Chrome Web Store
12Versions
0Code reviewed

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13 indicators in this extension

13 indicators
0 versions analysed

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What our analysis found

Substack Messaging Extension is not yet reviewed by Extension Auditor. Its permissions mean it can inject scripts into pages. It comes from a publisher with 5 extensions and was last updated in July 2026.

Substack Messaging Extension

Substack Messaging Extension Chrome extension security report

ID: ljlojmjecdpmomhinccabcnboiidnbpd

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
1.3.1
Size
0.03 MB
Rating
3.7/5
Reviews
3
Users
136
Type
Extension
Updated
Jul 13, 2026
Category
Developer tools
Price
Paid
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
5extensions
2 no longer listed

Publisher Contextual Analysis

Author
Momentum Making Tools
Country
DE
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Address
Edelhofdamm Berlin 13465 DE
Website
Visit
Extensions
5
Active
3
Obsolete
2
Listed
5
Unlisted
0
Users
595

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.
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
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
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://*.substack.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://substack.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://extensionpay.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://*.substack.com/*, https://substack.com/*
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

13 indicators in this extension

13 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

The Substack Auto Messenger Chrome extension is a tool designed to simplify communication with your Substack subscribers. It allows…

Read the publisher’s full description

The Substack Auto Messenger Chrome extension is a tool designed to simplify communication with your Substack subscribers. It allows you to send personalized or generic messages directly to your subscribers efficiently. Here's how it works: 1) Install the Extension - Download and install the Substack Auto Messenger Chrome extension from the Chrome Web Store. 2) Navigate to the Correct Page - Log in to your Substack profile. - Go to your Subscribers page at this exact link: https://yournewsletter.substack.com/publish/subscribers (Make sure there’s nothing added to the link after “subscribers.”) 3) Open the Extension Click on the Substack Auto Messenger extension icon in your Chrome toolbar. Buy your monthly subscription in order to use the extension. To do that, click on the "Buy Now" button, which will open a new window. 4) Compose Your Message - Use the provided text box to write your message. - Limit the recipients to up to 50 subscribers at a time - Double-check your message before sending. 5) Keep the Subscribers page open while the extension runs. The extension will indicate whether messages are successfully sent. 6) Best Practices Message Size: Keep messages concise and meaningful. Batch Sending: Avoid sending too many messages at once to maintain smooth operation (you can send max. 50 messages at once). Monitor Progress: Watch the extension's status updates to ensure all messages are sent correctly. With this tool, you can efficiently manage your communication, welcome new subscribers, and strengthen engagement with your Substack audience.

User reviews

Extension files

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URLs
13

URLs

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No URLs found
No IP addresses found

13 indicators in this extension

13 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
1.3.1
Latest
0.03 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.3.0
0.03 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.2.0
0.03 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.1.7
0.03 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.1.6
0.03 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.1.5
0.03 MBNot scanned—
f94827835f7aa293d0d948a719df535a847e709cd7184bb524691c320b6a310b
1.1.4
0.02 MBNot scanned—
f94827835f7aa293d0d948a719df535a847e709cd7184bb524691c320b6a310b
1.1.3
0.02 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.1.2
0.02 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
1.1.1
0.02 MBNot scanned—
99adbdbbddcfb9fd53b16b52dd8c12027fd72e73a38b6574fce2553b33dee235
Showing 1 to 10 of 20 rows
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Code Diff

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0 changed files detected

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