On some websites that use radio buttons to navigate, I have found that either it returns with a blank line (such as thumbnails on Newspapers.com) or the site hangs (as I did when I tried to register online for two different transactions). In contrast, when I switch browsers, the sites work just fine. Because I thought that restoring Firefox would solve the problem, I did just that; however, the problem persists. What should I do now to make the sites work correctly?