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
The Firefox build that evades JavaScript anti-debugging debugger mechanisms.
This repository provides GitHub Workflows to build Firefox browsers that replace the JavaScript debugger with custom keywords. This bypasses the debugProtection used by websites like weread and mycloud 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.
You can download the Firefox installer from Github Actions artifacts (look for firefox-artifacts), or from the releases.