Could you post an example of the filter message? This article has more information on the filters built in to Firefox: [http://www.mozilla.org/en-US/firefox/phishing-protection/ Firefox Phishing and Malware Protection]. It's possible that you also have a Firefox add-on, or external software, that is filtering what you see. However, we don't have enough information to help identify it yet. If you want to review a list of your add-ons, you can find them under: Help > Troubleshooting Information.