Adds Freemap Outdoor and Ortofotomozaika SR map layers to www.geocaching.com and adds link to open cache on www.freemap.sk.
Maps on www.geocaching.com don't provide much details for outdoor activities. This extension adds Freemap Outdoor and Ortofotomozaika SR map layers to following maps:
* https://www.geocaching.com/map/
* https://www.geocaching.com/play/map
* preview map on individial caches (eg. https://www.geocaching.com/geocache/GC9DK35)
It also adds link to open www.freemap.sk with highlighted position of the cache.