It's very easy to change your user agent / every type of header, you can send any string you want to a server, even an empty one. There are extensions/add-ons

It's very easy to change your user agent / every type of header, you can send any string you want to a server, even an empty one. There are extensions/add-ons to very easily change your user-agent on the fly, on Firefox I can recommend https://addons.mozilla.org/en-US/firefox/addon/user-agent-switcher/ https://addons.mozilla.org/en-US/firefox/addon/user-agent-sw... There should be an extension to randomize headers / and strings in a certain interval by itself, or maybe just based on a number of possibilities provided by the user. So it would never (well at least not often) brake anything, because it would never say "I don't have flash, I don't have java" but it would always report different versions and mix it up. Sounds quite possible, any Firefox Add-On Developer reading this? ;)