Widevine L3 Decrypter

Name: Widevine L3 Decrypter
Rating: 4.75 (8 reviews)
Author: YeetMasta

Chrome/Firefox extension for pen-testing to retrieve encryption keys of Widevine protected content ! PLEASE DECRYPT CONTENT IF YOU DON'T HAVE THE RIGHT TO DO IT!

Download

Install

Features & Capabilities

Widevine L3 Decrypter is a Chrome and Firefox browser extension designed primarily for penetration testing by enabling retrieval of encryption keys from Widevine L3 protected content. It assists security professionals in assessing content protection by accessing the Android L3 CDM key pair files to decrypt encrypted media.

The extension supports multiple CDM key pair formats such as device.wvd, device_client_id_blob + device_private_key, client_id.bin + private_key.pem, and remote.json for remote CDMs. It includes detailed installation instructions for Chrome, Firefox, and Kiwi Browser on Android, guiding users through loading the unpacked extension and preparing the necessary cryptographic keys.

Important: This extension is intended strictly for authorized pen-testing and security research. Users must have legal rights to decrypt any protected content to avoid violating copyright laws.

User Growth & Download Statistics

Add-on Privacy & Security Developer Tools AI

By:

Daily users:

Rating:

Version:

241029.6 Last updated: 2026-02-04

Version code:

6140811

Creation date:

2024-10-22

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

7.24MB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-14

Compare stats and ranking:

Ranking

# 1,379

Other rankings

#217 in Other extensions ▲ 1#75 in encrypt keyword 22 ▼ 3#108 in crypto keyword 35 ▼ 2

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

YeetMasta

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/widevine-l3-decrypter/

Permission Change History

2025-04-09: Version 241029.3 → 241029.5

Add Permissions: fetch

User Reviews

by Mi*****, 2026-07-10

Still working in 2026, good job

by Ma*****, 2026-05-02

View all user reviews ›

Is Widevine L3 Decrypter Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Widevine L3 Decrypter requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
Critical ****** ****** ** ******* ***** ***** *** ** **** ** ***** **** ******** ****** *** ******** ********** * ******* ********
High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Widevine L3 Decrypter is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******