http://addneditcookies.mozdev.org/notes.html#c5 Found an alternate download site. http://ersplus.free.fr/spip/IMG/xpi/AddNEditCookies-0.2.0.4-Fr.xpi Is this the same file ? Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8b2) Gecko/20050306 MSIE7/7.0