Firefox makes use of a feature called Geolocation, which uses your IP address to "locate" where you are.

This is good for looking for restaurants, where to park and so on.

You can turn geolocation off for certain website by:

1. Navigate to the site to which you've given permission
2. Go to the Tools menu, then select Page Info
3. Select the Permissions tab
4. Change the setting for Share Location

However, if you wish to turn off geolocation completely:

1. In the URL bar, type about:config
2. Type geo.enabled
3. Double click on the geo.enabled preference
4. Location-Aware Browsing is now disabled

You can read more here.

hello jbrener, websites can also approximate your location by the ip address your ISP is assigning to you - there's no way around that (without using a vpn service or a proxy which disguises your ip address).

http://www.yougetsignal.com/tools/network-location/

This is more likely caused by a reverse DNS look up of your IP address.

See:

• http://www.yougetsignal.com/tools/network-location/
• http://whatismyipaddress.com/
• http://browserspy.dk/ip.php

For using Geolocation you always need to confirm that you want to share your location.

• http://www.mozilla.com/firefox/geolocation/
• http://en.wikipedia.org/wiki/Geotagging

To all, thank you, solved