Disable “plugin-container.exe” in Firefox

Go to about:config and set the value as below dom.ipc.plugins.enabled;false dom.ipc.plugins.enabled.npctrl.dll;false dom.ipc.plugins.enabled.npqtplugin.dll;false dom.ipc.plugins.enabled.npswf32.dll;false dom.ipc.plugins.enabled.nptest.dll;false and restart Firefox for the change to take effect.