Extension Auditor
Sign Up
Firefox Add-ons
6Versions
0Code reviewed

Not reviewed

No code review on record

We have not reviewed this extension’s code, so we cannot vouch for it either way. Check the permissions below to decide whether it asks for more than it needs.

Want us to read this extension's code? Ask for a review and we'll queue it.

27 indicators in this extension

27 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

What our analysis found

Extension Signal Spam, used by 13,644 people, is not yet reviewed by Extension Auditor. Its permissions mean it can inject scripts into pages. It comes from a trusted publisher and was last updated in July 2026.

Extension Signal Spam

Extension Signal Spam Firefox extension security report

ID: extension-signal-spam

Extension Info & Metadata

Status
Active
Version
4.3.0
Size
2.98 MB
Rating
3.7/5
Reviews
336
Users
13,644
Type
Extension
Updated
Jul 9, 2026
Category
N/A
Price
Free
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
Firefox Add-ons
Report Issue
This publisherTrack record
6extensions
All still listed

Publisher Contextual Analysis

Trusted
Author
VERIFROM
Privacy
Privacy Policy
Country
FR
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
Yes
Mailbox exists
Yes
Address
20 rue des 3 Résistants CLERMONT-FERRAND 63100 FR
Website
Visit
Extensions
6
Active
3
Obsolete
0
Listed
6
Unlisted
0
Users
34,867

Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
webNavigation
Permission
High
This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact• 10% increase: Early script execution enables pre-emptive content manipulation• 25% increase: Unsafe code evaluation capabilities increase attack surface
Unsafe WebAssembly Execution
Risk Factor
High
This extension's CSP allows "wasm-unsafe-eval".
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
https://*.signal-spam.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://services.verifrom.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://cdn.verifrom.net/*
Host
Medium
Host permission — access limited to this URL pattern.
https://webmail.free.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://webmail-rc.free.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://imp.free.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://zimbra.free.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://mail.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://webmail.sfr.fr/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.orange.fr/appsuite/*
Host
Medium
Host permission — access limited to this URL pattern.
https://web-mail.laposte.net/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.mail.yahoo.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://mail.yahoo.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://apis.mail.yahoo.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.mail.aol.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://apis.mail.aol.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://webmail.mail.ovh.net/*
Host
Medium
Host permission — access limited to this URL pattern.
https://outlook.live.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://mailo.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.mailo.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Access to Sensitive Domains
Risk Factor
Medium
This extension requests access to sensitive domains: https://mail.google.com/*, https://*.mail.yahoo.com/*, https://mail.yahoo.com/*, https://apis.mail.yahoo.com/*, https://outlook.live.com/*
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.
alarms
Permission
Low
This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
contextMenus
Permission
Low
This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.
notifications
Permission
Low
This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data.

27 indicators in this extension

27 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe

About this extension

Alertez Signal Spam en un clic sur un spam ou phishing depuis votre mail Orange, SFR, Yahoo!, Gmail, Laposte.net, Outlook, Free, AOL. Protégez-vous contre le Phishing et soyez alerté des sites frauduleux dans votre webmail ou votre navigation web.

User reviews

Extension files

Browse and explore files within this extension package

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In
URLs
27

URLs

View the external URLs this extension communicates with to understand its network activity and data interactions.

No URLs found
No IP addresses found

27 indicators in this extension

27 indicators
0 versions analysed

Every finding is verified by a security analyst. Unlock the code evidence, indicators and version history.

Unlock this report — $4.99Start 7-day trial — all reports
One-time payment · Secure checkout by Stripe
Version
Size
Verdict
Findings
Permhash
2.7.8
Latest
0.60 MBNot scanned—
760565d4b0037249af37b84f238342c0deea32dd9aa241bdb4069e682880e588
2.7.11
0.60 MBNot scanned—
760565d4b0037249af37b84f238342c0deea32dd9aa241bdb4069e682880e588
2.7.13
0.60 MBNot scanned—
760565d4b0037249af37b84f238342c0deea32dd9aa241bdb4069e682880e588
2.7.14
0.60 MBNot scanned—
760565d4b0037249af37b84f238342c0deea32dd9aa241bdb4069e682880e588
4.2.3
2.83 MBNot scanned—
69741f415c7f87bab64db05246710ed59706eddbb9d3b07c6a450a87c5f7981c
4.3.0
2.98 MBNot scanned—
69741f415c7f87bab64db05246710ed59706eddbb9d3b07c6a450a87c5f7981c
Showing 1 to 6 of 10 rows
Rows per page:

Code Diff

Compare extension code between any two versions.

0 changed files detected

No comparable text files found between these versions.

Gain full insight into all external connections.

Upgrade for full visibility.

Sign In

Related extensions

More from VERIFROM