Have you read the news lately? Facebook has been a special concern as of late...

Preferential? Other than publicity, I'd say it's the opposite. Though I see your point.

Because facebook gives preferential treatment to us?

Still shedding users and they need something to press release.

I think you meant to ask why is Facebook treating its users like shit?

You can accomplish it without any extension by creating a 'Google' container and choosing yes on every Google site when it asks you if you want to always open in that container.

Or you can fork the extension, change the container name and color, and update the array of domains.