Displays the current screen as nicely rendered SVG in FireFox.
See JOSM trac: 
Use the plugin manager to install the plugin.
Alternatively, you can download it directly from  and put it into your plugin directory.
You need to have FireFox installed and set the Firefox executable under Preferences/MapSettings.
On Mac OS, Firefox executable must be set like this: "/Applications/Firefox.app/Contents/MacOS/firefox".
Activate with new menu item View/Osmarender. This will create an XML file and open it in a new Firefox window.