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What our analysis found

(ALT)Stream Recorder - HLS & m3u8 Video Downloader, used by 28,428 people, is not yet reviewed by Extension Auditor. Its permissions mean it can read and change data on all websites, can inject scripts into pages and can observe network requests. It comes from a publisher with 2 extensions and was last updated in September 2025.

(ALT)Stream Recorder - HLS & m3u8 Video Downloader

(ALT)Stream Recorder - HLS & m3u8 Video Downloader Edge extension security report

ID: lmnlleihgiilhajakklebcmgacmmbngj

Supported Languages

🇯🇵Japanese
🇺🇸US English

Extension Info & Metadata

Status
Active
Version
2.2.9
Size
0.18 MB
Rating
4.1/5
Reviews
21
Users
28,428
Type
Extension
Updated
Sep 2, 2025
Category
Accessibility
Price
Paid
Featured
Yes
Visibility
Listed
Mature
No
By Google
No
Trusted
No
Download CRX
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This publisherTrack record
2extensions
All still listed

Publisher Contextual Analysis

Author
AltExtension
Privacy
Privacy Policy
Website
Visit
Extensions
2
Active
2
Obsolete
0
Listed
2
Unlisted
0
Users
29,294

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Screenshots & videos

Screenshot 1

Install growth

Item
Type
Severity
Description
webRequest
Permission
Critical
This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.
declarativeNetRequest
Permission
Critical
This permission allows the extension to define rules to block, redirect, or modify network requests. Rated Critical because it can control all network traffic, potentially blocking security updates or redirecting to malicious sites.
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.
<all_urls>
Host
Critical
Broad host access — the extension can read/modify content on every website.
Dangerous Permission Combination: scripting,<all_urls>,webRequest
Risk Factor
Critical
Enables sophisticated data theft through script injection and traffic monitoring
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.
offscreen
Permission
High
This permission creates hidden browser documents with full DOM access. Rated High because it can run background operations invisibly, potentially executing malicious code without user awareness.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation
Broad Host Permissions
Risk Factor
High
This extension has broad host permissions allowing it to access many or all websites.
Broad Content Script Access
Risk Factor
High
This extension can inject scripts into any website.
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.
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.
Early Content Script Execution
Risk Factor
Medium
This extension runs content scripts at document_start.

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About this extension

You can download and save live streaming video in HLS / m3u8 format.

Read the publisher’s full description

The most popular downloader for streaming videos. With this extension, you can easily save live and archived videos that are delivered in a typical HLS(HTTP Live Streaming) format, such as ts/m3u8. Even more, you can record videos directly using the unique video capture function. Downloaded audio and video data is converted to mp4 as it is with the same quality without re-encoding. This conversion is done inside the extension, without the use of an external server. Please be aware that we accept no liability for your recording of any media. We recommend ensuring the copyright and permissions of the media before recording. Be sure to use the latest version of your browser; we cannot promise availability on the Canary version. You can check the privacy policy and terms of use on the following page. https://www.altextension.com/stream/terms.html

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Extension files

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URLs
4

URLs

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No URLs found
No IP addresses found

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Version
Size
Verdict
Findings
Permhash
2.2.1
Latest
0.18 MBNot scanned—
8747a201bde256dd728127389aad6e12ecd7aa1cc3010d8984620803df694a35
2.2.2
0.18 MBNot scanned—
8747a201bde256dd728127389aad6e12ecd7aa1cc3010d8984620803df694a35
2.2.9
0.18 MBNot scanned—
8747a201bde256dd728127389aad6e12ecd7aa1cc3010d8984620803df694a35
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