Stable signalNo paid features detectedHigh-risk permissions

Certisign WebSigner

Extensão WebSigner Certisign

Users1MCurrent public install base

Rating2.2Store average score

Reviews158Public review volume

Manifest versionV3Extension platform version

7-day growth0Net users gained this week

7-day growth rate0%Relative weekly velocity

Preview

Certisign WebSigner Media preview

1 assets

Trend

User growth trend

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User Growth Over Time

Rating trend

7-day rating trend

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7-day rating change

Start

2.24

Latest

2.24

7-day rating change

0.00

2026年7月13日2026年7月19日

Growth overview

Daily, weekly, and monthly growth

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1-day growthNo data

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7-day growthFlat

00%

30-day growthNo data

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Technical snapshot

Version, languages, and crawl freshness

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Version2.17.2

ManifestV3

Size424KiB

Languages3English / español / italiano

Published--

Store updated--

Last crawled--

Overview

Product summary

Review the store description, core capabilities, and common use cases.

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

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score2.2Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average1.6Average computed only from synced review bodies below

Reviews with text105Synced review bodies

Total ratings / reviews158Chrome Web Store public rating/review count

Store average score: 2.2. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★

4★

3★

2★

1★

Erick Nunes2024年4月21日

Não funciona!

Fatima Santos2024年4月15日

Praticidade e viabilidade para todos.

lelis popu2024年4月12日

Não funciona. Lastimável não poder acessar meu certificado digital e minha assinatura eletrônica!.

Renato Gomes2024年3月28日

O plugin é só um primeiro passo, depois é necessário instalar um acesso no próprio Windows. Sistema lento e instável, além de estar agora rodando na máquina de maneira contínua. Tem sistema de assinatura digital mais seguro e muito mais simples. EVITE se puder.

Joaquina Maria C Bueno2024年3月26日

Não funciona; simples assim

Meyre Ferreira2024年3月25日

Ainda sem funcionar. O que acontece com uma empresa dessa que não resolve os problemas de seus clientes? Ainda não entenderam que cliente recorrente é mais valioso que conquistar um novo?

Glaykon Stabile2024年3月13日

Não funciona

Marcelo Donisete Dias2024年3月12日

M M M M M M Porcaria necessaria

Antônio Augusto Pereira Lima2024年2月19日

Pior impossível

Jorge Dornelles de Oliveira2024年2月15日

Ja comprei duas vezes e desisti de usar. E impossivel . Na venda e otimo. Mas depois não funciona , não instala.

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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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Permissions

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