rem: SetPageProxyState("invalid", null); 
add: SetPageProxyState("invalid"); 
context: function UpdatePageProxyState(){  if (gURLBar && gURLBar.value != gLastValidURLStr)    SetPageProxyState("invalid", null);}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/e32ba0f541d5a6bca938373e8bb3dbac95d5ba09/browser.js/buggy/browser/base/content/browser.js