Not sure what causes that. As the first step, could you turn off proxies here: * Windows: "3-bar" menu button (or Tools menu) > Settings (previously "Options") * Mac: "3-bar" menu button (or Firefox menu) > Preferences * Linux: "3-bar" menu button (or Edit menu) > Preferences * Any system: type or paste '''about:preferences''' into the address bar and press Enter/Return to load it In the search box at the top of the page, type ''proxy'' and Firefox should filter to the "Settings" button, which you can click. Select "No proxy" and click OK to save the change. Any difference?