Connect from New Country without restarting TOR Browser

Question

Is it possible to change the IP address without restarting the Tor Browser?

So, each time we start the Tor Browser, it connects through a new node. Would it be possible to do the following?

1. In a Browser such as FireFox, set the SOCKS5 proxy to 127.0.0.1 and port 9050.
2. Keep the Browser Session running.
3. Edit the torrc file with new value for ExitNodes and each time restart the tor service.

For example:

ExitNodes {US}
service tor restart

After this, edit the node to some other country:

ExitNodes {fr}

And then restart Tor service again:

service tor restart