You can check the settings: *Tools > Options > Privacy > Firefox will: "Use custom settings for history" > "Remember download history" ---- There are other things that need your attention. Your above posted system details show outdated plugin(s) with known security and stability risks that you should update. * Shockwave Flash 10.0 r12 * Next Generation Java Plug-in 1.6.0_17 for Mozilla browsers Update the Flash plugin to the latest version. *https://support.mozilla.com/kb/Managing+the+Flash+plugin *http://www.adobe.com/software/flash/about/ Update the Java plugin to the latest version. *https://support.mozilla.com/kb/Using+the+Java+plugin+with+Firefox *http://www.oracle.com/technetwork/java/javase/downloads/index.html (Java Platform: Download JRE)