Hardening Firefox using Arkenfox user.js

You can read the Arkenfox official wiki based on your threat model. Create the user-overrides.js file / download or copy here user-overrides.js. Download the official release from here or use git clone from https://github.com/arkenfox/user.js , then locate your Mozilla Firefox profile, and open terminal.

Linux or MacOS: Copy the prefsCleaner.sh, updater.sh and user.js file from the extracted zip into your Firefox profile, as well as your user-overrides.js file.

On your terminal inside your Firefox profile folder. Don’t forget to quit your Firefox before you start

chown +x prefsCleaner.sh
./prefsCleaner.sh
./updater.sh