Bridge Map view plug in or extension?

This script will display image location from Bridge in Google Maps. Right click on an image and "Show location on Google Maps" is at the bottom of the menu. 

This works on Windows but I can't test it on a Mac.

Some expert here might be able to improve upon it and test it on the Mac system.

//@target bridge
if (BridgeTalk.appName === "bridge") {
mapFromGPS = MenuElement.create("command", "Show location on Google Maps", "at the end of Thumbnail");
}
mapFromGPS.onSelect = function () {
if (app.document.selections.length < 1) return;
var thumb = app.document.selections[0];
var md = thumb.synchronousMetadata;
md.namespace = "http://ns.adobe.com/exif/1.0/";
var lat = md.GPSLatitude ? md.GPSLatitude : "" ;
var lon = md.GPSLongitude ? md.GPSLongitude : "";
if (lat === "") return;
if (lon === "") return;
var latparts = lat.match(/\d+/g);
var lat1 = (Number(latparts[0]) +(Number(latparts[1].toString()+"."+latparts[2].toString())/60)).toFixed(4);
var lonparts = lon.match(/\d+/g);
var lon1 = (Number(lonparts[0]) +(Number(lonparts[1].toString()+"."+lonparts[2].toString())/60)).toFixed(4);
var latneg = "";
switch (lat.match(/.$/).toString()) {
case "S":
latneg = "-";
break;
case "W":
latneg = "-";
break;
}
var lonneg = "";
switch (lon.match(/.$/).toString()){
case "S":
lonneg = "-";
break;
case "W":
lonneg = "-";
break;
}
var latResult = latneg+lat1;
var lonResult = lonneg+lon1;
// var cmd = "start /B \"C:\\Program Files\\Mozilla Firefox\\firefox.exe\" \""+ "https://www.google.com/maps/search/?api=1&query=" + latResult + "," + lonResult + "\"";
var cmd = "start /B \"\" \"https://www.google.com/maps/search/?api=1&query=" + latResult + "," + lonResult + "\""; // Should open url in default browser
app.system(cmd);
};

Forgot to add this is on a Mac.