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geo devtool 0.9.1.1-signed No Restart
Update your geolocation in real time by moving a marker on a map.
Debug applications using geolocation (working both with getCurrentPosition and watchPosition).
Fake your location when a website asks for it.
About this Add-on
1. Only works with Firefox Nightly and Aurora 9
2. Due to a bug in the platform, it is impossible to update your location once a getCurrentPosition() call opened a permission prompt, see bug 688465.
To work around this bug, update your position before being prompted for permission. Reload the page if necessary to display the permission prompt again. A bug fix has already landed in nightlies and will be available to everybody in Firefox 10.