Hold it, bottle it up and save it for the next one

SOCKS is built in to OpenSSH, so it’s a trivial matter to set up a local SOCKS proxy with the -D flag. For example:

$ ssh -D 12345 myuser@remote_ssh_server

That will open up the port 12345 on your local machine as a SOCKS proxy so  all your HTTP traffic can be specified to go through the SSH tunnel and  out remote_ssh_server on the other end. Your proxy server is now set  up.
Next, set up your browser to use the proxy server. Most browsers  include proxy support. For Firefox 3, go to  Edit→Preferences→Advanced→Network→Settings, and specify that you want to  use a Manual Proxy, localhost, port 12345 and SOCKS v5 (although  OpenSSH supports both versions 4 and 5).
Now your browser is using a secure tunnel to your remote SSH server.