# 猫抓(cat-catch)

> Web media sniffing tool

Canonical page: [https://chrome-stats.com/d/cat-catch](https://chrome-stats.com/d/cat-catch)

## Overview

- **ID:** `cat-catch`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** 笨猫猫
- **Category:** download-management,search-tools,photos-music-videos
- **Daily users:** 15,840
- **Weekly downloads:** 454
- **Rating:** 4.63 / 5 (67 ratings)
- **Version:** 2.7.2
- **Last updated:** 2026-08-03
- **First published:** 2022-05-28
- **Size:** 614 KB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/cat-catch/)
- **Website:** [https://bmmmd.com/](https://bmmmd.com/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/cat-catch/privacy/](https://addons.mozilla.org/firefox/addon/cat-catch/privacy/)

## Description

猫抓 (cat-catch) is a powerful Chrome extension designed to sniff and extract media resources directly from web pages. It enables users to easily identify and download various media content with just a few clicks. This extension is open source, with its source code available on GitHub, allowing transparency and community contributions.

Users should ensure they respect copyright laws and permissions when downloading content using 猫抓. Detailed documentation is provided to assist with installation, usage, and troubleshooting, making it a reliable tool for media sniffing needs.

## Rankings

- #590 — Overall
- #42 — Download Management
- #64 — Search Tools
- #87 — Photos, Music & Videos
- #6 — match
- #21 — education

## Permissions and access

### Permissions

- `tabs`
- `webRequest`
- `downloads`
- `storage`
- `webNavigation`
- `alarms`
- `scripting`
- `declarativeNetRequest`
- `contextMenus`

### Host permissions

- `*://*/*`
- `<all_urls>`

### Content script matches

- `*`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension was updated in the past 3 months. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Users generally find cat-catch very useful and effective—particularly for downloading encrypted HLS and sites like Bilibili—but multiple reviews report stability problems (stops working, memory leaks) and practical limitations (mobile support, local-only/2GB limits). Reviewers also ask for continued maintenance and updates.

### Pros

- Consistently praised as very useful and easy to use (multiple reviews calling it "very good"/"great" and long-used).
- Can download encrypted HLS and works with video sites (explicit mentions of encrypted HLS and B站/Bilibili).
- Well-regarded by users who rely on it for video capture tasks (several positive endorsements).

### Cons

- Stability/reliability problems reported (extension stopped working and a memory-leak in v2.5.1 causing huge Firefox memory use).
- Functional/compatibility limitations mentioned across reviews (mobile not supported; restrictions like local-only viewing, inability to move files and a ~2GB limit were noted).
- Users expect continued maintenance/updates (requests for ongoing updates and issues implying need for fixes).

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Source: [Chrome-Stats](https://chrome-stats.com/d/cat-catch)