What is Dateline Mark?

Dateline Mark focuses on finding dates and time-related information quickly on web pages. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Dateline Mark?

Dateline Mark is a consumer product built for firefox users who need to identify dates and times on web pages.

Is Dateline Mark free?

Yes — Dateline Mark is free to use.

What platforms does Dateline Mark run on?

Dateline Mark runs on the web and embeddable surfaces.

Is Dateline Mark still active?

Unverified. Dateline Mark 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 projects are similar to Dateline Mark?

Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.

Who makes Dateline Mark?

Dateline Mark is developed by Willie M. Estep.

When did Dateline Mark launch?

Dateline Mark first shipped in 2026.

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Dateline Mark

Name: Dateline Mark
Author: Willie M. Estep

mozilla.orgBrowser DevTools & extensions

Dateline Mark is a Firefox browser extension that highlights time elements and date-looking regions on the current web page. It is intended for users who need to locate temporal information more easily while browsing.

FreeWebEmbeddable

Visit mozilla.org

Overview

4 features

Dateline Mark sits in PulseGate's Browser DevTools & extensions category. It focuses on finding dates and time-related information quickly on web pages. Dateline Mark is a consumer product aimed at firefox users who need to identify dates and times on web pages. Dateline Mark is free to use. Dateline Mark is available on the web and embeddable surfaces.

Behind Dateline Mark is Willie M. Estep, and it first shipped in 2026. Key capabilities include date highlighting, time highlighting, and page scanning. The interface is available in 32 languages, including Czech, German, and Greek.

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

Date highlighting
Time highlighting
Page scanning
No data collection

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

Indexed9 Sept · 01:31 UTC
Dateline Mark verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Dateline Mark

What is Dateline Mark?: Dateline Mark focuses on finding dates and time-related information quickly on web pages. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Dateline Mark?: Dateline Mark is a consumer product built for firefox users who need to identify dates and times on web pages.
Is Dateline Mark free?: Yes — Dateline Mark is free to use.
What platforms does Dateline Mark run on?: Dateline Mark runs on the web and embeddable surfaces.
Is Dateline Mark still active?: Unverified. Dateline Mark 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 projects are similar to Dateline Mark?: Similar projects tracked by PulseGate include Hashrate Lens, SaveAI, and Codex File Drop.Hashrate Lens SaveAI Codex File Drop
Who makes Dateline Mark?: Dateline Mark is developed by Willie M. Estep.
When did Dateline Mark launch?: Dateline Mark first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 9 Sept 2026
Built for: Firefox users who need to identify dates and times on web pages
Model: B2C
Solves: Finding dates and time-related information quickly on web pages.

Registered as

Firefox Add-ons: dateline-mark

Developer

Willie M. Estep

Index record

Indexed: 9 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 9 Sept 2026

Identity audit (13)

Slug: dateline-mark-mozilla-org
Lifecycle state recorded: 9 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 9 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
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: 9 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/dateline-mark

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Also in Browser DevTools & extensions

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