Mozilla released Firefox 16.0.2 addressing "Location object issues". Interested users can read the detail about this issue here.
Firefox 16.0.2 is available through self-update (if the user has not touched the default setting) and available from Firefox downloading page. Firefox 16.0.1 still supports Windows XP SP2 (released in August 2004) on Windows platform, on the Mac end, it's a bit unfair that Firefox only supports Intel-based Mac with OS X Leopard (10.5) (released in October 2007) or later on Mac platform.
This same issue is also resolved in Firefox ESR 10.0.10, Thunderbird 16.0.2, Thunderbird ESR 10.0.10, and SeaMonkey 2.13.2
UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_2) AppleWebKit/536.26.14 (KHTML, like Gecko) Version/6.0.1 Safari/536.26.14