: H1 Counter
Author: sky_weaver

mozilla.orgBrowser DevTools & extensions

H1 Counter is a Firefox extension that counts real H1 elements on the current web page and displays the total in the toolbar. It lists headings in a popup and shows full HTML for headings containing non-text content, with processing performed locally.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

H1 Counter sits in PulseGate's Browser DevTools & extensions category. It focuses on checking and reviewing H1 headings on web pages without manually inspecting HTML. It is built as a consumer product for web developers and SEO professionals. H1 Counter is free to use. It ships for the web and embeddable surfaces.

It is developed by sky_weaver, and it first shipped in 2025. Key capabilities include H1 count display, heading list, and HTML inspection. The interface is available in 32 languages, including Czech, German, and Greek.

Summary written by a language model from the project’s public pages.

H1 count display
Heading list
HTML inspection
Toolbar icon
Local processing

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed19 Sep · 11:56 UTC
H1 Counter verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about H1 Counter

What is H1 Counter?: H1 Counter focuses on checking and reviewing H1 headings on web pages without manually inspecting HTML. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use H1 Counter?: H1 Counter is a consumer product built for web developers and SEO professionals.
Does H1 Counter have a free plan?: Yes — H1 Counter is free to use.
What platforms does H1 Counter run on?: H1 Counter runs on the web and embeddable surfaces.
Is H1 Counter still active?: Unverified. H1 Counter has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to H1 Counter?: Similar projects tracked by PulseGate include Tabs Counter, Tab Counter Icon, and Tab Counter.Tabs Counter Tab Counter Icon Tab Counter
Who develops H1 Counter?: H1 Counter is developed by sky_weaver.
How long has H1 Counter been around?: H1 Counter first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: web developers and SEO professionals
Model: B2C
Solves: Checking and reviewing H1 headings on web pages without manually inspecting HTML.

Registered as

Firefox Add-ons: h1-counter

Developer

sky_weaver

Index record

Indexed: 19 Sep 2026
Lifecycle: Alive
Last seen: 19 Sep 2026

Identity audit (13)

Slug: h1-counter-mozilla-org
Lifecycle state recorded: 19 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 19 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 19 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/h1-counter

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do