http/Refererリクエストヘッダの除去について、ここに記述してください。

1. Firefox

http://www.technipages.com/firefox-enable-disable-referrer.html 

1. Type about:config in the address bar and press Enter.

2. Find the entry that says Network.http.sendRefererHeader and double-click on it.

3. Set the entry to one of the following:

    0 – Disable referrer.
    1 – Send the Referer header when clicking on a link, and set document.referrer for the following page.
    2 – Send the Referer header when clicking on a link or loading an image.

See also: Network.http.sendRefererHeader

http://www.st.ryukoku.ac.jp/~kjm/security/memo/referer.html 古い

http://www.nitoka.net/archives/2006/12/httpshttp.html

http://www.nullrefer.com/hide_referrer.html

firefox 

Manually Setting

Warning: this method may be considered as a privacy risk as all sites will receive referers.

    Type about:config in the URL address bar.
    A large collection of alphabetically listed information will appear in the browser window.
    Search for network.http.sendRefererHeader.
    By default, this is set at 2.
    If it is set to 0 - which disables sending referrers - right click it, select Modify and enter 0 as the value.

See http://kb.mozillazine.org/Network.http.sendRefererHeader for more information.