The page http://www.azflyandtie.com it is reported as an "attack site" "Attack Sites are Web sites that try to infect your computer with malware when you visit. These attacks can be very difficult to detect; even a site that looks safe may be secretly trying to attack you. Sometimes the Web site’s owner won’t even know that the site has been turned into an Attack Site." (copied from : http://www.mozilla.org/en-US/firefox/phishing-protection/ ) that's why you see this page http://www.mozilla.com/firefox/its-an-attack.html if you want to get in this page anyway you must '''UNcheck''' in Options window > Security panel > '''Block reported attack sites''' [ ] . see for more info : [https://support.mozilla.org/en-US/kb/security-and-passwords-settings?redirectlocale=en-US&redirectslug=Options+window+-+Security+panel#w_security-settings Security settings] thank you Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.