Firefox 3.6+ versions have a feature to allow the user to hide the Menu bar. Hit the '''Alt''' key to temporarily show the Menu bar, then open View > Toolbars and select Menu bar, so it has a check-mark. <br /> The F10 can also be used on most PC's to temporarily reveal the Menu bar. https://support.mozilla.com/en-US/kb/Menu+bar+is+missing ---- Also, you should update both the Java and Flash plugins. You are a few versions behind the latest security releases of each of those plugins. See this page for a security scan for all your plugins. <br /> http://www.mozilla.com/en-US/plugincheck/