rem: walletService.WALLET_Prefill(false, window._content); window.openDialog("chrome: "_blank", "chrome,modal=yes,dialog=yes,all, width=504, height=436"); 
add: try { walletService.WALLET_Prefill(false, window._content); window.openDialog("chrome: "_blank", "chrome,modal=yes,dialog=yes,all, width=504, height=436"); } catch(e) { } 
context:     function formPrefill() {      var walletService = Components.classes["@mozilla.org/wallet/wallet-service;1"].getService(Components.interfaces.nsIWalletService);      walletService.WALLET_Prefill(false, window._content);      window.openDialog("chrome://communicator/content/wallet/WalletPreview.xul",                        "_blank", "chrome,modal=yes,dialog=yes,all, width=504, height=436");    }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/6181bee10f54d7f293f16f59d75718baed4551f8/walletOverlay.js/buggy/extensions/wallet/resources/content/walletOverlay.js