Wanted: Browser that uses OpenVPN for http requests

I was pleasantly surprised how easy it was to set up my Asus RT-N66U router as a OpenVPN server. I flashed it with a version of Tomato USB, though you should probably use the Shibby version as it seems more up to date.

Now that I have a cool OpenVPN server, I get to decide when I hide my internet traffic from public wireless accounts. This is less important than it used to be, as more and more people are implementing https. Still there is the occasional holdout, and it would be nice if other people couldn’t sniff your traffic.

What I really would like is a browser plugin that let me direct http requests through the OpenVPN server, but would send https directly, for performance reasons. Does anything like this exist? 5 min of googling yielded nothing.