Talking about this "Alternative"
I'm having issues with Firefoxe's plugin-container.exe in combination with D+ in paranoid mode.
It keeps asking me 15 times if I wish to allow it access to the keyboard, I select remember but it keeps alerting... Anyone else having this?
The new plugin container is causing more problems I think. I was having problems with my vista aero theme and the plugin container. It kept disabling it but I finally got it working. I tried to rename plugin_container.exe to an .old file or disable it with D+, but it seems that FF relies on it now.

I'm using Paranoid mode. Haven't had the problem you described. It's a little odd that plugin container somehow is related to keyboard access? I wonder why.