Cooling signalNo paid features detectedHigh-risk permissions

Fast Signature

Signature electronique

Users70KCurrent public install base

Rating4.0Store average score

Reviews1Public review volume

Manifest versionV3Extension platform version

7-day growth-10KNet users gained this week

7-day growth rate-12.5%Relative weekly velocity

Preview

Fast Signature Media preview

2 assets

Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start

4.00

Latest

4.00

7-day rating change

0.00

2026年7月19日2026年7月24日

Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthFlat

00%

7-day growthDeclining

-10K-12.5%

30-day growthDeclining

-10K-12.5%

Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version2.5.2

ManifestV3

Size11.48KiB

Languages1français

Published--

Store updated--

Last crawled--

Overview

Product summary

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

Extension de signature qui permet la signature de document électronique au format PAdES ou XAdES développée par DOCAPOSTE-FAST

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score4.0Chrome Web Store aggregate rating, including ratings without synced review text

Synced text average--Average computed only from synced review bodies below

Reviews with text0Synced review bodies

Total ratings / reviews1Chrome Web Store public rating/review count

Store average score: 4.0. 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★

No synced review text is available yet.

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AI product read

Native messaging bridge that connects the FAST/Docaposte parapheur web application to a locally installed electronic signature application for signing documents in PAdES, XAdES, and PKCS7 formats

Enables electronic document signing (PAdES/XAdES/PKCS7) directly from the FAST parapheur web platform by bridging the browser-based document workflow with a local native signing application that has access to the user's signing certificates

User opens a document on a FAST parapheur web domain → the web app dispatches a custom DOM event (e.g. FAST_signPES) → content.js intercepts the event → background.js relays the message to the native messaging host (fast.sign.web.extension) → the native app performs the cryptographic signing using local certificates → the response flows back through the native port → background.js forwards to content.js → content.js dispatches a result event back to the parapheur web page.

Target users: Enterprise users of the FAST/Docaposte parapheur electronic document signing platform / French government and corporate employees using eIDAS-compliant electronic signatures

Cannot confirm whether the native host application (fast.sign.web.extension) has its own paid/licensing model
The exact authentication mechanism on the destination parapheur domains is not visible from the extension source alone

Monetization

No paid features detected

The extension contains no payment logic, subscription handling, upgrade prompts, or billing APIs. It is a pure native messaging bridge between the FAST parapheur web app and a locally installed signing application. While the FAST/Docaposte enterprise service itself likely has paid business plans, the extension does not gate or sell any features.

Confidence: 90
Payment platform: --
Source: AI / High
Login required: Yes
Reason: The extension only activates on specific FAST/Docaposte parapheur domains (parapheur.dfast.fr, efast.fr, etc.), which are enterprise electronic document signing platforms requiring user authentication. The extension itself has no login UI — it acts as a native messaging bridge that only functions when the user is already authenticated on the destination FAST parapheur web application.

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：tabs

Publisher

store.cdcfast

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access