rem: var cache = Components.classes['@mozilla.org/network/cache;1?name=manager'].getService(); var cacheService = cache.QueryInterface( Components.interfaces.nsINetDataCacheManager); cacheService.clear( 2 ); 
add: prefClearCache(nsINetDataCacheManager.MEM_CACHE); 
context: function prefClearMemCache(){  var cache = Components.classes['@mozilla.org/network/cache;1?name=manager'].getService();  var cacheService = cache.QueryInterface( Components.interfaces.nsINetDataCacheManager);  cacheService.clear( 2 );}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/2e982313faba97158cd15ea77780197460c060f3/pref-cache.js/buggy/xpfe/components/prefwindow/resources/content/pref-cache.js