You can use something like https://addons.mozilla.org/en-US/firefox/addon/refcontrol/ https://addons.mozilla.org/en-US/firefox/addon/refcontrol/ to control who

You can use something like https://addons.mozilla.org/en-US/firefox/addon/refcontrol/ https://addons.mozilla.org/en-US/firefox/addon/refcontrol/ to control who gets your referer. I default to no one and make exceptions for poorly coded websites.