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If you use the HTML5 Geolocation Api in firefox and have no GPS attached to get your current position, firefox uses the nearby wlan ssids to get your position. Firefox sends the ssids via Geolocation Network Protocol to and gets a lat/long in response. You can modify the server via about:config with the preference key geo.wifi.uri.

The chrome geolocation works the same way. But I cannot find a setting (no about:config in chrome) where I can change the server for ssid -> location mapping. Is it possible to change the server and where do I change the setting?

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up vote 4 down vote accepted

With a little time delay from your question but... you can set the geolocation provider modifying the file "Local State" inside the Chrome installation dir User Data/ There is the geolocation tag and you can set the URL and the token you will use.

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Can you be a little more specific, I don't seem to have any text starting "geo" what so ever in the "Local State" file. – Peter Nimmo Feb 21 '12 at 10:51
This workaround seems to work until few version ago of chrome, also was stated this work around. If you find any other solution please write it – markov00 Mar 5 '12 at 16:45

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