Plugin container .exe slows firefox 19

To disable this option in Firefox Type about:config in the address bar.

then in config search for dom.ipc

Then in this section you will see the value ones that say true make them false.

And then you will have to add these below to make it not pop up.

Make these all boolean and make them false
dom.ipc.plugins.enabled.npctrl.dll
dom.ipc.plugins.enabled.npqtplugin.dll
dom.ipc.plugins.enabled.npswf32.dll
dom.ipc.plugins.enabled.nptest.dll

These extra add ons will Disable Plugin-Contaner.exe if done correctly. Plugin-Contaner.exe will slow down the Firefox big time if not make it crash.