Hi chinnadurai1986 Looks like it is hang due to your java plugin. I guess you may need the plugin if you are using it (Or could it be malware using it ?) Try disabling the plugin do the crashes stop ? * [[Disable or remove Add-ons]] * And just in case you; or any other reader of this thread is unclear note: http://kb.mozillazine.org/JavaScript_is_not_Java Then try using to use it more selectively and try to determine what you are doing with Java when it crashes. If you need to rule out malware then please scan with all the tools listed in this article * [[Troubleshoot Firefox issues caused by malware]] --------- Forum note * Your crash report bp-f7620835-7f87-4829-9223-fbdee2160831 *Crash Signature: hang | npjp2.dll@0xb990 *Process Type plugin Java(TM) Platform SE 8 U101 Version: 11.101.2.13 Filename: npjp2.dll