I am looking for a way to automate couple of browsers... Firefox and Chrome (for now on just Windows) from an external application/process.
Is there a way to do thin
TestR will let you automated IE, FF, and Chrome. I've started working on Edge support but just haven't had the time.
https://github.com/BobbyCannon/TestR
You can use the nuget package.
https://www.nuget.org/packages/TestR/
Here is some examples.
https://docs.epiccoders.com/Page/35/TestR