hello houradg, it appears that you are using a very outdated version of firefox which will cause all sorts of issues, so please [https://www.mozilla.org/firefox/update/ update firefox to the latest version] as soon as possible: [[Update Firefox to the latest version]] in addition you also may want to update the driver for your graphics hardware which is involved in the kind of crash that you have referenced: http://support.amd.com/en-us/download/desktop?os=Windows%207%20-%2064