Almost
```
$ xdg-open http://google.com
/opt/local/bin/xdg-open: line 369: firefox: command not found
/opt/local/bin/xdg-open: line 369: mozilla: command not found
/opt/local/bin/xdg-open: line 369: netscape: command not found
xdg-open  no method available for opening 'http://google.com'
```