For Firefox, need to enable manual in order to enable the flash. Under URL key in about:config, search plugin.make sure the below 2 option is set to FALSE. i) plugin.default_plugin_disabled ii) plugin.disable Using flash 10 from TI with Firefox cause the browse to be automatically closed once you click to any tab or link in web that running flash 10 such www.wix.com and same scenario goes to www.flashearth.com. The best is using Firefox with the tweakflash.