Tor browser does not start an HTTP proxy by default, but you can add HTTPTunnelPort 127.0.0.1:9152 to the torrc file to enable it.
https://manpages.debian.org/experimental/tor/tor.1.en.html
HTTPTunnelPort [address :]port|auto [isolation flags]
Open this port to listen for proxy connections using the “HTTP CONNECT” protocol instead of SOCKS. Set this to 0 if you don’t want to allow “HTTP CONNECT” connections. Set the port to “auto” to have Tor pick a port for you. This directive can be specified multiple times to bind to multiple addresses/ports. If multiple entries of this option are present in your configuration file, Tor will perform stream isolation between listeners by default. See SocksPort for an explanation of isolation flags. (Default: 0)