Who is GreenSignal for?

GreenSignal is a consumer product built for firefox users concerned about phishing and website authenticity.

Does GreenSignal have a free plan?

Yes — GreenSignal is free to use.

What platforms does GreenSignal run on?

GreenSignal runs on the web and embeddable surfaces.

Is GreenSignal still maintained?

Unverified. GreenSignal 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.

Who makes GreenSignal?

GreenSignal is developed by Kysune.

When did GreenSignal launch?

GreenSignal first shipped in 2026.

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GreenSignal

Name: GreenSignal
Author: Kysune

mozilla.orgBrowser DevTools & extensions

GreenSignal is a Firefox extension that displays a verification signal when users visit trusted domains. It provides an extra check before users enter passwords, make payments, download software, or connect cryptocurrency wallets.

FreeWebEmbeddable

Visit mozilla.org

Overview

7 features

GreenSignal sits in PulseGate's Browser DevTools & extensions category. It focuses on avoiding phishing, fake websites, and malicious downloads before entering sensitive information or making payments. It is built as a consumer product for firefox users concerned about phishing and website authenticity. GreenSignal is free to use. GreenSignal is available on the web and embeddable surfaces.

Behind GreenSignal is Kysune, and it first shipped in 2026. Among its 7 catalogued features are verified domain signals, phishing protection, and fake website detection. The interface is available in 32 languages, including Czech, German, and Greek. GreenSignal is currently in beta.

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

Verified domain signals
Phishing protection
Fake website detection
Domain checking
Download safety checks
Payment page warnings
Crypto wallet protection

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

Indexed18 Sep · 04:28 UTC
GreenSignal verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about GreenSignal

What is GreenSignal?: GreenSignal focuses on avoiding phishing, fake websites, and malicious downloads before entering sensitive information or making payments. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is GreenSignal for?: GreenSignal is a consumer product built for firefox users concerned about phishing and website authenticity.
Does GreenSignal have a free plan?: Yes — GreenSignal is free to use.
What platforms does GreenSignal run on?: GreenSignal runs on the web and embeddable surfaces.
Is GreenSignal still maintained?: Unverified. GreenSignal 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.
Who makes GreenSignal?: GreenSignal is developed by Kysune.
When did GreenSignal launch?: GreenSignal first shipped in 2026.
What languages does GreenSignal support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
First seen: 18 Sep 2026
Status: 🟡 Beta
Built for: Firefox users concerned about phishing and website authenticity
Model: B2C
Solves: Avoiding phishing, fake websites, and malicious downloads before entering sensitive information or making payments.

Registered as

Firefox Add-ons: greensignal

Developer

Kysune

Index record

Indexed: 18 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 18 Sep 2026

Identity audit (13)

Slug: greensignal-mozilla-org
Lifecycle state recorded: 18 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 18 Sep 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: 18 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/greensignal

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