I inherited a Chromebook a couple of weeks back and wanted to check it out. Having never run the Chrome OS it was all new to me.
Setting up with a Google account is easy, and took very little time.
Getting used to the UI from Windows or Linux was a little more challenging, but i'm getting there I think.
I wanted to install Firefox, and that's where it gets far more challenging. I followed the directions to set the Linux environment, then to run the FF download.
Nothing, it won't run.
The Chrome help for this is negligible to non-existent.
What this tells me is that Google do not want anyone to run anything other than Chrome, and what it thinks is a captive audience for its own ecosystem.
It also tells me that a Chromebook is aimed at basic users.