I checked my settings while on vpn on the website panopticlick and while I'm mostly good, my browser fingerprint is "unique".
not that I have anything to hide but I like being private. It's supposed to be a right in the Land of the Free and the Home of the Brave...
I tried turning off javascript through about:config but it just breaks sites-like this one.
Yes there's extensions for that which send out false information based on default settings of popular devices. Those might lower your user experience though.