Delete Location data

Hi,

if I want to access the location data on google maps, sometimes firefox crashes because of too many data. Is it possible to delete old data ? (I know it is possible to filter, but firefox crashes before I can access the filter element !)
For further versions : It would be nice if the map refreshes each time new data is received from the phone.

there will be a new portal release this week, based on completely new technology. try if it solves your problem.