I updated firefox 7.o.1 to firefox 8.0 yesturday. Since today, while visiting any websites via firefox 8.0, I get this pop-up message. Heading of the pop-up message says this JavaScript Application and the message says Exc in ev hand: Error: Bad NPObject as private data! What's the message about? I am using latest version of Java, Windows 7 sp1 with all the latest updates and patches and latest version of MSE (Microsoft Security Essentials) and latest version of MalwareBytes' AntiMalware. Is this a problem with Java or something else. Oh after i visit any website and that pop up message comes up, it has only 1 option and that is to click ok, after that it's gone. What's the problem? This message comes up sometimes, since today it came up around 5-6 times. After clicking ok, it goes away, and after that browsing is normal.