Hi, I was able to get Tor to run on Firefox by adjusting Network Settings. It seems like Firefox will only run when Tor is open though. When I closed Tor, Firefox would not connect to other sites, and it told me there was something wrong with my proxy connection.
The other thing is that when I was using Tor on Firefox, I visited Google several times until it stopped me, saying that it had detected unusual traffic from my machine. Then it asked me to verify that I wasn't a robot. It listed my IP address, and for a second it looked like it wasn't my Tor generated identity, it was my actual IP address (I could be wrong about this - I tried again later and it listed my Tor IP, but the first time it looked like my actual IP). Can Google get through Tor to see your real address?
I tried going on Google again and it gives me a different message now, "We're Sorry: but your computer or network may be sending automated queries. To protect our users, we can't process your request right now."