message box pops up that says firefox must close when I go to certain websites
Message box pops up and says must close firefox when I go to different websites.
Your plugins list shows outdated plugin(s) with known security and stability risks.
# Java Plug-in 1.6.0_03 for Netscape Navigator (DLL Helper)
Update the Java plugin to the latest version. See http://java.sun.com/javase/downloads/index.jsp#jdk (you need JRE) --- Your list of installed plugins shows that you have the My Web Search Plugin installed, well-known malware which you should remove (S4BAR.DLL). See http://kb.mozillazine.org/Issues_related_to_plugins (Identifying installed plugins and Problematic plugins)
You can check if you have any of these from "Fun Web Products" installed: Control Panel > Add or Remove Programs: Ask.com Bar,My Search Bar,MyWay Speed Bar,My Web Search Bar,Fun Web Products Easy Installer
http://www.safer-networking.com/removemywebsearch.php http://www.pchell.com/support/mywebsearch.shtml - PC Hell: My Web Search Removal Instructions