Certisign WebSigner

Extensão WebSigner Certisign

Users1M

Rating2.2

Reviews156

Manifest versionV3

7-day growth0

7-day growth rate0%

Preview

Certisign WebSigner Media preview

1 assets

Trend

30-day user trend

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User Growth Over Time

Rating trend

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30-day rating change

Start

2.23

Latest

2.23

30-day rating change

0.00

2026年5月28日2026年6月3日

Growth overview

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1-day growthFlat

00%

7-day growthFlat

00%

30-day growthFlat

00%

Technical snapshot

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Version2.17.2

ManifestV3

Size424KiB

Languages3English / español / italiano

Published--

Store updated--

Last crawled--

Overview

Product summary

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This extension is used to sign documents digitally inside the Certisign platform (www.portaldeassinaturas.com.br). You will need to have a digital certificate in order to sign your documents, if you do not have one, please visit our website www.certisign.com.br and check which certificate fit your needs better.

Reviews

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The Chrome Web Store shows 156 reviews, but only 0 review bodies have synced into ExtScope so far. Showing the synced reviews available right now.

5★

4★

3★

2★

1★

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AI product read

Browser bridge extension enabling digital document signing via native cryptographic operations for the Certisign platform

Enables digital signatures in web browsers without deprecated Java applets by bridging web applications to native cryptographic APIs and hardware security devices (smartcards, tokens)

User installs extension + native messaging host (br.com.certisign.websigner). On the Certisign platform or any integrated web app, the web page sends signing requests via custom DOM events. The content script bridges these to the extension's service worker, which communicates with the native host to access local certificate stores and perform cryptographic operations (signing, certificate reading). Results are returned to the web page.

Target users: Brazilian users and organizations using Certisign digital certificates / Users of portaldeassinaturas.com.br document signing platform / Users with hardware cryptographic tokens (SafeNet, smartcards)

No login/payment flows found in extension source, but the destination service (portaldeassinaturas.com.br) behavior was not directly auditable
The main.js file is a large bundled Angular app (~970KB) and was only partially examined via keyword search
The 'license' concept could be confusing — it refers to a developer SDK license (B2B) rather than an end-user subscription, which required careful source analysis to distinguish

Monetization

No paid features detected

The extension itself is free to install and use with no in-extension payment gates, upgrade prompts, or subscription flows. The 'license' concept in the code (lib.d.ts lines 7-9, event-page.js line 39/631-652) refers to a B2B developer-facing WebPKI SDK license key that web application developers purchase from Lacuna Software to integrate the signing API into their websites — not a user-facing subscription. The 'subscribe' keyword in main.js is Angular RxJS observable.subscribe() (programming pattern). The 'pro' matches are from words like 'problema', 'produced', 'provide' in Portuguese/Spanish locale strings. Digital certificates from Certisign are an external product sold separately, not a feature of the extension.

Confidence: 80
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension itself does not implement any login UI, authentication flow, or user account system. It is a passive bridge/SDK that responds to requests from web pages. The content script listens for custom DOM events from web pages and forwards them to the native messaging host. No login-related code (auth endpoints, credential storage, OAuth flows) exists in the extension source. The destination service (portaldeassinaturas.com.br) may require account access, but the extension itself gates no functionality behind login.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：nativeMessaging
扩展能力较强：storage、downloads、tabs

Publisher

Certisign

Certisign Certificadora Digital

Email: [email protected]
Phone: --
Address: R. Bela Cintra, 904 São Paulo, SP 01415-002 BR

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