
This little script will try to detect if the page you're currently viewing is a map file, and if it is it will render it as SVG and display it. Screenshot
It might work in FF/greasemonkey, too, just too lazy to wait for firefox to start up and then search for that extension, restart FF again and all that… It shouldn't use anything opera specific, anyways.
To install (if you haven't used userJS before): Create a new directory somewhere and save the script in it. Then enter opera's preferences (alt-p) and go to Advanced→Content→JavaScript options. At the very bottom of that dialogue, select the directory the script is in. Enjoy

Maybe I'll extend it one day to parse v2 zones and shapes
