This repository contains a stand-alone Firefox extension containing the same spoofing functionality than our stealth version of OpenWPM. That is, the JavaScript window.navigator.webdriver attribute is spoofed to false.
Execute build.sh. It creates the Firefox extension file stealth-extension.xpi.
This is a unsigned Firefox extension. Therefore, it is not possible to install it in regular versions of Firefox. However, Firefox Nightly and Firefox unbranded have an option to allow unsigned extensions. For more information, see the MozillaWiki.