I am using Proxomitron's "User Agent" filter (under Headers) and "Hide Browser's Version/Identity from JS" (under Web Page) to mask my browser and system to appear as Netscape 4.5 running on a Macintosh. However, some web sites can still correctly detect that I am running Netscape 6.2 on Win98, e.g.
https://snoop.anonymizer.com/ How do they do that and what can I do to prevent this?
Sven