Chrome Web Store

61Versions

1Code reviewed

No malware found

In code review (v2.6.9)

Our reviewer read version 2.6.9 — the most recent version we have reviewed — and found no malicious behaviour. The version shown here has not been individually reviewed yet.

What our analysis found

cat-catch, used by 800,000 people, showed no malicious code in Extension Auditor's review. 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 7 extensions and was last updated in July 2026.

The extension is a legitimate media All requested permissions are directly required for its core functionality: webRequest, tabs, downloads, storage, etc., enable capturing and saving media files. Code review shows no hidden data exfiltration, tracking, or unauthorized network activity. Optional features like MQTT, send2local, and online ffmpeg are user‑controlled and documented. The ML model and risk‑engine flags are based solely on permission patterns that are typical for this type of tool. Publisher reputation is low‑risk with a valid email and open‑source code.

cat-catch

ID: jfedfbgedapdagkghmgibemcoggfppbb

Supported Languages

🇧🇷Brazilian Portuguese

🇨🇳Chinese (Simplified)

🇹🇼Chinese (Traditional)

🇺🇸English

🇯🇵Japanese

🇰🇷Korean

🇷🇺Russian

🇪🇸Spanish

🇹🇷Turkish

🇻🇳Vietnamese

Extension Info & Metadata

Status

Active

Version

2.7.2

Size

0.58 MB

Rating

4.7/5

Reviews

733

Users

800,000

Type

Extension

Updated

Jul 30, 2026

Publisher Contextual Analysis

Author: 笨猫猫View Profile
Privacy: Privacy Policy
Help: Help Center
MX records exist: Yes
Domain exists: Yes
Is disposable: No
Is role-based: No
Mailbox exists: Yes
Website: Visit

Extensions

Active

Obsolete

Listed

Unlisted

Users

2,290,874

Screenshots & videos

Install growth

User Growth

Showing data from May 05, 2022 to May 04, 2023

Versions

+14.29%(+100,000 users)

Compared to 3 months ago

27 versions released in this period

Rating Count

Total: 354 ratings

Average Rating

Current: 4.72 / 5.0+0.01

See plans

React Flow

Internal permhash`bb7e4e9b75…`
No malicious matches

3 other extensions carry this fingerprint, none of them known malicious.

Withheldnot flagged
Withheldnot flagged
Withheldnot flagged

Permhash (Mandiant)`5030642a1d…`
No malicious matches

3 other extensions carry this fingerprint, none of them known malicious.

Withheldnot flagged
Withheldnot flagged
Withheldnot flagged

Network indicators

34 URLs and 1 IP literals were extracted from this version.

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.
:///*	Host	Critical	Broad host access — the extension can read/modify content on every website.
<all_urls>	Host	Critical	Broad host access — the extension can read/modify content on every website.
downloads	Permission	High	This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns.
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:• 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.
alarms	Permission	Low	This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.
sidePanel	Permission	Low	This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.
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.

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About this extension

Web media sniffing tool

Read the publisher’s full description

cat-catch Chinese Name: 猫抓 Sniffing resources from a webpage... Open Source: https://github.com/xifangczy/cat-catch For bug submissions, please visit GitHub or find other submission methods in the documentation. Documentation: https://o2bmm.gitbook.io/cat-catch/ The extension is not responsible for the content downloaded by users, so please check the copyright and permissions before downloading.

User reviews

4.6 out of 5 · 10 most recent reviews

Text reviews

Positive

Negative

商店搜索“网页下载视频”，我从试用到尾，全是垃圾。不如猫抓1%好用。真心话，信我，兄弟！但是我不明白为什么猫抓不在搜索列表里，明明猫抓也是网页下载视频用的。我知道猫抓，还是多亏油管大神推荐。好软件真的是被埋没了。

song yang·27 Sept 2026

牛批，我愿称你为最强

Jz Cui·26 Sept 2026

越来越拉了，经常解密错误

MCabcat·26 Sept 2026

Extension files

Browse and explore files within this extension package

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URLs

IPv4

URLs

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

No URLs found

No IP addresses found

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Version	Size	Verdict	Findings	Permhash
2.7.2 Latest	0.58 MB	Not scanned	—	5030642a1d319002a3778228b396e166ee2d55770be7bac0c6afc0d7d78d13ee
2.7.1	0.57 MB	Not scanned	—	5030642a1d319002a3778228b396e166ee2d55770be7bac0c6afc0d7d78d13ee
2.7.0	0.57 MB	Not scanned	—	f6a80d9009f6b61f117224b71256e31b1339bc7889eef3cfa953646b3ce80135
2.6.9	0.56 MB	No malware found	0	7ad0b56eb5004f802d2f1c519bfa4bcdfb74bb12c785febce115d49bd520a0b5
2.6.8	0.56 MB	Not scanned	—	7ad0b56eb5004f802d2f1c519bfa4bcdfb74bb12c785febce115d49bd520a0b5
2.6.7	0.55 MB	Not scanned	—	7ad0b56eb5004f802d2f1c519bfa4bcdfb74bb12c785febce115d49bd520a0b5
2.6.5	0.54 MB	Not scanned	—	7ad0b56eb5004f802d2f1c519bfa4bcdfb74bb12c785febce115d49bd520a0b5
2.6.4	0.53 MB	Not scanned	—	7ad0b56eb5004f802d2f1c519bfa4bcdfb74bb12c785febce115d49bd520a0b5
2.5.8	0.37 MB	Not scanned	—	f6a80d9009f6b61f117224b71256e31b1339bc7889eef3cfa953646b3ce80135
2.5.7	0.37 MB	Not scanned	—	f6a80d9009f6b61f117224b71256e31b1339bc7889eef3cfa953646b3ce80135

Showing 1 to 10 of 70 rows

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Code Diff

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0 changed files detected

No comparable text files found between these versions.

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No malware found

What our analysis found