https://github.com/sec-ant/a2d2-firefox

The Firefox build that evades JavaScript anti-debugging debugger mechanisms
https://github.com/sec-ant/a2d2-firefox

anti-anti-debug anti-debugging debugger firefox github-actions javascript

Last synced: 3 months ago
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The Firefox build that evades JavaScript anti-debugging debugger mechanisms

• Host: GitHub
• URL: https://github.com/sec-ant/a2d2-firefox
• Owner: Sec-ant
• Created: 2023-04-25T13:56:58.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2024-04-11T20:34:15.000Z (10 months ago)
• Last Synced: 2024-04-11T22:23:34.662Z (10 months ago)
• Topics: anti-anti-debug, anti-debugging, debugger, firefox, github-actions, javascript
• Homepage:
• Size: 34.2 KB
• Stars: 30
• Watchers: 1
• Forks: 6
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
This is no longer needed because firefox 121 introduced an option to disable the debugger statement: https://www.mozilla.org/en-US/firefox/121.0/releasenotes/#note-789917

# {Anti {{Anti Debugging} Debugger}} Firefox

[![Build Firefox on All Platforms](https://github.com/Sec-ant/a2d2-firefox/actions/workflows/build.yml/badge.svg)](https://github.com/Sec-ant/a2d2-firefox/actions/workflows/build.yml)



The Firefox build that evades JavaScript anti-debugging `debugger` mechanisms.

## Introduction

This repository provides GitHub Workflows to build Firefox browsers that replace the [JavaScript `debugger`](https://developer.mozilla.org/docs/Web/JavaScript/Reference/Statements/debugger) with custom keywords. This bypasses the [`debugProtection`](https://github.com/javascript-obfuscator/javascript-obfuscator#debugprotection) used by websites like [weread](https://weread.qq.com/) and [mycloud](http://mcloud.to/) to secure their JavaScript code. Using these browser builds, developers can debug protected code without `debugProtection` constraints. The default keyword is `debugger[%Y%m%d%H%M%S]`, where `[%Y%m%d%H%M%S]` is a build-time timestamp, e.g., `20230427040458`. The workflow also allows for the customization of the `debugger` keyword.

## Download & Install

You can download the Firefox installer from [Github Actions](https://github.com/Sec-ant/a2d2-firefox/actions/workflows/build.yml) artifacts (look for `firefox-artifacts`), or from the [releases](https://github.com/Sec-ant/a2d2-firefox/releases).

## References

[Evading JavaScript Anti-Debugging Mechanisms by nullptrs](https://web.archive.org/web/20211031140141/https://nullpt.rs/evading-anti-debugging-techniques/)