¡Hola! This seems to be caused by "WebSense Content filtering" per https://bugzilla.mozilla.org/show_bug.cgi?id=682912 Can you please try uninstalling it or disabling it and see if the crashes go away? Let us know how it goes. ¡Gracias!

Product Firefox Version 42.0 Build ID 20151029151421 Release Channel release OS Windows NT OS Version 6.1.7601 Service Pack 1 Signature qipcap.dll qipcap.dll = Websense Data Endpoint icudt55.dll = International Components for Unicode NSCFA.DLL = Samsung nsccor03.dll = Samsung procmon.dll = Samsung Anywall3.dll = Samsung icatcdll.dll = ESCORT = Samsung ------------- Disable Samsung and Websense programs. -------- If you have problems with current Shockwave Flash plugin versions then check this: * see if there are updates for your graphics drivers '''https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration''' * disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later) '''https://forums.adobe.com/message/4468493#TemporaryWorkaround''' * disable hardware acceleration in the Flash plugin '''https://forums.adobe.com/thread/891337''' See also: * '''http://kb.mozillazine.org/Flash#Troubleshooting'''