Your above posted system details show outdated plugin(s) with known security and stability risks. *Java Plug-in 1.4.2_03 for Netscape Navigator (DLL Helper) *Shockwave Flash 10.0 r22 Update the [[Java]] plugin to the latest version. *http://java.sun.com/javase/downloads/index.jsp (Java Platform: Download JRE) Update the [[Managing the Flash plugin|Flash]] plugin to the latest version. *http://www.adobe.com/software/flash/about/ ---- Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes). See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]