Since a few updates, this flag no longer has any effectiveness. I used it to protect myself from fingerprinting (with other protections obviously), and it worked very well. It is supposed to randomize the data obtained with the javascript screen API and this is no longer the case at all. All sites access it without problems and it is a SLIGHT problem for me. I use an extension that blocks fingerprinting from the fingerprint.com script, but it's clearly not enough. Is there an explanation?