This page allows SSH to OFB via the MindTerm Java applet.
This page requires that the Java Plug-in be installed for your web browser. If your browser asks whether to allow the plug-in to run, by all means, let it run: Java is safe for your computer.
You can check your Java installation at (and install Java from) java.com. You can also try different web browsers, Google Chrome and Firefox, which may already be on your machine and may have a working Java Plug-in.