From GARMIN Corporation:
The Garmin Communicator Plugin allows your Garmin GPS to communicate with any supported website: send your zumo rides to Garmin Connect, plan your trips with Google Maps and MapQuest, find your favorite caches with Geocaching.com and so much more.communication with your Garmin GPS just got easier thanks to the Garmin Communicator Plugin. the free internet browser plugin that sends and retrieves data from Garmin GPS devices. The Garmin Communicator Plugin lets you connect your Garmin GPS with your favorite website. Once the plugin is installed, just connect your Garmin GPS device to your computer, and you're on your way. The Garmin Communicator can send and retrieve data from any supported website.