While testing Geolocation feature in IE9 RC, I came to know about a service that actually tells whether a browser supports Geolocation or not. As you know Firefox, Google Chrome, Opera, Safari browsers and IE9 RC support GL, want to know whether any browser you’re using Geolocates you or supports Geolocation feature, here is how.

check for a browser's geolocation support

Visit http://html5demos.com/geo in the browser address bar, if you see a prompt to know your location, you can confirm that, that browser supports geolocation.