Firefox Quantum is the code name for Firefox 57, which introduced a new user interface to Firefox called Photon, a new CSS engine called Stylo, and many speed improvements in comparison to previous versions of the browser.
How can I emulate the media type "print" in the new Firefox Quantum dev console? Tried to enable it somehow …
firefox firefox-quantumThe dupe candidate is for previous GM versions. The problem is likely somewhere around the different scopes where the userscripts …
javascript greasemonkey-4 firefox-quantum