If you use the Geocaching Map Enhancements userscript, you can get My Topo maps back by clicking the script's configuration (gear) icon, choosing "Add more maps", pasting the code below into the box, and hitting "Add mapsource".
{"alt":"My Topo", "tileUrl":"http://maps.mytopo.com/Groundspeak/tilecache.py/1.0.0/topoG/{z}/{x}/{y}", "attribution":"USGS map from <a href='http://www.mytopo.com/index.cfm'>MyTopo.com</a>", "minZoom":9, "maxZoom":16}
Sorry - the changes to the website broke GME in various complicated ways, including the configuration screens not working in Firefox. v0.5.10, uploaded today, should fix that and make the instructions above work again for adding back My Topo.
Also, follow these links if you're interested in better quality topo maps of Canada or New Zealand.
Userscripts are add-ons for your web browser that can change the way websites look or behave. They can work in most web browsers, apart from Internet Explorer. There are full installation instructions for GME at this address: http://userscripts.o...pts/show/109145
You need to use GME's gear icon (at the bottom-left of the map screen), rather than the one in the FF add-on manager. If you don't see any new icons at the bottom-left of the map, then GME probably isn't installed properly. Make sure you've got the latest version and check these troubleshooting tips.
Thanks, jri, I finally got that to work as you described.... only to get a blank map page with "MYTOPO MAPS ONLY AVAILABLE IN SELECT APPS. etc" Curses, foiled again!!! I give up.
I got the same result as Colin & Daddy after updating my FF browser and adding the GME and the my topo script. Any hope of getting topos with cache icon overlay?