We all here would prefer technical goals, but raising awareness and social projects are, for better or worse, other major Mozilla goals.
Why they don't do it ? Why they copied the Chrome interface ? Why they use Google as a service ?
Because Chrome did a lot of things right and copying it is a benefit to most users.
Getting rid of the status bar and menu bar comes to mind (both can still be added back in firefox). Or the unified address bar, most people WANT it to search (and again, in firefox you can disable that).
> Why they use Google as a service ?
Is this really a question? It's of course for the money. But guess what? When they briefly switched to bing, people were just switching back to Google. Because for better or worse, people expect/want Google Search.