Storage

From PlainOldWebserver

SQLite works within Firefox 2.0 onward. This creates persistent, easily accessible storage. Storage is file-based, so you need to look for this 'test.sqlite' file in your personal profile directory.

   var filename = "test.sqlite";
   var dirservice=Components.classes["@mozilla.org/file/directory_service;1"].
       getService(Components.interfaces.nsIProperties);
   var f = dirservice.get('ProfD', Components.interfaces.nsILocalFile);
   f = pow_append_path(f, filename);
   var storageService = Components.classes["@mozilla.org/storage/service;1"]
                     .getService(Components.interfaces.mozIStorageService);
   var mDBConn = storageService.openDatabase(f);

Result:

 Look in your profile directory for 'test.sqlite'.